CN107142239A - The method for improving ox IVF Embryos culture efficiency - Google Patents

The method for improving ox IVF Embryos culture efficiency Download PDF

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CN107142239A
CN107142239A CN201710433656.6A CN201710433656A CN107142239A CN 107142239 A CN107142239 A CN 107142239A CN 201710433656 A CN201710433656 A CN 201710433656A CN 107142239 A CN107142239 A CN 107142239A
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nutrient solution
amino acid
ivf embryos
concentration
embryo
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CN107142239B (en
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许晓椿
王小武
郭晶
陈敏
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Tianjin Limu Biotechnology Co ltd
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Intco Boya (tianjin) Co Ltd Gene Technology
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    • C12N5/00Undifferentiated human, animal or plant cells, e.g. cell lines; Tissues; Cultivation or maintenance thereof; Culture media therefor
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Abstract

The present invention relates to the method for improving ox IVF Embryos culture efficiency.Specifically, one aspect of the present invention is related to a kind of ox IVF Embryos nutrient solution, and the nutrient solution is included:NaCl, KCl, NaHCO3, MgCl2, KH2PO3, Sodium Pyruvate, glucose, galactonic acid calcium, hyclone, L glutamine, essential amino acid, nonessential amino acid, glutathione and water.Further relate in the method for the efficiency culture ox IVF Embryos of raising, this method comprises the following steps:Ox IVF Embryos are placed in ox IVF Embryos nutrient solution, In vitro culture is carried out under 38.5 DEG C, 0.5%CO2,100% damp condition.Technique effect excellent as used in the description is presented in the inventive method and the nutrient solution used.

Description

The method for improving ox IVF Embryos culture efficiency
Technical field
The invention belongs to technical field of animal reproduction, it is related to a kind of technology for agricultural-animal and veterinary breeding, specifically relates to And a kind of method for improving ox IVF Embryos culture efficiency, more particularly, it relates to which ox IVF Embryos are trained Application of the nutrient solution in ox IVF Embryos culture.Further, the invention further relates to trained using the ox IVF Embryos The method that nutrient solution carries out ox IVF Embryos culture.Particularly, the method for ox IVF Embryos culture of the present invention has excellent Different cost advantage.
Background technology
(In Vitro Fertilization) or (external fertilization) in vitro fertilization refer to that lactation is moved The technology of fertilization process is completed in the environment that the sperm and ovum of thing are manually controlled in vitro, English abbreviation is IVF.Due to it with Embryo transfer technology (ET) is inseparable, and referred to as IVF-ET.In biology, after IVF to parent The animal of acquisition claims test tube animal (test-tube animal).The success of this technology is in the 1950s, at nearest 20 years Quickly grow, reached its maturity and turned into an important and conventional animal reproduction biotechnology.
Technology in vitro fertilization has important to animals' reproduction study mechanism, husbandry sector, medical science and animals on the brink of extinction protection etc. Meaning.Such as make experiment material with mouse, rat or rabbit, technology in vitro fertilization can be used for research mammalian gamete to occur, Fertilization and early embryo development mechanism.In livestock animal breeding, technology in vitro fertilization provides cheap and high for Embryo Production The means of effect, to making full use of improved seeds resource, shorten the livestock reproduction cycle, and accelerating breed improvement speed etc. has important valency Value.In the mankind, IVF-ET technologies are some infertilities for the treatment of and overcome one of important measures of sex-kink disease.Technology in vitro fertilization Or the indispensable parts of modern biotechnology such as mammal embryo transplanting, clone, transgenosis and sexual control.
With the development of modern agriculture science and technology, in order to more make full use of the breeding potential of breeding cow, accelerate genetic breeding Process, turns into inevitable in production practices using efficient breeding new technology.Ovum pick-up (Ovum pick UP, OPU) and body Outer fertilization technique (In Vitro Fertilization, IVF) is embryo's work that 1980s fast development is got up Journey new technology, the two, which is combined, can obtain the clear and definite embryo of a large amount of Genetic lineages, so as to shorten the generation inteval.At present, both It is important that technology has become the farmer of the animal husbandry developed countries such as American-European and Oceania to expand that breeding cow group uses Reproduction technique.However, using conventional ox Embryo Culture system (CR1aa and SOF liquid), ox blastocyst rate in vitro fertilization compared with It is low, and embryo quality causes the pregnancy rate after embryo transplantation acceptor low, therefore how to improve blastaea also far away from internal embryo Developmental rate and embryo quality turn into the emphasis that IVF Embryos are produced and the focus studied.
Early in 1878, German Scnenk just using rabbit and cavy as material, start to explore mammal it is external by Smart technology.But until nineteen fifty-one, Chinese American Zhang Minjue and Austin have found after sperm microcytotoxicity phenomenon respectively, in vitro fertilization Technology just obtains breakthrough.Ox technology in vitro fertilization by the maturation in vitro of egg mother cell, the In-vitro Capacitation of sperm, by The influence of many aspects such as the vitro culture conditions of smart ovum.
The in vitro culture of embryo is a key link of IVF technologies, is also oocyte in vitro maturation and in vitro fertilization The embodiment and inspection of technology final effect.After fertilization in vitro, embryonated egg need to undergo a series of into blastaea growth course Important change, includes formation, First cleavage, the activation of embryonic gene group, densification and the formation blastaea of zygote.This During, the change of external environment can cause gene expression to change, so as to influence normal development and the quality of embryo.Mesh Before, the in vitro culture research of Mammalian Embryo is concentrated mainly on improvement nutrient solution composition to meet different developmental phases Embryotrophy demand.Based on (Rosenkrans, C.F., Jr.and N.L.First, Effect of free such as Rosenkrans amino acids and vitamins on cleavage and developmental rate of bovine zygotes In vitro.J Anim Sci, 1994.72 (2):P.434-7) Charles Rosenkrans 1 (CR1) nutrient solution of exploitation With (Tervit, H.R., D.G.Whittingham, and L.E.Rowson, Successful the culture in such as Tervit vitro of sheep and cattle ova.J Reprod Fertil,1972.30(3):P.493-7) synthesis of exploitation is defeated Oviduct liquid (Synthetic Oviductal Fluid, SOF), two kinds of cultivating systems have been gradually formed through updating for many years.According to (Sagirkaya, H., et al., Developmental potential of bovine such as Hakan Sagirkaya oocytes cultured in different maturation and culture conditions.Anim Reprod Sci,2007.101(3-4):) and (Somfai, T., et al., Development of bovine such as Somfai p.225-40 embryos cultured in CR1aa and IVD101media using different oxygen tensions and culture systems.Acta Vet Hung,2010.58(4):P.465-74) achievement in research shows, CR1aa nutrient solutions are used There is preferable effect in ox Embryo Culture, can be widely applied to the Embryo Culture of ox;Thompson, J.G. etc. (Thompson, J.G.,et al.,Effect of inhibitors and uncouplers of oxidative phosphorylation during compaction and blastulation of bovine embryos cultured in vitro.J Reprod Fertil,2000.118(1):) and (Feugang, J.M., the O.Camargo- such as Jean M.Feugang p.47-55 Rodriguez,and E.Memili,Culture systems for bovine embryos.Livestock Science, 2009.121(2-3):P.141-149 result of study) shows that SOF nutrient solutions are also a kind of training for being suitable for ox Embryo Culture The system of supporting.Zhang Zhi's equality (Zhang Zhiping, An Zhixing, rust, Zhang Yong, the optimization Xibei Univ. of Agricultural & Forest Science & Technology of ox Embryo Culture system Journal, 2006.34) and Sang Guojun etc. (Sang Guojun, bovine oocyte and external embryo culture technique research .2008) result of study It has been shown that, CR1aa the and SOF nutrient solutions by optimization are adapted to the embryo in vitro culture of ox, obtain good culture effect. Mammalian Embryo development is the process of a hight coordinate and accurate adjustment.During evolution, gametid is progressively A series of molecule cascade network is formd, to ensure that embryonic development period is systematically carried out.In growth course, embryo's is interior Outer active oxygen radical (Reactive Oxygen Species, ROS) and the balance of antioxidant are played to early embryonic development Decisive role.
