CN104351562A - Growth promoting agent for promoting growth of weaned pig and application - Google Patents
Growth promoting agent for promoting growth of weaned pig and application Download PDFInfo
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- CN104351562A CN104351562A CN201410690304.5A CN201410690304A CN104351562A CN 104351562 A CN104351562 A CN 104351562A CN 201410690304 A CN201410690304 A CN 201410690304A CN 104351562 A CN104351562 A CN 104351562A
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- weanling pig
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Abstract
The invention discloses a growth promoting agent for promoting the growth of a weaned pig and an application. The growth promoting agent consists of N-acetyl-L-cysteine and acetaminophen at a certain ratio, and is prepared according to the following steps: step A, proportionally weighing the N-acetyl-L-cysteine; step B, proportionally weighing the acetaminophen; step C, sequentially adding the weighed N-acetyl-L-cysteine and acetaminophen into a mixer and fully mixing to obtain the growth promoting agent applicable to the weaned pig. The invention also discloses the application of the growth promoting agent for the weaned pig to feeds for the weaned pig. The feed additive can be used for relieving weaning stress of the pig, increasing the average daily gain of the weaned pig by more than 230%, reducing the feed to gain ratio by more than 40%, reducing the incidence of diarrhea by more than 54% and remarkably improving the growth performance of the pig, causes no resistance to drugs, can be used for effectively replacing an antibiotic growth promoting agent and satisfies a healthy breeding development direction.
Description
Technical field
The invention belongs to herding or field of feed, more specifically relate to a kind of growth stimulator promoting weanling pig, also relate to simultaneously and a kind ofly promote the purposes of the growth stimulator of weanling pig in weanling pig.
Background technology
In modern pig industry, early weaning piglet improves the advantage such as production efficiency, the early growth of promotion piglet, reduction feeding cost of sow owing to having, and obtains promotion and application widely.But early weaning piglet stress cause piglet functional disturbances of gastrointestinal tract, bring out early weaning piglet syndrome, cause piglet growth to slow down or stagnate, even dead, all bring huge negative effect to piglet growth and Swine Production.Modern study shows, the nutrition in weaned piglet stage is the main aspect affecting ablactation stress, the interpolation of the nutritional labeling of daily ration, raw material composition, daily ration granularity and special composition, plays an important role to control stress of baby pigs caused ablaction.Therefore, research and development feed and the nutritional tools such as nutrition, feed addictive are important means of current solution stress of baby pigs caused ablaction.
N-acetyl-L-cysteine is sulfur alcohol compound, is the precursor of native amino Cys and reduced glutathione.For a long time, multiplex make respiratory system mucolytic and the excessive antidote of paracetamol, also can alleviate the toxicity of the materials such as heavy metal, acrylonitrile, alkaline corrosion agent simultaneously.Think in recent years, N-acetyl-L-cysteine can: (1) is by the damage of direct anti-peroxidation and promote that body glutathion inside synthesizes two kinds of approach and plays scavenging free radicals, and can the generation of anti-lipid peroxidation product MDA etc., alleviate its oxidative damage to intestinal tissue; (2) reduce the activity of enteron aisle glutathion inside-S-transferase, glutathione reductase, myeloperoxidase etc., increase the content of antioxidant enzyme, superoxide dismutase, catalase, glutathione peroxidase; (3) suppress the generation of the inflammatory mediators such as NO, the inflammatory reaction of adhesion molecule-1 and peroxynitrite mediation between T suppression cell, reduces neutrophil infiltration; (4) effectively improve intestinal permeability to strengthen, prevent intestinal bacilli illness and bacterial translocation; (5) intestinal epithelial cell many factors caused or Lymphocyte Apoptosis inhibited, contribute to the integrality safeguarding intestines mechanical barrier and immunization barrier; (6) contribute to maintaining the enough oxygen of enteron aisle to supply and blood confession, improve Intestinal mucosal blood flow, reduce anoxic or ischemical reperfusion injury; (7) contribute to the absorption of intestinal tissue to amino acid, protein or polypeptide class hydrophilic compounds with nonionic surfactant coupling, improve intestines and general immunity function, and then strengthen the protective effect to intestines 26S Proteasome Structure and Function.Therefore, N-acetyl-L-cysteine can improve animal body anti-oxidation function, improves immunocompetence, maintain enteron aisle normal physiological function.
