CN103392672A - Method for cultivating novel Chinese polyembryony mutton Merino strain - Google Patents
Method for cultivating novel Chinese polyembryony mutton Merino strain Download PDFInfo
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Abstract
The invention discloses a method for cultivating a novel Chinese polyembryony mutton Merino strain. The method for cultivating the novel Chinese polyembryony mutton Merino strain includes performing hybridization on Chinese fine-wool ewes and Booroola Merino rams to obtain a Chinese X Booroola hybridization generation F1; selecting excellent rams and ewes in the Chinese X Booroola hybridization generation F1 to perform fixed cross breeding on the excellent rams and ewes to obtain a Chinese X Booroola cross breeding generation F1; performing hybridization on Chinese fine-wool ewes and South African mutton Merino rams to obtain a Chinese X Sound African hybridization generation F1; selecting excellent ewes in the Chinese X Sound African hybridization generation F1 and performing hybridization on the selected excellent ewes in the Chinese X Sound African hybridization generation F1 and South African mutton Merino rams to obtain a Chinese X Sound African hybridization generation F2; respectively performing hybridization on excellent rams and ewes in the Chinese X Booroola cross breeding generation F1 and excellent rams and ewes in the Chinese X South African cross breeding generation F2 to obtain a Chinese X South African X Booroola hybridization generation F1; selecting excellent rams and ewes, which carry a B+ genotype, in the Chinese X South African X Booroola hybridization generation F1 to perform fixed cross breeding on the Chinese X South African X Booroola hybridization generation F1 to obtain a Chinese X South African X Booroola cross breeding generation F1 so as to finally obtain the novel Chinese polyembryony mutton Merino strain.
Description
Technical field
The present invention relates to a kind of animal cultivation technology, the present invention relates to exactly the breeding method of Chinese meat polyembryony merino sheep new lines.
Background technology
The polyembryony Mutton Merino is unique prolificacy fine wool sheep kind that high-quality wool, mutton can be provided simultaneously, be devoted to the production domesticization of polyembryony Mutton Merino, not only can stablize the production of high-quality fine wool, save foreign exchange, the raw material supplying of effective guarantee China wool spinning processing enterprise, also can promote mutton production, will help to alleviate high, the in short supply situation of mutton valency, meet the growth requirement of fine wool sheep in China fully.approximately 3,000 ten thousand fine wool sheep that China has at present are basically on 10 fine wool sheep kind bases of the 1950's～1980 oneself cultivation, according to the market demand, successively by introducing Australian Merino, the German Muttoo Merino sheep, the kind that contains different merino sheep genes that forms after the merino sheep inter breed crossings such as South Africa merino sheep improvement, strain and hybrid sheep etc., they are in the quantity and the quality that improve China's fine wool and mutton, meet the about demand of 400,000 tons of high-quality fine wools (approximately 100,000 tons of domestic fine wool years in textile industry year, approximately 300,000 tons of import high-quality fine wool years) and the mutton aspects such as supply falls short of demand play an important role, and established solid foundation for the production domesticization of the meat polyembryony merino sheep of China.But, up to the present, can domesticize fully and can subrogate country outside China's polyembryony Mutton Merino new varieties with independent intellectual property right of polyembryony Mutton Merino be still blank.