Most biochemical reaction produces ROS, its in the cell, it is outer play the role of important, a part of ROS plays signal The effect of molecule, but most of ROS are harmful to body.(Brooker, R.J., the Genetics such as Brooker, R.J.: Analysis and principles (4th ed.) .McGraw-Hill Science, 2011) report, ROS can cause carefully Born of the same parents' DNA damage, the oxidation of unrighted acid, the oxidation of Amino Acids in Proteins even can cause the inactivation of some enzymes.One As for, ROS exists in four kinds of forms, and wherein H2O2 oxidations are stronger, is the main factor for causing oxidative damage.
Numerous studies show that glutathione (GSH) is a kind of antioxidant existed in nonprotein form, can be removed A variety of free radicals:Ultra-oxygen anion free radical, hydroxyl radical free radical, hydrogen peroxide, hypochlorous acid and fat oxygen radical, and can tie up Hold intraor extracellular redox equilibrium.Intraor extracellular environment GSH and ROS level is to influence two weights during development of fertilized ova Want factor.Early in, (de Matos, D.G.and C.C.Furnus, the The importance of such as de Matos in 2000 having high glutathione(GSH)level after bovine in vitro maturation on embryo development effect of beta-mercaptoethanol,cysteine and cystine.Theriogenology,2000.53(3):P.761-71) once by adding β-mercapto during Embryo Culture in vitro Base ethanol, cysteine plus cystine improve blastocyst rate.
Although technology in vitro fertilization can be successfully applied to many mammals, because blastocyst rate in vitro fertilization is low and lead Cause production cost height, the efficiency of IVF Embryos low, limit extensive use of the technology in the practice of ox fast-propagation.Cause This, how reducing cost and improving ox IVF Embryo Productions efficiency and embryo quality turns into urgent problem to be solved.
At present, it is main using CR1aa and SOF liquid as embryo in-vitro culture solution in ox technical system in vitro fertilization, and herein On the basis of be improved, blastocyst rate has different degrees of raising, blastocyst rate average out to 30%-40%.For capsule Idioplasm amount, can be assessed by blastomere sum, ICM cell numbers/total cell number ratio, apoptosis rate.Blastomere Different and different, (Iwasaki, the S.and T.Nakahara, Cell such as S.Iwasaki in sum stage according to residing for blastaea number and incidence of chromosomal anomalies in bovine blastocysts fertilized in vitro followed by culture in vitro or in vivo in rabbit oviducts.Theriogenology,1990.33(3):P.669-75) the ox early blastocyst total cell number average out to 44 obtained, ICM cell numbers/blastaea total cell number ratio is 15.8% or so;Andrew J.Watson etc. (Watson, A.J., et al., Impact of bovine oocyte maturation media on oocyte transcript levels, blastocyst development,cell number,and apoptosis.Biol Reprod,2000.62(2): P.355-64) statistics ox blastomere apoptosis rate is about 7.7%-13%.
CN103898046B (Chinese Patent Application No. 201410073635.4) discloses one kind, and to be exclusively used in ox in vitro fertilization The nutrient solution of embryo, the culture formula of liquid is:NaCl 109.5mM、KCl 3.1mM、NaHCO3 26.2mM、MgCl2· 6H2O 0.8mM, KH2PO31.19mM, Sodium Pyruvate 0.4mM, glucose 1.5mM, galactonic acid calcium 5mM, 10v/v% tire ox blood Clearly, Glu 1mM, 2v/v% essential amino acids, 1v/v% nonessential amino acids and glutathione 3mM, are prepared with water;Institute The aqueous solution prepared after essential amino acid is mixed in proportion for following amino acid is stated, wherein, each amino acid content is:L- hydrochloric acid essence Propylhomoserin 6.32g/L, the water thing 2.1g/L of CYSTINE dihydrochloride 1.564g/L, L- histidine monohydrochloride one, ILE 2.625g/L, L-Leu 2.62g/L, L lysine HCL 3.625g/L, L-Methionine 0.755g/L, L-phenylalanine 1.65g/L, L-threonine 2.38g/L, L-Trp 0.51g/L, TYR 1.8g/L and Valine 2.34g/L;It is described Nonessential amino acid is the aqueous solution prepared after following amino acid is mixed in proportion, wherein, each amino acid content is:ALANINE The water thing 1.5g/L of 0.89g/L, L- asparagine one, L-Aspartic acid 1.33g/L, Pidolidone 1.47g/L, glycine 0.75g/L, L-PROLINE 1.15g/L and Serine 1.05g/L.Ox IVF Embryos are placed in above-mentioned nutrient solution and carried out In vitro culture, it is believed that result, which is shown, is substantially better than the control group for being not added with GSH, improves blastocyst rate and embryo quality, drop The cost of low produced in vitro embryo, is applied to practice for ox IVF technologies and provides experiment basis, can greatly accelerate that genetic breeding enters Journey.
Other bibliography:
Old big first fertilizations biology .2003, Beijing:Science Press;
Fang Junshun bovine embryo vitros production technical research《The agriculture sections of Chinese excellent MA theses full-text database Skill volume》.2007, (the 4th phase);
The influence of the clear cumulus cells of Cao Hai and condition of culture to ox embryo production in vitro efficiency《The outstanding master's degree of China Paper full-text database agricultural science and technologys volume》.2008, (the 9th phase);
I.H.KIM et al.Effect of exogenous glutathione on the in vitro fertilization of bovine oocytes.Theriogenology.1999,Vol.52(3)。
However, the method for having the culture of the improved ox IVF Embryos of performance is still expected in this area, such as still phase The method of ox IVF Embryos culture efficiency to be improved, for example, have the ox IVF Embryos with excellent cost advantage The method of culture.
The content of the invention
It is an object of the invention to provide a kind of method of the culture of the ox IVF Embryos of performance improvement, particularly phase Ox IVF Embryo Productions efficiency to be improved and embryo quality.More specifically, the present invention needs to provide a kind of to reach above-mentioned purpose It is exclusively used in the nutrient solution of ox IVF Embryos and and using the method for culture progress ox IVF Embryos culture.This hair A person of good sense has had now surprisingly been found that, excellent technique effect is presented using the inventive method, the present invention is consequently found that and be able to Complete.