Paracetamol by suppressing the synthesis of prostaglandin in central nervous system and blocking the impulsion of pain nerve tip and produce analgesic activity, thus reduces the pain of animal; Also work, for animal is antipyretic by hypothalamus heat-regulating centers.
At present, although some documents show that the composition of N-acetyl-L-cysteine and paracetamol is at analgesia, antipyretic, anti-inflammatory, the effect of even removing toxic substances aspect, the composition had no about both is applied to the somatotrophic report of weanling pig.
Summary of the invention
The object of the invention is to there are provided a kind of growth stimulator promoting weanling pig, formula is rationally, easy to use, can effective substitute antibiotics growth accelerator, meets healthy aquaculture developing direction.
Another object of the present invention there are provided a kind ofly to promote the application of the growth stimulator of weanling pig in weanling pig, can alleviate stress of baby pigs caused ablaction, improve piglet growth performance; Can not drug resistance be produced, can effective substitute antibiotics growth accelerator.
In order to realize above-mentioned object, the present invention adopts following technical measures:
Promote a growth stimulator for weanling pig, it is made up of the raw material of following weight portion:
Parts by weight of raw materials
N-acetyl-L-cysteine 0.5 ~ 2
Paracetamol 0.8 ~ 1.2
Promote a growth stimulator for weanling pig, it is made up of (preferable range) the raw material of following weight portion:
Parts by weight of raw materials
N-acetyl-L-cysteine 0.6 ~ 1.8
Paracetamol 0.9 ~ 1.1
Promote a growth stimulator for weanling pig, it is made up of (good scope) the raw material of following weight portion:
Parts by weight of raw materials
N-acetyl-L-cysteine 0.8 ~ 1.6
Paracetamol 0.98 ~ 1.17
Promote a growth stimulator for weanling pig, it is made up of (optimum range) the raw material of following weight portion:
Parts by weight of raw materials
N-acetyl-L-cysteine 1.0 ~ 1.5
Paracetamol 1
Promote a growth stimulator for weanling pig, it is made up of the raw material of following weight portion:
Parts by weight of raw materials
N-acetyl-L-cysteine 1.3
Paracetamol 1.1
Promote a preparation method for the growth stimulator of weanling pig, the steps include:
A, take N-acetyl-L-cysteine in proportion.
B, take Paracetamol in proportion.
C, the N-acetyl-L-cysteine taken and paracetamol to be dropped in mixer successively, fully mix, namely obtain a kind of weanling pig growth accelerator of the present invention.
Promote the application of the growth stimulator of weanling pig in weanling pig feed, the steps include:
The weanling pig application of growth accelerator in 4kg to 15kg weanling pig feed, all has four kinds of modes:
First kind of way: directly addition manner
Take a kind of of 0.05 ~ 0.2 weight portion and promote that the growth stimulator of weanling pig joins in the weanling pig animal feed of 99.95 ~ 99.8 weight portions, drop in mixer and fully mix, form the weanling pig feed containing the growth stimulator promoting weanling pig.
Above-describedly a kind ofly promote that the growth stimulator of weanling pig and the weight sum of weanling pig feed are 100.
The second way: pre-mixing agent addition manner
A, take a kind of of 1 weight portion and promote the carrier of the growth stimulator of weanling pig and 1 weight portion (being applicable to any one carrier of feed), fully mix through mixer, define the growth stimulator pre-mixing agent promoting weanling pig.
B, the compound functional amino feed addictive pre-mixing agent taking 0.1 ~ 0.4 weight portion join in the weanling pig feed of 99.9 ~ 99.6 weight portions, drop in mixer and fully mix, form the weanling pig feed containing the growth stimulator promoting weanling pig.
The above-described promotion growth stimulator pre-mixing agent of weanling pig and the weight sum of weanling pig feed are 100.