The South African Mutton merino is a meat hair dual-purpose type kind, have good high-quality wool (wool fiber diameter 19.1～21.0 μ m, staple length 8.0cm, ewe clip 4～4.5 kg, adult ewe body weight 75～80 kg grow up) and high feed conversion rate (3.91:1) production capacity, meet the current requirement to Mutton Merino hair, quality of mutton of China, but reproduction rate lower (150%), and polyembryony gene genetic mechanism it be unclear that, and is difficult to carry out seed selection with traditional breeding method and fixes.The Bu Lula merino is that first finds that high reproductive rate major gene resistance (FecB) has high-quality fine wool (wool fiber diameter 19.1～21.0 μ m) kind of high reproductive rate (230%) in the world, and application FecB gene molecule marker assisted Selection technology can be carried out the seed selection of polyembryony gene and be fixed.Therefore with South Africa merino, Bu Lula merino and 11 fine wool sheep kinds of for China, cultivating, hybridize, the proterties such as the degeneration-resistant proterties of the important economical traits such as South Africa merino, Bu Lula merino high-quality, high yield and Chinese fine wool sheep, environmental suitability are carried out polymerization, cultivate the Chinese polyembryony Mutton Merino new varieties that adapt to China's different ecological environment, realize the production domesticization of polyembryony Mutton Merino.
Summary of the invention
The invention provides the breeding method of a kind of China meat polyembryony merino sheep new lines.
The breeding method of China of the present invention meat polyembryony merino sheep new lines is:
1) Chinese fine wool sheep ewe and Bu Lula merino sheep ram are hybridized, adopt artificial insemination method, obtain Chinese fine wool sheep X Bu Lula merino sheep (hereinafter to be referred as hybridization F middle X cloth)
1In generation, described Chinese fine wool sheep is any in Gansu Alpine fine wool sheep, Finewool, Chinese Merino, Xinjiang Merino, Ao Han fine wool sheep, northeast fine wool sheep, Erdos fine wool sheep, Shanxi fine wool sheep, Inner Mongolia Fine Wool, Xinjiang Merino;
2) centering X cloth hybridization F
1Select outstanding male and female sheep to carry out the FecB genetic test in generation, application FecB gene molecule marker assisted Selection technology is selected and remain and is carried the genotypic outstanding male and female sheep of B+;
3) will carry X cloth hybridization F in the genotypic outstanding male and female sheep of B+
1Fix for carrying out traversed by, obtain middle X cloth traversed by F
1A generation, application BLUP genetic evaluation technology is X cloth traversed by F therefrom
1Select outstanding male and female sheep in generation, the more outstanding male and female sheep of selecting is carried out the FecB genetic test, application FecB gene molecule marker assisted Selection technology is selected and remain and is carried the genotypic outstanding male and female sheep of B+, BB;
4) Chinese fine wool sheep ewe and South African Mutton profit slave sheep ram hybridizes, and adopts artificial insemination method, obtains Chinese fine wool sheep X South African Mutton merino sheep (hereinafter to be referred as middle X southern) hybridization F
1In generation, application BLUP genetic evaluation technology is from F
1Select outstanding ewe in generation;
5) therefrom outstanding ewe and the South African Mutton merino ram selected in generation of X south F1 carries out grading up, obtains middle X south and hybridizes F
2In generation, application BLUP genetic evaluation technology is X south hybridization F therefrom
2Select outstanding male and female sheep in generation;
6) will carry the genotypic middle X cloth traversed by F of B+, BB
1In generation,, outstanding male and female sheep hybridized F with middle X south respectively
2In generation, outstanding male and female sheep hybridizes, and obtains middle X south X cloth hybridization F
1In generation,, from F
1Select outstanding male and female sheep in generation;
7) centering X south X cloth hybridization F
1Select outstanding male and female sheep to carry out the FecB genetic test in generation, application FecB gene molecule marker assisted Selection technology is selected and remain and is carried the genotypic outstanding male and female sheep of B+;
8) will carry X cloth hybridization F in X south in the genotypic outstanding male and female sheep of B+
1Fix for carrying out traversed by, obtain middle X south X cloth traversed by F
1A generation, therefrom X south X cloth traversed by F
1Select outstanding male and female sheep in generation;
9) centering X south X cloth traversed by F
1Select outstanding male and female sheep to carry out the FecB genetic test in generation, FecB gene molecule marker assisted Selection technology is selected and remain and is carried the genotypic outstanding male and female sheep of B+, BB;
10) in, an X cloth traversed by generation in X south is numerous through the seed selection expansion of continuous three generations again, obtains the meat merino new lines of Chinese polyembryony.