Therefore, first aspect present invention provides a kind of ox IVF Embryos nutrient solution, the nutrient solution is included:
109-110mM NaCl,
2.9-3.1mM KCl,
26.0-26.5mM NaHCO3,
0.5-1.0mM MgCl26H2O,
1.0-1.3mM KH2PO3,
0.4mM Sodium Pyruvate,
1.5mM glucose,
5mM galactonic acid calcium,
2-3v/v% hyclone,
1mM Glu,
2v/v% essential amino acid,
1v/v% nonessential amino acid,
1-10mM glutathione and
It is used as the water with liquid solvent.
The ox IVF Embryos nutrient solution of any embodiment according to a first aspect of the present invention, the nutrient solution is included:
109mM NaCl,
3.1mM KCl,
26.2mM NaHCO3,
0.8mM MgCl26H2O,
1.19mM KH2PO3,
0.4mM Sodium Pyruvate,
1.5mM glucose,
5mM galactonic acid calcium,
2.5v/v% hyclone,
1mM Glu,
2v/v% essential amino acid,
1v/v% nonessential amino acid,
1-10mM glutathione and
It is used as the water with liquid solvent.
The ox IVF Embryos nutrient solution of any embodiment according to a first aspect of the present invention, wherein the required amino Acid is as the aqueous solution obtained by following amino acid is prepared with concentration in proportion:
L- R-genes 6.32g/L,
CYSTINE dihydrochloride 1.564g/L,
The water thing 2.1g/L of L- histidine monohydrochlorides one,
ILE 2.625g/L,
L-Leu 2.62g/L,
L lysine HCL 3.625g/L,
L-Methionine 0.755g/L,
L-phenylalanine 1.65g/L,
L-threonine 2.38g/L,
L-Trp 0.51g/L,
TYR 1.8g/L and
Valine 2.34g/L.
The ox IVF Embryos nutrient solution of any embodiment according to a first aspect of the present invention, wherein the nonessential ammonia Base acid is as the aqueous solution obtained by following amino acid is prepared with concentration in proportion:
ALANINE 0.89g/L,
The water thing 1.5g/L of L- asparagines one,
L-Aspartic acid 1.33g/L,
Pidolidone 1.47g/L,
Glycine 0.75g/L,
L-PROLINE 1.15g/L and
Serine 1.05g/L.
The ox IVF Embryos nutrient solution of any embodiment according to a first aspect of the present invention, wherein in the nutrient solution The concentration of glutathione is 1~7mM.
The ox IVF Embryos nutrient solution of any embodiment according to a first aspect of the present invention, wherein in the nutrient solution The concentration of glutathione is 3~5mM.
The ox IVF Embryos nutrient solution of any embodiment according to a first aspect of the present invention, wherein in the nutrient solution The concentration of glutathione is 1mM, 3mM, 5mM or 7mM.
The ox IVF Embryos nutrient solution of any embodiment according to a first aspect of the present invention, wherein in the nutrient solution The concentration of glutathione is 3mM or 5mM.
The ox IVF Embryos nutrient solution of any embodiment according to a first aspect of the present invention, wherein in the nutrient solution The concentration of glutathione is 3mM.
The ox IVF Embryos nutrient solution of any embodiment according to a first aspect of the present invention, wherein also including citric acid Sodium and maltose.In one embodiment, in the ox IVF Embryos nutrient solution sodium citrate and maltose concentration Respectively 0.03~0.05w/v% and 0.01~0.03w/v%.In one embodiment, the ox IVF Embryos training The concentration of sodium citrate and maltose is respectively 0.04w/v% and 0.02w/v% in nutrient solution.It has been had now surprisingly been found that, When adding micro sodium citrate and maltose simultaneously in ox IVF Embryos nutrient solution, hatching rate is favorably improved, And other indexs are unaffected.Hatching rate is the important evaluation index of quality of blastocysts, impregnable in other indexs Under the premise of improve hatching rate, it is significant for ox IVF Embryos training.Still further, it was discovered that, adding Plus in the case of this sodium citrate and maltose, the dense of hyclone in ox IVF Embryos nutrient solution can be greatly reduced Degree, and obtain essentially identical culture effect;Due in ox IVF Embryos nutrient solution hyclone relative to therein Other components (including sodium citrate and maltose) are prohibitively expensive, and the prime cost of ox IVF Embryos nutrient solution is Hyclone, it is extremely that the consumption of hyclone, which reduces for improving ox IVF Embryos culture efficiency, reduction production cost, Favourable.
Further, second aspect of the present invention provides a kind of side of efficiency culture ox IVF Embryos with raising Method, this method comprises the following steps:
Ox IVF Embryos are placed in ox IVF Embryos nutrient solution, 38.5 DEG C, it is 0.5%CO2,100% wet In vitro culture is carried out under the conditions of degree.
The method of any embodiment according to a second aspect of the present invention, wherein In vitro culture comprises the following steps:
(1) smart ovum is incubated after 8h altogether, takes out egg mother cell, using 1mg/ml hyaluronic acid collagenase treatment 3min, so Blown and beaten repeatedly using liquid-transfering gun afterwards, until cumulus cell comes off substantially;
(2) digestion of hyaluronidase is terminated using the TCM199 containing 10%FBS, is being added doubtful embryonated egg with mouth suction pipe Washed in embryo's early stage nutrient solution added with bovine serum albumin(BSA) (being generally also abbreviated as BSA) after 3 times, be put into embryo's early stage nutrient solution Cultivated in drop, condition of culture is 38.5 DEG C, 0.5%CO2,100% humidity;
(3) after 48h, the spilting of an egg to the embryo of 4-8 cells is moved into late embryogenesis nutrient solution, and (it is that ox of the invention is external Fertilized embryo nutrient solution) drop in cultivated (condition of culture be 38.5 DEG C, 0.5%CO2,100% humidity), the later half amounts of 48h are more Change late embryogenesis nutrient solution and continue to cultivate (38.5 DEG C, 5%CO2 gases, 95% humidity);
(4) timing was started for 0 day with the same day of being fertilized, counts blastocyst rate during to the 7th day, hatching is counted during to the 9th day Rate (it is percentage obtained by hatched blastocyst number divided by blastaea number).
Included in the method for any embodiment according to a second aspect of the present invention, the ox IVF Embryos nutrient solution:
109-110mM NaCl,
2.9-3.1mM KCl,
26.0-26.5mM NaHCO3,
0.5-1.0mM MgCl26H2O,
1.0-1.3mM KH2PO3,
0.4mM Sodium Pyruvate,
1.5mM glucose,
5mM galactonic acid calcium,
2-3v/v% hyclone,
1mM Glu,
2v/v% essential amino acid,
1v/v% nonessential amino acid,
1-10mM glutathione and
It is used as the water with liquid solvent.
Included in the method for any embodiment according to a second aspect of the present invention, the ox IVF Embryos nutrient solution:
109mM NaCl,
3.1mM KCl,
26.2mM NaHCO3,
0.8mM MgCl26H2O,
1.19mM KH2PO3,
0.4mM Sodium Pyruvate,
1.5mM glucose,
5mM galactonic acid calcium,
2.5v/v% hyclone,
1mM Glu,
2v/v% essential amino acid,
1v/v% nonessential amino acid,
1-10mM glutathione and
It is used as the water with liquid solvent.