The third mode: premix addition manner
A, take a kind of of 1 weight portion and promote the growth stimulator of weanling pig and other feed addictives of 1 weight portion, fully mix through mixer, define the premix containing the growth stimulator promoting weanling pig.
B, take 0.1 ~ 0.4 weight portion containing promoting that the premix of growth stimulator of weanling pig joins in the weanling pig feed of 99.9 ~ 99.6 weight portions, drop in mixer and fully mix, form the weanling pig feed containing the growth stimulator promoting weanling pig.
The above-described premix of growth stimulator containing promotion weanling pig and the weight sum of weanling pig feed are 100.
4th kind of mode: concentrate feed addition manner, for 20% weanling pig concentrate feed.
A, take a kind of of 0.25 ~ 1 weight portion and promote that the growth stimulator of weanling pig joins in 20% weanling pig concentrate feed of 99.75 ~ 99 weight portions, drop in mixer and fully mix, form the weanling pig concentrated feed containing the growth stimulator promoting weanling pig.
The above-described promotion growth stimulator of weanling pig and the weight sum of 20% weanling pig concentrated feed are 100.
B, by 20% weanling pig concentrate feed according to the method in its operation instructions, form the weanling pig feed of growth stimulator containing promoting weanling pig.
Described concentrated feed, is also called protein supplementaling feed, is by the formulated mixed feed semi-finished product of protein feeds (fish meal, soya-bean cake etc.), mineral feed (bone meal stone flour etc.) and additive premix.Mix a certain proportion of energy feed (corn, Chinese sorghum, barley etc.) again and just become the complete feed meeting Animal nutrition needs, there is the advantages such as protein content high (generally between 30% ~ 50%), nutritional labeling be comprehensive, easy to use.General ratio shared in perfect compound feed is 20% ~ 40%.Concentrated feed composition: containing following material in its raw material: mineral matter, comprises bone meal, stone flour (calcium powder) or oyster shell whiting; Trace element, comprises copper sulphate, manganese sulfate, zinc sulfate, ferrous sulfate, KI, sodium selenite etc.; Amino acid, antioxidant, antibiotic, protein feeds and multivitamin etc.It is that livestock and poultry life physically well develops soon, meat is good, the required trophic level that is of high nutritive value calculates, and adopts modern process equipment according to making, and is fully mixed by above raw material and makes.This concentrated feed can raise unit as an independent hay varieties supply, and user mixes energy feed by a certain percentage, namely becomes mixed feed after stirring.Such as: the match ratio of layer chicken feed is 30% laying hen concentrated feed, the energy feed of 70%; The match ratio of pig feed is 20% concentrated feed, the energy feed of 80%.The most applicable rural households exclusively engaging in a particular productionor trade of concentrated feed is raised pigs, use of raising chickens.The grain utilizing oneself to produce and byproduct, then be equipped with concentrated feed, get final product Direct-fed, decrease unnecessary transit link, abridged edition saving of labor.
The present invention compared with prior art, has the following advantages and effect:
This feed addictive can be alleviated stress of baby pigs caused ablaction, improves weanling pig average daily gain more than 230%, reduce feed-weight ratio more than 40%, decrease Incidence of Diarrhea more than 54%, remarkable promotion piglet growth performance, drug resistance can not be produced, can effective substitute antibiotics growth accelerator, meet healthy aquaculture developing direction.
Detailed description of the invention
Embodiment 1:
Promote a growth stimulator for weanling pig, it is made up of the raw material of following weight portion:
Parts by weight of raw materials
N-acetyl-L-cysteine 0.6
Paracetamol 1
Promote a preparation method for the growth stimulator of weanling pig, the steps include:
A, take the N-acetyl-L-cysteine of 0.6 weight portion.
B, take the paracetamol of 1 weight portion.
C, the N-acetyl-L-cysteine taken and paracetamol are dropped into mixer successively, fully mix, namely obtain a kind of weanling pig growth accelerator of the present invention.