To adopt Chinese fine wool sheep and South African Mutton profit slave sheep, Bu Lula merino sheep to carry out a series of hybridization and finally obtain the meat merino new lines of Chinese polyembryony in method of the present invention.
The South African Mutton merino is a meat hair dual-purpose type kind.The South African Mutton merino sheep is acerous, and body is large and wide dark, and chest is open, and buttocks is broad, and shank is solid and sturdy.Male and female is all acerous, by hair white, homogeneity, do not contain kemp, 21～23 microns of wool average fineness (64), 4.5～6 kilograms of adult ram clips, 3.4～4.5 kilograms of adult ewe clips, scouring yield 65%～70%, long 82 millimeters naturally of scopulars, coefficient of fineness variation 19.0%, the comfortable coefficient 94.0% of wool fibre.120～130 kilograms of the ram body weight of growing up, 75～80 kilograms of the ewe body weight of growing up.The Out of season breeding, under grazing condition, average lambing percentage 150%, under well-fed condition, lambing percentage can reach 250%.Under the extensive raising condition in South Africa, the ewe average daily gain is 350g, average 35 kilograms of 100 days old lamb live-weights, and under the drylot feeding condition, the public Lamb liveweights of 100 ages in days can reach 56 kilograms.South African Mutton merino feed conversion rate is high, and at lamb drylot feeding fattening stage, feed conversion rate is 3.91:1.South African Mutton merino lactation amount is high, and ewe disposition is docile, and maternal instinct is good, and lactation amount reached 4.8 liters in the highest day, under normal circumstances can 2～3 lambs of lactation, and be the desirable paternal kind of mutton sheep.
The Bu Lula merino sheep derives from the New South Wales,Australia Southern Plateau, by Seears brother and Australian Union's science and the common incubation of industrial research tissue (CSIRO) of Bu Lula Yang Chang.Seears brother is very interested in the prlificacy of merino sheep, starts to select to produce the ewe cohort of triplet from nineteen forty-seven, and 200～300 ewe polyembryony colonies were approximately arranged by 1958, and lambing percentage is up to 190%.In the time of 1958, the same tire 1 that the animal heredity section of CSIRO has accepted Seears brother donations produces 1 ram of 5 lambs, and they have bought in Seears brother pasture one full year of life 12 of the ewes with tire 3～4 lambs, 2 years old ewe of 1 primiparity 3 lamb subsequently.1959 and nineteen sixty, it is that the rams of 4 lambs and 1 are the ram of 6 lambs with tire with tire that CSIRO has accepted respectively again 1 of Seears brother donations, and has bought the tire of 2～6 years old from this pasture and produced 91 ewes of many lambs, has formed thus the breeding group and has carried out breeding.The CSIRO discovery, the prlificacy of Bu Lula merino sheep is determined by single key-gene FecB.Therefore, select to concentrate on ovulation rate and tire prolification, thereby accelerated breeding process.The Bu Lula merino sheep belongs to middle wool type (20～22 microns of wool diameter are rolled over 64～66) merino sheep, has the characteristics of this type sheep, and clip is identical with Australian Merino with wool quality, and difference is that reproduction rate is high.Ram has spirality greatly and the angle of extension, and ewe is acerous.Use the laparoscope observed result, 3.39 of the number of eggs ovulated average out to of 1.5 years old Bu Lula merino ewe, the ewe of 2.5～6.5 years old is 3.72, maximum is 11.According to 522 Bu Lula merino ewes (2～7 years old) are added up, 2.29 of tire lambing average out to.