It is described in the method for any embodiment according to a second aspect of the present invention, the ox IVF Embryos nutrient solution Essential amino acid is as the aqueous solution obtained by following amino acid is prepared with concentration in proportion:
L- R-genes 6.32g/L,
CYSTINE dihydrochloride 1.564g/L,
The water thing 2.1g/L of L- histidine monohydrochlorides one,
ILE 2.625g/L,
L-Leu 2.62g/L,
L lysine HCL 3.625g/L,
L-Methionine 0.755g/L,
L-phenylalanine 1.65g/L,
L-threonine 2.38g/L,
L-Trp 0.51g/L,
TYR 1.8g/L and
Valine 2.34g/L.
It is described in the method for any embodiment according to a second aspect of the present invention, the ox IVF Embryos nutrient solution Nonessential amino acid is as the aqueous solution obtained by following amino acid is prepared with concentration in proportion:
ALANINE 0.89g/L,
The water thing 1.5g/L of L- asparagines one,
L-Aspartic acid 1.33g/L,
Pidolidone 1.47g/L,
Glycine 0.75g/L,
L-PROLINE 1.15g/L and
Serine 1.05g/L.
The method of any embodiment according to a second aspect of the present invention, wherein the concentration of the nutrient solution GSH-PX activity is 1~7mM.
The method of any embodiment according to a second aspect of the present invention, wherein the concentration of the nutrient solution GSH-PX activity is 3~5mM.
The method of any embodiment according to a second aspect of the present invention, wherein the concentration of the nutrient solution GSH-PX activity is 1mM, 3mM, 5mM or 7mM.
The method of any embodiment according to a second aspect of the present invention, wherein the concentration of the nutrient solution GSH-PX activity is 3mM or 5mM.
The method of any embodiment according to a second aspect of the present invention, wherein the concentration of the nutrient solution GSH-PX activity is 3mM。
Also included in the method for any embodiment according to a second aspect of the present invention, the ox IVF Embryos nutrient solution Sodium citrate and maltose.In one embodiment, sodium citrate and maltose in the ox IVF Embryos nutrient solution Concentration be respectively 0.03~0.05w/v% and 0.01~0.03w/v%.In one embodiment, the ox is in vitro fertilization The concentration of sodium citrate and maltose is respectively 0.04w/v% and 0.02w/v% in embryo medium.
Any technical characteristic that any embodiment of either side or the either side of the present invention has is equally applicable Any embodiment of other any embodiments or other either sides, as long as they will not be conflicting, certainly mutual Between where applicable, if necessary can individual features be made with appropriate modification.Make to various aspects of the present invention with feature into one below The description of step.
All documents recited in the present invention, their full content is incorporated herein by reference, and if these are literary Offer expressed implication with it is of the invention inconsistent when, be defined by the statement of the present invention.In addition, the various terms that use of the present invention and Phrase has well known to a person skilled in the art general sense, nonetheless, the present invention remain desirable at this to these terms and Phrase is described in more detail and explained that the term and phrase referred to is if any inconsistent with common art-recognized meanings, with institute's table of the present invention The implication stated is defined.
The hyclone that the present invention is used readily can buy its from market and standardize commercial form, for example can be from each Plant Australia hyclone (article No. that Gibco companies are bought at agent:10099141), New Zealand's hyclone (article No.: 10091148), North America hyclone (article No.:16000044), Mexico's hyclone (article No.:10437028) etc., these business The price 500ml of product hyclone is most more than 8000 yuan, tire during in ox IVF Embryos nutrient solution of the present invention Cow's serum is cost significant contributor.In the experiment of the context of the invention, if not otherwise specified, hyclone used is Australia hyclone (article No. of Gibco companies:10099141).
The present invention has advantages below:The present invention in nutrient solution by adding certain density glutathione (Glutathione, GSH), can significantly improve the developmental potency of embryo in vitro.Differential dyeing is carried out to blastaea simultaneously, distinguishes interior Cell mass (Inner Cell Mass, ICM), trophocyte and apoptotic cell, compare total cell number, and calculate ICM cells Number/total cell number ratio and apoptosis rate, as a result show addition GSH test group be better than control group, improve blastocyst rate and Embryo quality, reduces the cost of produced in vitro embryo, and being applied to practice for ox IVF technologies provides experiment basis, can greatly accelerate Genetic breeding process.In addition, having had now surprisingly been found that, the ox IVF Embryos nutrient solution with inventive formulation is used Raising hatching rate can be significantly improved, and other indexs are unaffected, and hatching rate is that the important of quality of blastocysts is commented Valency index, improves hatching rate on the premise of other indexs are unaffected, has for the training of ox IVF Embryos It is significant.In addition, it has also been found that, in the case where adding this sodium citrate and maltose, ox can be greatly reduced The concentration of hyclone in IVF Embryos nutrient solution, and obtain essentially identical culture effect;Because ox is in vitro fertilization Hyclone is prohibitively expensive, ox relative to other components (including sodium citrate and maltose) therein in embryo medium The prime cost of IVF Embryos nutrient solution is hyclone, and the consumption reduction of hyclone is in vitro fertilization for improving ox Embryo Culture efficiency, reduction production cost are extremely advantageous.
Embodiment
The present invention can be further described by the following examples, however, the scope of the present invention is not limited In following embodiments.One of skill in the art, can be with it is understood that on the premise of without departing substantially from the spirit and scope of the present invention Various change and modification are carried out to the present invention.The present invention carries out general to the material and test method that are arrived used in experiment And/or specific description.Although for realize many materials used in the object of the invention and operating method be it is known in the art that But the present invention is still described in detail as far as possible herein.Unless otherwise specified, technological means used in embodiment is ability Conventional meanses known to field technique personnel, raw materials used is commercial goods.
Embodiment 1:The cultural method of ox IVF Embryos
First, reagent
Maturation culture solution:The LH of FSH, 10IU/ml containing 0.01IU/ml, 1 μ g/ml estradiol, 100ng/mlIGF, 50ng/ml EGF, 100U/ml penicillin, 100 μ g/ml streptomysins, the TCM-199 nutrient solutions of 10% hyclone.
Wash seminal fluid:KCl, 2.25mM of NaCl, 4.02mM containing 112.0mM CaCl22H2O, 0.52mM's Heparin, the 4mg/ of MgCl26H2O, 0.83mM KH2PO3,37.0mM NaHCO3,1.25mM Sodium Pyruvate, 10 μ g/ml Ml bovine serum albumin(BSA) (Bovine serum albumin, BSA), 10mM caffeine, 100U/ml penicillin, 100 μ The aqueous solution of g/ml streptomysin.
By seminal fluid:KCl, 2.25mM of NaCl, 4.02mM containing 112.0mM CaCl22H2O, 0.52mM's Heparin, the 4mg/ of MgCl26H2O, 0.83mM KH2PO3,37.0mM NaHCO3,1.25mM Sodium Pyruvate, 10 μ g/ml The aqueous solution of ml BSA, 100U/ml penicillin, 100 μ g/ml streptomysin.