Promote a growth stimulator for weanling pig, it is made up of the raw material of following weight portion:
| Raw material and embodiment | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| N-acetyl-L-cysteine | 0.75 | 0.92 | 1.19 | 1.25 | 1.47 | 1.52 | 1.71 | 1.93 |
| Paracetamol | 1.2 | 1.1 | 0.9 | 1 | 1 | 0.9 | 0.9 | 0.8 |
Its preparation process is identical with embodiment 1.
Embodiment 10:
Promote the application of the growth stimulator of weanling pig in 5.2kg weanling pig, the steps include:
1, take the N-acetyl-L-cysteine of 0.5 weight portion and the paracetamol of 1 weight portion, drop into mixer successively, fully mix, namely obtain a kind of weanling pig growth accelerator I of the present invention.
2, take a kind of weanling pig growth accelerator I of 1 weight portion and the defatted rice bran of 1 weight portion, drop into mixer successively, fully mix, namely obtain the premix I containing a kind of weanling pig growth accelerator.
What 3, take 0.2 weight portion contains a kind of premix I of weanling pig growth accelerator and the weanling pig feed of 99.8 weight portions, drops into mixer successively, fully mixes, and namely obtains the weanling pig feed I containing a kind of weanling pig growth accelerator.
4, take the N-acetyl-L-cysteine of 0.1 weight portion and the paracetamol of 1 weight portion, drop into mixer successively, fully mix, namely obtain a kind of weanling pig growth accelerator II of the present invention.
5, take a kind of weanling pig growth accelerator II of 1 weight portion and the defatted rice bran of 1 weight portion, drop into mixer successively, fully mix, namely obtain the premix II containing a kind of weanling pig growth accelerator.
What 6, take 0.1 weight portion contains a kind of premix II of weanling pig growth accelerator and the weanling pig feed of 99.9 weight portions, drops into mixer successively, fully mixes, and namely obtains the weanling pig feed II containing a kind of weanling pig growth accelerator.
7, take the N-acetyl-L-cysteine of 1.5 weight portions and the paracetamol of 1 weight portion, drop into mixer successively, fully mix, namely obtain a kind of weanling pig growth accelerator III of the present invention.
8, take the weanling pig feed containing a kind of weanling pig growth accelerator III and 99.8 weight portions of 0.2 weight portion, drop into mixer successively, fully mix, namely obtain the weanling pig feed III containing a kind of weanling pig growth accelerator.
9, select the DLY suckling pig that 120 body weight are consistent with sex, be divided into 5 groups at random, be i.e. control group, antibiotic control group and test I, II, III group, every component 3 repetition (hurdle), 8, every hurdle.
10, each group of basal diet trophic level of feeding is consistent.Wherein test I, II, III group of weanling pig feed I, II, III of feeding respectively, antibiotic control group fed adds 0.04% colistin sulfate pre-mixing agent (colistin sulfate content is 10%), and control group does not add antibiotic.
11, test to latter 7 days of wean from weaning first 10 days, all suckling pigs are in the disposable wean of 21 age in days, and average weaning weight is 5.2kg.
12, result of the test is as following table 1-2:
Table 1 adds weanling pig growth accelerator to the impact of weanling pig small intestinal villous height/Crypt depth
| Project | Control group | Antibiotic control group | Test I group | Test II group | Test III group |
| Duodenum | 0.98±0.07 c | 1.10±0.06 b | 1.32±0.08 a | 1.44±0.08 a | 1.40±0.05 a |
| Jejunum | 0.87±0.09 c | 1.20±0.09 b | 1.43±0.14 a | 1.57±0.14 a | 1.52±0.12 a |
| Ileum | 0.92±0.10 b | 1.21±0.11 b | 1.52±0.09 a | 1.66±0.09 a | 1.63±0.13 a |
Note: the right shoulder of colleague's data indicates different letter representation significant difference (p<0.05), and following table roughly the same.