Breeding method of the present invention cultivate the Chinese meat polyembryony merino sheep new lines that obtains kept the high-quality wool performance strong stress resistance of Chinese fine wool sheep, to the strong advantage of Chinese different ecological environmental suitability, and both had the good high reproductive rate characteristic of Bu Lula merino sheep, had again the desirable meat physical characteristic of South African Mutton merino sheep.This new lines is compared with Chinese fine wool sheep, lambing percentage is high, can reach more than 150%, grow fast, physique is large, more than the ram body weight of growing up reaches 90kg, more than the ewe body weight reached 55kg, meat productivity was high, and meat is good, and strong adaptability, be suitable for herding, half drylot feeding and development high-quality wool and fattening production.
Description of drawings
Accompanying drawing 1 is fixedly schematic diagram of China of the present invention meat polyembryony merino sheep new lines selection cross and traversed by.
Embodiment
The present invention is below in conjunction with the embodiment explanation.
One, the breeding method of the meat polyembryony merino sheep of a kind of China new lines comprises the following steps:
(1) to a kind of fine wool sheep in Chinese fine wool sheep---Gansu Alpine fine wool sheep, the Bu Lula merino sheep, the South African Mutton merino sheep is identified and is assessed, the evaluation of ewe and BULP genetic evaluation content comprise the appearance build, age, body weight, reproductive performance, wool performance (wool production, wool fiber diameter, scouring yield), the evaluation of ram and assessment content comprise the appearance build, age, body weight, reproductive performance, particularly, the selection criteria of Gansu Alpine fine wool sheep ewe is: physique is larger, physique is solid, hoof matter is fine and close, body body structure is well-balanced, width of chest is dark, carry on the back straight, rear quarters is plentiful, four limbs are solid, rectify strong.Ram has the spirality angle, and neck has 1-2 horizontal gauffers; The ewe majority is acerous, and neck has vertical dewlap.Pure white by hair, closed is good, and more than density was medium, body body hair and belly wool all were the scopular structure, and capillus and given birth to the informer.More than 80mm, average fibre diameter≤20.0 μ m, by the whole good uniformity of hair by mao mao clump natural length (12 months); Crooked clear, be normally curved; Oil sweat is moderate, accounts for scopular height 〉=50%, and majority is white in color or milky; Scouring yield is more than 45%.Under natural grazing condition, ram hogg(et) average weight 39kg, clip 3.5kg, clean sourced fleece weight 1.6 kg, the average weight of eweing hogg 32kg, clip 3.0kg, clean sourced fleece weight 1.4kg; Adult ram average weight 80kg, clip 7.0kg, clean sourced fleece weight 3.2 kg, ewe average weight 42kg, clip 3.5kg, clean sourced fleece weight 1.6kg grow up; The lambing percentage of multiparity ewe is more than 110%.
Bu Lula merino sheep ram selection criteria: Bu Lula merino sheep build is similar to rectangle, short legs, and body is wide, and back is straight, the rear quarters fleshiness; The ram neck has 1～3 zoon or incomplete horizontal gauffer, and ewe has flourishing vertical gauffer.The fleece of this kind sheep, the scopular well-formed, wool density is large, and fineness is even, oily sweat white, crooked evenly neat and obvious, gloss is good.Wool covers head to two line, and forelimb is to wrist joint or below wrist joint, and hind leg is to hock joint or below hock joint.More than 80mm, average fibre diameter≤20.0 μ m, by the whole good uniformity of hair by mao mao clump natural length (12 months); Crooked clear, be normally curved; Oil sweat is moderate, accounts for scopular height 〉=50%, and majority is white in color or milky; Scouring yield is more than 45%.The ram average weight of growing up is not less than 60kg,, through the FecB genetic test, carries BB genotype homozygote;
South African Mutton merino ram selection criteria: acerous, body is large and wide dark, and chest is open, and buttocks is broad, and shank is solid and sturdy.Male and female is all acerous,, by hair white, homogeneity, does not contain kemp, and more than 80mm, average fibre diameter≤20.0 μ m, by the whole good uniformity of hair by mao mao clump natural length (12 months); Crooked clear, be normally curved; Oil sweat is moderate, accounts for scopular height 〉=50%, and majority is white in color or milky; Scouring yield is more than 45%.120～130 kilograms of the ram body weight of growing up.The Out of season breeding, under grazing condition, average lambing percentage 150%.