Embryo's early stage nutrient solution:KCl, 26.2mM of NaCl, 3.1mM containing 109.5mM NaHCO3,0.8mM's MgCl26H2O, 1.19mM KH2PO3,0.4mM Sodium Pyruvate, 1.5mM glucose, 5mM galactonic acid calcium, 6mg/ Ml BSA, 1mM Glu, 2v/v% essential amino acids, the aqueous solution of 1v/v% nonessential amino acids.
Late embryogenesis nutrient solution:KCl, 26.2mM of NaCl, 3.1mM containing 109.5mM NaHCO3,0.8mM's MgCl26H2O, 1.19mM KH2PO3,0.4mM Sodium Pyruvate, 1.5mM glucose, 5mM galactonic acid calcium, 10v/ V% hyclones (Fetal bovine serum, FBS), 1mM Glu, 2v/v% essential amino acids, 1v/v% are non- The aqueous solution of necessary amino acid.
The essential amino acid be following amino acid in proportion/concentration prepare the aqueous solution, wherein, each amino acid content For:L- R-genes 6.32g/L, CYSTINE dihydrochloride 1.564g/L, L- histidine monohydrochloride one water thing 2.1g/L, L- are different Leucine 2.625g/L, L-Leu 2.62g/L, L lysine HCL 3.625g/L, L-Methionine 0.755g/L, L- phenylpropyl alcohol Propylhomoserin 1.65g/L, L-threonine 2.38g/L, L-Trp 0.51g/L, TYR 1.8g/L and Valine 2.34g/L.
The nonessential amino acid be following amino acid in proportion/concentration prepare the aqueous solution, wherein, each amino acid content For:The water thing 1.5g/L of ALANINE 0.89g/L, L- asparagine one, L-Aspartic acid 1.33g/L, Pidolidone 1.47g/ L, glycine 0.75g/L, L-PROLINE 1.15g/L and Serine 1.05g/L.
2nd, the collection of egg mother cell and maturation in vitro
1. gathering ox ovary from slaughterhouse, it is placed in 37 DEG C of physiological saline, laboratory is delivered in 3h.
2. ovary is cleaned 3-5 times using the physiological saline of the warm containing penicillin and streptomysin.
3. using vacuum peristaltic pump, the liquor folliculi in 5-8 millimeters of ovarian follicles is extracted with No. 18 syringe needles.
4. selecting oocyte-cumulus cell conjugate (COCs) under stereomicroscope, COCs is washed in egg-cleaning liquid Twice, it washed once in maturation culture solution.
5. the COCs of wash clean to be put into containing maturation culture solution and cover in four orifice plates of mineral oil, 50 pieces are cultivated per hole COCs, cultivates 22-24h.
3rd, it is in vitro fertilization
1. COCs is moved into 50 μ l fertilization drops from maturation culture solution, often drop puts 15 pieces of COCs.
2.38 DEG C of water-bath defrosting seminal fluid, wash seminal fluid using 5ml and 5min are centrifuged under the conditions of 500g;Supernatant is abandoned, 5ml is added Seminal fluid centrifugation 5min is washed, supernatant is abandoned, using seminal fluid adjustment sperm concentration is washed, it is about 2 × 10 to make sperm concentration7Individual/ml.
3. taking 50 μ l seminal fluid, 100 μ l drop is mixed into the fertilization drop containing COCs.
4.38.5 DEG C, smart ovum is incubated 8h altogether under 5%CO2 gases, 95% damp condition.
4th, In vitro culture
1. smart ovum is incubated after 8h altogether, egg mother cell is taken out, using 1mg/ml hyaluronic acid collagenase treatment 3min, then Blown and beaten repeatedly using liquid-transfering gun, until cumulus cell comes off substantially.
2. terminating the digestion of hyaluronidase using the TCM199 containing 10%FBS, doubtful embryonated egg is being added with mouth suction pipe Washed in embryo's early stage nutrient solution added with bovine serum albumin(BSA) after 3 times, be put into embryo's early stage culture drop and cultivated (38.5 DEG C, 5%CO2 gases, 95% humidity).
After 3.48h, the spilting of an egg to the embryo of 4-8 cells is moved to cultivated in late embryogenesis culture drop (38.5 DEG C, 5%CO2 gases, 95% humidity), the later half amounts of 48h change late embryogenesis nutrient solution and continue culture (38.5 DEG C, 5%CO2 gases, 95% humidity).
4. the same day started timing for 0 day to be fertilized, blastocyst rate is counted during to the 7th day, to statistics hatching rate at the 9th day (it is percentage obtained by hatched blastocyst number divided by blastaea number).
5th, the most suitable addition concentration screenings of GSH (glutathione) in late embryogenesis nutrient solution
1. the GSH for preparing 0.5M is used as liquid storage.
2. using GSH liquid storages, add and match somebody with somebody into late embryogenesis nutrient solution according to final concentration of 1mM, 3mM, 5mM, 7mM gradient The test group of late embryogenesis nutrient solution is made as, using non-addition group as control.
3. 48h respectively at culture, the 5th day, the 7th day, counts the cleavage egg and 8 cell rates, mulberry body rate of each group And blastocyst rate.
6th, embryo's differential dyeing
1. choosing the in vitro culture blastaea of the 7th day, 20min is fixed using 2% paraformaldehyde.
2. washed twice using the phosphate buffer (PBS-BSA) containing 0.5%BSA, be put into permeabilization liquid (50 μ l Triton, 5 μ l Tween 80s and 9.945ml PBS) in, room temperature places 30min.
3. using 2M hydrochloric acid room temperature treatment 20min, then using 100mM Tris-HCl room temperature treatment 10min, make CDX2 Albumen can be with an anti-binding.
4. being cleaned three times using PBS-BSA, blastaea is put into confining liquid (1ml lowlenthal serums, 5 μ l Tween 80s and 8.995ml PBS in), then room temperature closing 1h is transferred to 4 DEG C of refrigerator closings and stays overnight.
5. discarding confining liquid, CDX2 primary antibodies press 1 with confining liquid:200 dilutions, are incubated at room temperature 2h, discard primary antibody dilution, use PBS-BSA is cleaned 3 times, each 5min.
6.caspase-3 primary antibodies (being purchased from Cell Signaling Technology companies) press 1 with confining liquid:200 is dilute Release, be incubated at room temperature 2h, discard primary antibody dilution, cleaned with PBS-BSA 3 times, each 5min.
7. press 1 with confining liquid under the conditions of lucifuge:The 200 specific secondary antibodies of dilution CDX2 (being purchased from Sigma companies), at room temperature Avoid light place 1h.Secondary antibody dilution is discarded under the conditions of lucifuge, with PBS 3 times, each 5min.
8. press 1 with confining liquid under the conditions of lucifuge:The 200 specific secondary antibodies of dilution caspase-3 (are purchased from Life Technologies companies), avoid light place 1h at room temperature.Secondary antibody dilution is discarded under the conditions of lucifuge, with PBS 3 times, every time 5min。
9. add the 10 μ g/mL dye liquors of Hochest 33342 dye nucleus, room temperature effect 5min, under fluorescence microscope Observe and take pictures.
10. experiment is in triplicate, 10 blastaeas are randomly selected every time, are calculated apoptosis rate, ICM cell numbers/total cell number and are come Assess quality of blastocysts.
7th, data statistics
Experimental data uses the ANOVA programs in statistical software SAS V8 to be analyzed, Duncan ' s multiple- The significance of difference between range method of inspection determination processings, works as p<Significant difference is thought when 0.05.
8th, the developmental rate that GSH is remarkably improved bovine IVF embryo is added in late embryogenesis nutrient solution
Selection GSH adds concentration and screened for 0,1,3,5,7mM, by counting cleavage rates (that is, cleavage rates=embryonated egg Split number/embryonated egg number), 4-8 cell rates, mulberry body rate, blastocyst rate (that is, blastocyst rate=blastaea number/spilting of an egg embryo number).
As a result:
In late embryogenesis nutrient solution GSH add concentration be 0,1,3,5, the cleavage rates between five groups of 7mM and 4-8 cell rates it is equal Not notable (the p of difference>0.05), such as five groups cleavage rates are in the range of 0.80~0.88, five groups of 4-8 cell rates 0.67~ In the range of 0.79;
To morula developmental rate (i.e. mulberry body rate, morula rate=mulberries embryo number/spilting of an egg embryo number), 3mM and 5mM's GSH addition groups are all remarkably higher than control group and 5mM, 7mM experimental group (p<, but this two group difference of 3mM and 5mM is not notable 0.05) (p>0.05), this three groups mulberry body rate of such as control group and 5mM, 7mM is in the range of 0.46~0.49, and 3mM and 5mM this two The mulberry body rate of group is in the range of 0.61~0.63;
For blastocyst rate, 1mM, 3mM and 5mM GSH addition groups are all remarkably higher than control group (p<0.05), and 7mM GSH additions group is with compareing group difference not significantly (p>0.05), such as control group and the blastocyst rate of 7mM groups are respectively 0.32 He The blastocyst rate of 0.36,1mM group is 0.42,3mM and the blastocyst rate of 5mM groups is in the range of 0.46~0.51;These results with The result of CN103898046A tables 1 is basically identical.It can be seen that GSH is added in late embryogenesis nutrient solution can improve ox IVF embryos' Development rate.
9th, the quality of ox IVF Embryos can be improved by GSH being added in late embryogenesis nutrient solution
By counting total cell number, ICM cell numbers/total cell number, apoptosis rate (that is, apoptosis rate=apoptosis cell/total thin Born of the same parents number), the quality of blastocysts that comparative analysis GSH difference addition concentration groups are obtained.As a result it is as follows:
For total cell number, tetra- GSH concentration addition groups of 1mM, 3mM, 5mM, 7mM are all remarkably higher than control group (p< , and 3mM, 5mM and 7mM group are all remarkably higher than 1mM groups (p 0.05)<0.05), such as 0mM groups total cell number is that 42.4,1mM groups are total Cell number is 63.6, and 3mM, 5mM and 7mM group total cell number are in the range of 82~89;
For the ratio of ICM cell numbers/total cell number, 1mM additions group and the not notable (p of control group difference>0.05), 3mM, 5mM and 7mM groups are substantially less than control group (p<0.05) difference not significantly (p, but between this three groups>0.05), such as 1mM is added ICM cell numbers/total cell number ratio with control group is organized in the range of 0.41~0.48, the ICM cells of 3mM, 5mM and 7mM group Number/total cell number is than in the range of 0.27~0.34 in the range of 0.41~0.48;
For apoptosis rate, the not notable (p of difference between four addition groups and control group>0.05), 1mM, 3mM, 7mM GSH The apoptosis rate of addition group and control group is substantially less than 5mM addition groups (p<0.05);These results and the knot of CN103898046A tables 2 It is really basically identical.It can be seen that GSH addition is favorably improved the quality of ox IVF Embryos.
Tenth, the most suitable addition concentration that GSH is added in late embryogenesis nutrient solution is 3mM
In four experimental groups, the morula rate and blastocyst rate that 3mM and 5mM GSH additions group is obtained are all remarkably higher than pair According to group and other experimental group (p<0.05);But the morula rate of 3mM GSH addition groups and 5mM GSH addition group differences do not show Write (p>, but blastocyst rate is significantly higher than 5mM addition groups (p 0.05)<0.05), it is seen that the ox IVF embryos in 3mM GSH addition groups The developmental rate of tire is highest, therefore GSH optimum concentration is 3mM GSH addition groups.
The present embodiment has filtered out most suitable addition concentration, drastically increases blastaea production efficiency, and blastocyst rate is carried by 30% Up to 50%;Embryo quality is estimated and displayed that, quality of blastocysts is also superior to control group after addition this product.
Embodiment 2:The cultural method of ox IVF Embryos
With reference to embodiment 1, different is only that late embryogenesis nutrient solution composition therein is changed to:
109mM NaCl,
3.1mM KCl,
26.0mM NaHCO3,
0.5mM MgCl26H2O,
1.3mM KH2PO3,
0.4mM Sodium Pyruvate,
1.5mM glucose,
5mM galactonic acid calcium,
10v/v% hyclone,
1mM Glu,
2v/v% essential amino acid,
1v/v% nonessential amino acid,
3mM glutathione and
It is used as the water with liquid solvent.
Tested according to embodiment 1, as a result glutathione group basic phase of the indices with using 3mM in embodiment 1 Together, for example morula rate is that 0.633, blastocyst rate is 0.508, apoptosis rate 0.050 in the present embodiment.
Embodiment 3:The cultural method of ox IVF Embryos
With reference to embodiment 1, different is only that late embryogenesis nutrient solution composition therein is changed to:
110mM NaCl,
2.9mM KCl,
26.5mM NaHCO3,
1.0mM MgCl26H2O,
1.0mM KH2PO3,
0.4mM Sodium Pyruvate,
1.5mM glucose,
5mM galactonic acid calcium,
10v/v% hyclone,
1mM Glu,
2v/v% essential amino acid,
1v/v% nonessential amino acid,
3mM glutathione and
It is used as the water with liquid solvent.
Tested according to embodiment 1, as a result glutathione group basic phase of the indices with using 3mM in embodiment 1 Together, for example morula rate is that 0.636, blastocyst rate is 0.521, apoptosis rate 0.050 in the present embodiment.
Embodiment 4:The cultural method of ox IVF Embryos
With reference to embodiment 1, different is only that late embryogenesis nutrient solution composition therein is changed to:
109mM NaCl,
3.1mM KCl,
26.0mM NaHCO3,
0.5mM MgCl26H2O,
1.3mM KH2PO3,
0.4mM Sodium Pyruvate,
1.5mM glucose,
5mM galactonic acid calcium,
10v/v% hyclone,
1mM Glu,
2v/v% essential amino acid,
1v/v% nonessential amino acid,
3mM glutathione,
Sodium citrate 0.04w/v%,
Maltose 0.02w/v% and
It is used as the water with liquid solvent.