(2) select 2500 Gansu Alpine fine wool sheep breeding group ewes and be divided into 2 groups, every group 1250, hybridize with Bu Lula merino sheep, South African Mutton merino ram every year respectively, adopt artificial insemination method, obtain middle X cloth (Chinese fine wool sheep X Bu Lula merino sheep) first familiar generation, middle X south (Chinese fine wool sheep X South African Mutton merino sheep) hybridization F
1Generation, from approximately 2000 merely hit X cloth, X south hybridization F
1X cloth in 1200 conducts, middle X south hybridization F select and remain in the godmother lamb
1For the standby ewe, X cloth, middle X south hybridization F during 600 the outstanding ewes of selecting and remain finally form
1For the basis female flock of sheep; Therefrom F is hybridized in X cloth, middle X south
1Consider mainly while selecting and remain outstanding ewe in generation that bodily form appearance, birth weight, weaning weight, age in June weigh, build, the Chinese fine wool sheep feature of head dummy trend, compact by the hair knot structure, physique is large, bridge of the nose protuberance, and back of the body waist is straight, the meat bodily form is apparent in view, birth weight 3.5kg is above, weaning weight 25kg above, more than age in June heavy 32kg, one full year of life average weight 〉=40kg that ewes hogg, clean sourced fleece weight 2.6kg; Average fibre diameter≤20.0 μ m; And front 300 of application BLUP genetic evaluation scoring.Centering X cloth hybridization F
1Select outstanding male and female sheep to carry out the FecB genetic test in generation, application FecB gene molecule marker assisted Selection technology is selected and remain and is carried the genotypic outstanding male and female sheep of B+; Then X cloth, middle X south hybridization F from output thereafter
1Constantly seed selection in the godmother lamb, X cloth, middle X south hybridization F in expansion
1Quantity for the basis female flock of sheep
(3) will carry X cloth hybridization F in the genotypic outstanding male and female sheep of B+
1Fix for carrying out traversed by, adopt artificial insemination method, obtain middle X cloth traversed by F
1A generation, from about 200 X cloth traversed by F in 150 conducts that select and remain that merely hit X cloth traversed by F1 godmother lamb
1For the standby ewe, X cloth traversed by F during 100 the outstanding ewes of selecting and remain finally form
1For the basis female flock of sheep; X cloth traversed by F therefrom
1Consider mainly while selecting and remain outstanding ewe in generation that bodily form appearance, birth weight, weaning weight, age in June weigh, build, the Chinese fine wool sheep feature of head dummy trend, compact by the hair knot structure, physique is large, bridge of the nose protuberance, and back of the body waist is straight, the meat bodily form is apparent in view, birth weight 3.5kg is above, weaning weight 25kg above, more than age in June heavy 35kg, one full year of life average weight 〉=34kg that ewes hogg, clean sourced fleece weight 2.6kg; Average fibre diameter≤20.0 μ m; And front 100 of application BLUP genetic evaluation scoring.Centering X cloth hybridization F
1Select outstanding male and female sheep to carry out the FecB genetic test in generation, application FecB gene molecule marker assisted Selection technology is selected and remain and is carried the genotypic outstanding male and female sheep of BB, B+; Then X cloth traversed by F from output thereafter
1Constantly seed selection in the godmother lamb, X cloth traversed by F in expansion
1Quantity for the basis female flock of sheep
(4) with middle X south hybridization F
1Outstanding ewe and the South African Mutton merino ram selected in generation carry out grading up, adopt artificial insemination method, obtain middle X south hybridization F
2In generation,, from about 180 X south hybridization F that merely hit
2Hybridization F in X south in 120 conducts selects and remain in the godmother lamb
2The standby ewe, hybridization F in X south during 80 the outstanding ewes of selecting and remain finally form
2The basis female flock of sheep; Therefrom F is hybridized in X south