As a result show, in terms of the indices that embodiment 1 is investigated, the present embodiment 4 is with using 3mM's in embodiment 1 Glutathione group is essentially identical, such as morula rate is that 0.634, blastocyst rate is 0.518, apoptosis rate 0.049 in the present embodiment 4; In addition, counting hatching rate at the 9th day, as a result show the present embodiment hatching rate up to 71.6%;Other statistics hair Existing, embodiment 1~3 is all using hatching rate in the experiment of 3mM glutathione in the range of 36~39%.
In the experiment of a supplement, with reference to above-described embodiment 4, different is only that sodium citrate concentration is changed to 0.03w/ V% or 0.05w/v% (but maltose is still 0.02w/v%), in two experiments indices with the basic phase of above-described embodiment 4 Together, such as hatching rate is up to 70.2~71.4% scopes.It is different with reference to above-described embodiment 4 in the experiment of a supplement Only it is that maltose concentration is changed to 0.01w/v% or 0.03w/v% (but sodium citrate is still 0.04w/v%), it is each in two experiments Index is essentially identical with above-described embodiment 4, and such as hatching rate is up in the range of 71.6~72.6%;This result table It is bright, it can effectively improve hatching rate after the appropriate sodium citrate of supplement addition and maltose in late embryogenesis nutrient solution. In the experiment of a supplement, with reference to above-described embodiment 4, different is only that (but maltose is still without sodium citrate 0.02w/v%), or it is different be only without maltose (but sodium citrate is still 0.04w/v%), in two experiments except Indices beyond hatching rate are essentially identical with above-described embodiment 4, but hatching rate is significantly small, 38 (p in the range of~40%<0.05, with significant difference);This result shows, only add both sodium citrate and maltose it Hatching rate can not be effectively improved for the moment.
Embodiment 5:The cultural method of ox IVF Embryos
With reference to embodiment 1, different is only that late embryogenesis nutrient solution composition therein is changed to:
109mM NaCl,
3.1mM KCl,
26.0mM NaHCO3,
0.5mM MgCl26H2O,
1.3mM KH2PO3,
0.4mM Sodium Pyruvate,
1.5mM glucose,
5mM galactonic acid calcium,
2.5v/v% hyclone,
1mM Glu,
2v/v% essential amino acid,
1v/v% nonessential amino acid,
3mM glutathione,
Sodium citrate 0.04w/v%,
Maltose 0.02w/v% and
It is used as the water with liquid solvent.
As a result show, in terms of the indices that embodiment 1 is investigated, the present embodiment 5 is with using 3mM's in embodiment 1 Glutathione group is essentially identical, such as morula rate is that 0.628, blastocyst rate is 0.522, apoptosis rate 0.048 in the present embodiment 5; In addition, counting hatching rate at the 9th day, as a result show the present embodiment hatching rate up to 70.2%;Other statistics hair Existing, embodiment 1~3 is all using hatching rate in the experiment of 3mM glutathione in the range of 36~39%.
In the experiment of a supplement, with reference to above-described embodiment 5, different is only that sodium citrate concentration is changed to 0.03w/ V% or 0.05w/v% (but maltose is still 0.02w/v%), in two experiments indices with the basic phase of above-described embodiment 5 Together, such as hatching rate is up to 69.7~71.8% scopes.It is different with reference to above-described embodiment 5 in the experiment of a supplement Only it is that maltose concentration is changed to 0.01w/v% or 0.03w/v% (but sodium citrate is still 0.04w/v%), it is each in two experiments Index is essentially identical with above-described embodiment 5, and such as hatching rate is up in the range of 71.8~72.4%;This result table It is bright, it can effectively improve hatching rate after the appropriate sodium citrate of supplement addition and maltose in late embryogenesis nutrient solution. In the experiment of a supplement, with reference to above-described embodiment 5, different is only that (but maltose is still without sodium citrate 0.02w/v%), or it is different be only without maltose (but sodium citrate is still 0.04w/v%), in two experiments except Indices beyond hatching rate are essentially identical with above-described embodiment 5, but hatching rate is significantly small, 36 (p in the range of~39%<0.05, with significant difference);This result shows, only add both sodium citrate and maltose it Hatching rate can not be effectively improved for the moment.In the experiment of a supplement, with reference to above-described embodiment 5, different is only not add Plus sodium citrate and maltose, the indices in experiment in addition to hatching rate are essentially identical with above-described embodiment 5, It is 31.3% (p but hatching rate is significantly small<0.05, with significant difference);This result shows, by tire ox If blastaea can not be effectively improved during without both sodium citrate and maltose in the case that serum-concentration is down to 2.5v/v% Incubation rate.In the experiment of a supplement, with reference to above-described embodiment 5, different be only hyclone concentration be changed to 2v/v% or 3v/v%, indices are essentially identical with above-described embodiment 5 in two experiments, and such as hatching rate is up to 70.3~71.7% In the range of;This result shows, is supplemented in late embryogenesis nutrient solution in the case of adding appropriate sodium citrate and maltose, i.e., Make to remain able to effectively improve hatching rate when hyclone concentration is down into 2~3v/v% scope, now tire ox blood The consumption of clear this expensive reagent is the 20~30% of the consumption of embodiment 1, and the cost of increased sodium citrate and maltose It is low-down.
Although above the present invention is described in detail with a general description of the specific embodiments, On the basis of the present invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Cause This, these modifications or improvements, belong to the scope of protection of present invention without departing from theon the basis of the spirit of the present invention.

Claims (10)

1. a kind of ox IVF Embryos nutrient solution, the nutrient solution is included:109-110mM NaCl, 2.9-3.1mM KCl, 26.0-26.5mM NaHCO3,0.5-1.0mM MgCl26H2O, 1.0-1.3mM KH2PO3,0.4mM Sodium Pyruvate, 1.5mM glucose, 5mM galactonic acid calcium, 2-3v/v% hyclone, 1mM Glu, 2v/v% it is required Amino acid, 1v/v% nonessential amino acid, 1-10mM glutathione and be used as match somebody with somebody liquid solvent water.
2. ox IVF Embryos nutrient solution according to claim 1, the nutrient solution is included:109mM NaCl, 3.1mM's KCl, 26.2mM NaHCO3,0.8mM MgCl26H2O, 1.19mM KH2PO3,0.4mM Sodium Pyruvate, 1.5mM Glucose, 5mM galactonic acid calcium, 2.5v/v% hyclone, 1mM Glu, 2v/v% essential amino acid, 1v/v% nonessential amino acid, 1-10mM glutathione and be used as match somebody with somebody liquid solvent water.
3. ox IVF Embryos nutrient solution according to claim 1, wherein the essential amino acid be by following amino acid by The aqueous solution obtained by ratio and concentration preparation:L- R-genes 6.32g/L, CYSTINE dihydrochloride 1.564g/L, L- salt The sour water thing 2.1g/L of histidine one, ILE 2.625g/L, L-Leu 2.62g/L, L lysine HCL 3.625g/ L, L-Methionine 0.755g/L, L-phenylalanine 1.65g/L, L-threonine 2.38g/L, L-Trp 0.51g/L, TYR 1.8g/L and Valine 2.34g/L.