2In mainly consider that bodily form appearance, birth weight, weaning weight, age in June are heavy while selecting and remain outstanding ewe, build, head dummy trend male parent, compact by the hair knot structure, physique is large, bridge of the nose protuberance, and back of the body waist is straight, the meat bodily form is apparent in view, birth weight 4.0kg is above, weaning weight 25kg is above, age in June, heavily more than 35kg, one full year of life eweed hogg more than average weight 50kg, more than clean sourced fleece weight 2.6kg; Average fibre diameter≤20.0 μ m; And front 80 of application BLUP genetic evaluation scoring.Then X south hybridization F from output thereafter
2Constantly seed selection in ewe lamb, hybridization F in X south in expansion
2Quantity for the basis female flock of sheep
(5) will carry the genotypic middle X cloth traversed by F of BB, B+
1In generation,, outstanding male and female sheep hybridized F with middle X south respectively
2In generation, outstanding male and female sheep hybridizes, and adopts artificial insemination method, obtains middle X south X cloth (Chinese fine wool sheep X Bu Lula merino sheep X South African Mutton merino sheep) hybridization F
1In generation,, from about 200 X south X cloth hybridization F that merely hit
1The X south X cloth hybridization standby ewe in 120 conducts of selecting and remain in ewe lamb, during 80 the outstanding ewes of selecting and remain finally form, X south X cloth hybridization F1 is for the basis female flock of sheep; Consider mainly when therefrom X south X cloth hybridization F1 selects and remain outstanding ewe in generation that bodily form appearance, birth weight, weaning weight, age in June weigh, build, the Chinese fine wool sheep feature of head dummy trend, compact by the hair knot structure, physique is large, bridge of the nose protuberance, and back of the body waist is straight, the meat bodily form is apparent in view, birth weight 4.0kg is above, weaning weight 25kg is above, age in June, heavily more than 35kg, one full year of life eweed hogg more than average weight 46kg, more than clean sourced fleece weight 2.3kg; Average fibre diameter≤20.0 μ m; And front 80 of application BLUP genetic evaluation scoring.Centering X south X cloth hybridization F1 selects outstanding male and female sheep to carry out the FecB genetic test in generation, application FecB gene molecule marker assisted Selection technology is selected and remain and carried the genotypic outstanding male and female sheep of B+; Then constantly seed selection in X cloth traversed by F1 godmother lamb from output thereafter, in expansion, X cloth traversed by F1 is for the quantity of basis female flock of sheep
(8) will carry X cloth hybridization F in X south in the genotypic outstanding male and female sheep of B+
1Fix for carrying out traversed by, adopt artificial insemination method, obtain middle X south X cloth traversed by F
1A generation, from about 200 X south X cloth traversed by F that merely hit
1The X south X cloth traversed by standby ewe in 120 conducts of selecting and remain in ewe lamb, X south X cloth traversed by F during 80 the outstanding ewes of selecting and remain finally form
1For the basis female flock of sheep; X south X cloth traversed by F therefrom
1Consider mainly while selecting and remain outstanding ewe in generation that bodily form appearance, birth weight, weaning weight, age in June weigh, build, the Chinese fine wool sheep feature of head dummy trend, compact by the hair knot structure, physique is large, bridge of the nose protuberance, and back of the body waist is straight, the meat bodily form is apparent in view, birth weight 4.0kg is above, weaning weight 25kg is above, age in June, heavily more than 35kg, one full year of life eweed hogg more than average weight 46kg, more than clean sourced fleece weight 2.3kg; Average fibre diameter≤20.0 μ m; And front 80 of application BLUP genetic evaluation scoring.Centering X south X cloth hybridization F
1Select outstanding male and female sheep to carry out the FecB genetic test in generation, application FecB gene molecule marker assisted Selection technology is selected and remain and is carried the genotypic outstanding male and female sheep of B+; Then X south X cloth traversed by F from output thereafter
1Constantly seed selection in the godmother lamb, X cloth traversed by F in X south in expansion
1Quantity for the basis female flock of sheep.
(9) in, an X cloth traversed by generation in X south is numerous through the traversed by seed selection expansion of 3 generations again, obtains Chinese meat polyembryony merino new lines.Centering X south X cloth traversed by selects outstanding male and female sheep to carry out the FecB genetic test in each generation, and application FecB gene molecule marker assisted Selection technology is selected and remain and carried the genotypic outstanding male and female sheep of BB, B+; Then constantly seed selection in each godmother lamb of X south X cloth traversed by from output thereafter, X cloth traversed by each quantity for the basis female flock of sheep in X south in expansion, to form Chinese meat polyembryony merino sheep new lines.
The Chinese meat polyembryony merino sheep new lines productivity of cultivating reaches following standard: the build appearance meets the merino sheep feature, the side staple length is more than 8.0cm, fineness is take 19.1～21.0 μ m as main body, wool fineness is even, it is obvious that bending is, oil sweat is white in color or milky, and side scouring yield 60%(wears sheep coat).Adult ram average weight 90kg, clean sourced fleece weight 5.5 kg, the ewe average weight 55kg that grows up, clean sourced fleece weight 2.7kg; Ram hogg(et) average weight 64kg, clean sourced fleece weight 3.5 kg, the average weight of eweing hogg 46kg, clean sourced fleece weight 2.3kg; Multiparity ewe lambing percentage is 150% ~ 180%.The sheep dressing percentage of growing up is 50%, and pure meat percentage is 37%.
Claims (1)
1. the breeding method of Chinese meat polyembryony merino sheep new lines is characterized in that:
1) Chinese fine wool sheep ewe and Bu Lula merino sheep ram are hybridized, obtain Chinese fine wool sheep X South African Mutton merino sheep (hereinafter to be referred as middle X southern) hybridization F
1Generation;
2) centering X cloth hybridization F
1Select outstanding male and female sheep to carry out the FecB genetic test in generation, application FecB gene molecule marker assisted Selection technology is selected and remain and is carried the genotypic outstanding male and female sheep of B+;
3) will carry X cloth hybridization F in the genotypic outstanding male and female sheep of B+
1Fix for carrying out traversed by, obtain middle X cloth traversed by F
1A generation, application BLUP genetic evaluation technology is X cloth traversed by F therefrom
1Select outstanding male and female sheep in generation, the more outstanding male and female sheep of selecting is carried out the FecB genetic test, application FecB gene molecule marker assisted Selection technology is selected and remain and is carried the genotypic outstanding male and female sheep of B+, BB;
4) Chinese fine wool sheep ewe and South African Mutton profit slave sheep ram hybridize, and adopt artificial insemination method, obtain Chinese fine wool sheep X South African Mutton merino sheep-middle X south hybridization F
1In generation, application BLUP genetic evaluation technology is from F
1Select outstanding ewe in generation;
5) therefrom outstanding ewe and the South African Mutton merino ram selected in generation of X south F1 carries out grading up, obtains middle X south and hybridizes F
2In generation, application BLUP genetic evaluation technology is X south hybridization F therefrom
2Select outstanding male and female sheep in generation;
6) will carry the genotypic middle X cloth traversed by F of B+, BB
1In generation,, outstanding male and female sheep hybridized F with middle X south respectively
2In generation, outstanding male and female sheep hybridizes, and obtains middle X south X cloth hybridization F
1In generation,, from F
1Select outstanding male and female sheep in generation;
7) centering X south X cloth hybridization F
1Select outstanding male and female sheep to carry out the FecB genetic test in generation, application FecB gene molecule marker assisted Selection technology is selected and remain and is carried the genotypic outstanding male and female sheep of B+;
8) will carry X cloth hybridization F in X south in the genotypic outstanding male and female sheep of B+
1Fix for carrying out traversed by, obtain middle X south X cloth traversed by F
1A generation, therefrom X south X cloth traversed by F
1Select outstanding male and female sheep in generation;
9) centering X south X cloth traversed by F
1Select outstanding male and female sheep to carry out the FecB genetic test in generation, FecB gene molecule marker assisted Selection technology is selected and remain and is carried the genotypic outstanding male and female sheep of B+, BB;
10) in, an X cloth traversed by generation in X south is numerous through the seed selection expansion of continuous three generations again, obtains the meat merino new lines of Chinese polyembryony.