4. ox IVF Embryos nutrient solution according to claim 1, wherein the nonessential amino acid is by following amino acid The aqueous solution obtained by being prepared in proportion with concentration:Water thing 1.5g/L, L- asparagus fern of ALANINE 0.89g/L, L- asparagine one Propylhomoserin 1.33g/L, Pidolidone 1.47g/L, glycine 0.75g/L, L-PROLINE 1.15g/L and Serine 1.05g/L.
5. ox IVF Embryos nutrient solution according to claim 1, wherein the concentration of the nutrient solution GSH-PX activity be 1~ 7mM;For example, 3~5mM;For example, 1mM, 3mM, 5mM or 7mM;For example, 3mM or 5mM;For example, 3mM.
6. ox IVF Embryos nutrient solution according to claim 1, wherein also including sodium citrate and maltose;For example, institute The concentration for stating sodium citrate and maltose in ox IVF Embryos nutrient solution be respectively 0.03~0.05w/v% and 0.01~ 0.03w/v%;For example, the concentration of sodium citrate and maltose is respectively 0.04w/ in the ox IVF Embryos nutrient solution V% and 0.02w/v%.
7. in the method for the efficiency culture ox IVF Embryos of raising, this method comprises the following steps:By ox embryo in vitro fertilization Tire is placed in ox IVF Embryos nutrient solution, and embryo is carried out under 38.5 DEG C, 0.5%CO2,100% damp condition and is trained in vitro Support.
8. method according to claim 7, wherein In vitro culture comprise the following steps:
(1) smart ovum is incubated after 8h altogether, is taken out egg mother cell, using 1mg/ml hyaluronic acid collagenase treatment 3min, is then made Blown and beaten repeatedly with liquid-transfering gun, until cumulus cell comes off substantially;
(2) using containing 10%FBS TCM199 terminate hyaluronidase digestion, with mouth suction pipe by doubtful embryonated egg added with Wash after 3 times, be put into embryo's early stage culture drop in embryo's early stage nutrient solution of bovine serum albumin(BSA) (being generally also abbreviated as BSA) Cultivated, condition of culture is 38.5 DEG C, 0.5%CO2,100% humidity;
(3) after 48h, the spilting of an egg to the embryo of 4-8 cells is moved into late embryogenesis nutrient solution, and (it is that ox of the invention is in vitro fertilization Embryo medium) (condition of culture is 38.5 DEG C, 0.5%CO2,100% humidity) is cultivated in drop, 48h later half amounts replacing embryo Tire later stage nutrient solution simultaneously continues to cultivate (38.5 DEG C, 5%CO2 gases, 95% humidity);
(4) timing was started for 0 day with the same day of being fertilized, blastocyst rate is counted during to the 7th day, to statistics hatching rate at the 9th day.
9. method according to claim 7, wherein:
Included in the ox IVF Embryos nutrient solution:109-110mM NaCl, 2.9-3.1mM KCl, 26.0-26.5mM NaHCO3,0.5-1.0mM MgCl26H2O, 1.0-1.3mM KH2PO3,0.4mM Sodium Pyruvate, 1.5mM grape Sugar, 5mM galactonic acid calcium, 2-3v/v% hyclone, 1mM Glu, 2v/v% essential amino acid, 1v/ V% nonessential amino acid, 1-10mM glutathione and be used as match somebody with somebody liquid solvent water;Or
Included in the ox IVF Embryos nutrient solution:109mM NaCl, 3.1mM KCl, 26.2mM NaHCO3, 0.8mM MgCl26H2O, 1.19mM KH2PO3,0.4mM Sodium Pyruvate, 1.5mM glucose, 5mM galactonic acid Calcium, 2.5v/v% hyclone, 1mM Glu, 2v/v% essential amino acid, 1v/v% nonessential amino Acid, 1-10mM glutathione and as match somebody with somebody liquid solvent water.
10. method according to claim 7, wherein:
The essential amino acid in the ox IVF Embryos nutrient solution is prepared in proportion with concentration by following amino acid The aqueous solution of gained:L- R-genes 6.32g/L, the water thing of CYSTINE dihydrochloride 1.564g/L, L- histidine monohydrochloride one 2.1g/L, ILE 2.625g/L, L-Leu 2.62g/L, L lysine HCL 3.625g/L, L-Methionine 0.755g/L, L-phenylalanine 1.65g/L, L-threonine 2.38g/L, L-Trp 0.51g/L, TYR 1.8g/L and Valine 2.34g/L;
The nonessential amino acid in the ox IVF Embryos nutrient solution is matched somebody with somebody in proportion with concentration by following amino acid The aqueous solution obtained by system:The water thing 1.5g/L of ALANINE 0.89g/L, L- asparagine one, L-Aspartic acid 1.33g/L, L- Glutamic acid 1.47g/L, glycine 0.75g/L, L-PROLINE 1.15g/L and Serine 1.05g/L;
Sodium citrate and maltose are also included in the ox IVF Embryos nutrient solution, such as described ox IVF Embryos training The concentration of sodium citrate and maltose is respectively 0.03~0.05w/v% and 0.01~0.03w/v%, such as described ox in nutrient solution The concentration of sodium citrate and maltose is respectively 0.04w/v% and 0.02w/v% in IVF Embryos nutrient solution;And/or
The concentration of the nutrient solution GSH-PX activity is 1~7mM, for example, 3~5mM, for example, 1mM, 3mM, 5mM or 7mM, example Such as it is 3mM or 5mM, for example, 3mM.
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CN107523538A (en) * 2017-09-30 2017-12-29 江苏农林职业技术学院 A kind of placenta in vitro culture method
CN107523538B (en) * 2017-09-30 2020-08-25 江苏农林职业技术学院 In-vitro culture method for embryo body
CN108728404A (en) * 2018-06-07 2018-11-02 天津博裕力牧科技有限公司 Ox live body or the method for in vitro oocyte collection IVF Embryos culture
CN108728401A (en) * 2018-06-07 2018-11-02 天津博裕力牧科技有限公司 The method of IVF of Oocyte in Bovine Embryo Culture and culture medium used
CN108753689A (en) * 2018-06-07 2018-11-06 天津博裕力牧科技有限公司 The method of ox IVF Embryos culture
CN108753689B (en) * 2018-06-07 2021-09-07 天津博裕力牧科技有限公司 Method for culturing bovine in-vitro fertilized embryo
CN108728401B (en) * 2018-06-07 2021-09-10 天津博裕力牧科技有限公司 Method for culturing bovine oocyte in vitro fertilization embryo and used culture medium
CN108728404B (en) * 2018-06-07 2021-09-10 天津博裕力牧科技有限公司 Method for culturing in vitro fertilization embryo of bovine living body or in vitro collected oocyte
CN109321451A (en) * 2018-10-11 2019-02-12 常州市环境监测中心 It is a kind of can multiple groups experiment zebrafish embryo acute toxicity detection kit
CN109321451B (en) * 2018-10-11 2021-08-10 常州市环境监测中心 Zebra fish embryo acute toxicity detection kit for multiple groups of experiments
CN114507636A (en) * 2018-12-06 2022-05-17 中国农业大学 Method for improving animal embryo development efficiency
CN109628382A (en) * 2019-01-18 2019-04-16 西北农林科技大学 A kind of culture solution and cultural method of the development quality improving ox embryo in vitro fertilization

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