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| CN105850884A (en) * | 2016-04-28 | 2016-08-17 | 张家口圣达牧业有限公司 | Breeding method for quinary hybridized multiparous new line of meat sheep |
| CN106332843A (en) * | 2016-10-24 | 2017-01-18 | 福建省努比亚农牧有限公司 | Method for breeding elite mutton sheep strain |
| CN107996515A (en) * | 2017-12-28 | 2018-05-08 | 吉林省农业科学院 | A kind of breeding method of northeast mutton type fine-wool sheep new lines |
| CN109619041A (en) * | 2019-01-17 | 2019-04-16 | 新疆农垦科学院 | A kind of dual-purpose sheep new strain cultivation method |
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| CN101861847A (en) * | 2010-06-29 | 2010-10-20 | 河南科技大学 | Method for breeding new strain for Yuxi fatty-tailed mutton |
| CN101946749A (en) * | 2010-08-09 | 2011-01-19 | 郑州牧业工程高等专科学校 | Method for breeding red-head mutton goat new strain |
| CN102405881A (en) * | 2011-08-17 | 2012-04-11 | 甘肃农业大学 | Method for breeding meat and wool dual-purpose new variety of Gansu alpine merino |
| CN102812925A (en) * | 2012-08-10 | 2012-12-12 | 普安县畜牧养殖协会 | Breeding method for Puan black goat line |
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2013
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101861847A (en) * | 2010-06-29 | 2010-10-20 | 河南科技大学 | Method for breeding new strain for Yuxi fatty-tailed mutton |
| CN101946749A (en) * | 2010-08-09 | 2011-01-19 | 郑州牧业工程高等专科学校 | Method for breeding red-head mutton goat new strain |
| CN102405881A (en) * | 2011-08-17 | 2012-04-11 | 甘肃农业大学 | Method for breeding meat and wool dual-purpose new variety of Gansu alpine merino |
| CN102812925A (en) * | 2012-08-10 | 2012-12-12 | 普安县畜牧养殖协会 | Breeding method for Puan black goat line |
Non-Patent Citations (1)
| Title |
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| 储明星等: "绵羊多胎主效基因FecB 分子检测方法的建立与应用", 《农业生物技术学报》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105850884A (en) * | 2016-04-28 | 2016-08-17 | 张家口圣达牧业有限公司 | Breeding method for quinary hybridized multiparous new line of meat sheep |
| CN106332843A (en) * | 2016-10-24 | 2017-01-18 | 福建省努比亚农牧有限公司 | Method for breeding elite mutton sheep strain |
| CN106332843B (en) * | 2016-10-24 | 2017-10-31 | 福建省努比亚农牧有限公司 | A kind of breeding method of improved mutton sheep strain |
| CN107996515A (en) * | 2017-12-28 | 2018-05-08 | 吉林省农业科学院 | A kind of breeding method of northeast mutton type fine-wool sheep new lines |
| CN109619041A (en) * | 2019-01-17 | 2019-04-16 | 新疆农垦科学院 | A kind of dual-purpose sheep new strain cultivation method |
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| CN103392672B (en) | 2015-10-21 |
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