It is that enteron aisle is impaired that the inherence of ablactation stress on suckling pig affects main manifestations, and namely the reduction of small intestinal mucosa height of naps and crypts increase dark, so small intestinal villous height and Crypt depth ratio reduce, intestinal absorption ability is obstructed.The test group of adding weanling pig growth accelerator of the present invention significantly improves duodenum, jejunum, the small intestinal villous height of ileum and Crypt depth ratio than control group, is also better than adding antibiotic control group (p<0.05).Therefore, weanling pig growth accelerator can alleviate stress of baby pigs caused ablaction, effectively replaces antibiotic.
Table 2 adds weanling pig growth accelerator to the impact of Growth Performance of Weaning Piglets
The external main manifestations of the impact of ablactation stress on suckling pig is that weaning brash rate increases, feed intake declines, weightening finish reduces, thus growth performance seriously glides.Table 2 result shows, apply feed addictive of the present invention, compared with adding the control group of colistin sulfate, weanling pig daily gain significantly improves more than 34.45%, feed-weight ratio reduces by more than 5.3%, Incidence of Diarrhea can reduce by more than 31.85% (p<0.05); Compared with control group, weanling pig daily gain significantly improves more than 237%, feed-weight ratio reduces by more than 40%, Incidence of Diarrhea can reduce by more than 54.46% (p<0.05).Therefore, weanling pig growth accelerator can promote that weanling pig grows, improves feed efficiency, reduce Incidence of Diarrhea, effectively can substitute antivirus somatotropic agent.
Embodiment 11:
Promote the application of the growth stimulator of weanling pig in 7.8kg weanling pig, the steps include:
1, take the N-acetyl-L-cysteine of 0.7 weight portion and the paracetamol of 1 weight portion, drop into mixer successively, fully mix, namely obtain a kind of weanling pig growth accelerator I of the present invention.
2, take a kind of weanling pig growth accelerator I of 1 weight portion and the defatted rice bran of 1 weight portion, drop into mixer successively, fully mix, namely obtain the premix I containing a kind of weanling pig growth accelerator.
What 3, take 0.2 weight portion contains a kind of premix I of weanling pig growth accelerator and the weanling pig feed of 99.8 weight portions, drops into mixer successively, fully mixes, and namely obtains the weanling pig feed I containing a kind of weanling pig growth accelerator.
4, take the N-acetyl-L-cysteine of 1.05 weight portions and the paracetamol of 1 weight portion, drop into mixer successively, fully mix, namely obtain a kind of weanling pig growth accelerator II of the present invention.
5, take a kind of weanling pig growth accelerator II of 1 weight portion and the defatted rice bran of 1 weight portion, drop into mixer successively, fully mix, namely obtain the premix II containing a kind of weanling pig growth accelerator.
What 6, take 0.1 weight portion contains a kind of premix II of weanling pig growth accelerator and the weanling pig feed of 99.9 weight portions, drops into mixer successively, fully mixes, and namely obtains the weanling pig feed II containing a kind of weanling pig growth accelerator.
7, take the N-acetyl-L-cysteine of 1.5 weight portions and the paracetamol of 1 weight portion, drop into mixer successively, fully mix, namely obtain a kind of weanling pig growth accelerator III of the present invention.
8, take the weanling pig feed containing a kind of weanling pig growth accelerator III and 99.8 weight portions of 0.2 weight portion, drop into mixer successively, fully mix, namely obtain the weanling pig feed III containing a kind of weanling pig growth accelerator.
9, select the DLY suckling pig that 135 body weight are consistent with sex, be divided into 5 groups at random, be i.e. control group, antibiotic control group and test I, II, III group, every component 3 repetition (hurdle), 9, every hurdle.
10, each group of basal diet trophic level of feeding is consistent.Wherein test I, II, III group of weanling pig feed I, II, III of feeding respectively, antibiotic control group fed adds 0.04% colistin sulfate pre-mixing agent (colistin sulfate content is 10%), and control group does not add antibiotic.
11, test to latter 7 days of wean from weaning first 10 days, all suckling pigs are in the disposable wean of 21 age in days, and average weaning weight is 7.8kg.
12, result of the test is as following table 3-4:
Table 3 adds weanling pig growth accelerator to the impact of weanling pig small intestinal villous height/Crypt depth
| Project | Control group | Antibiotic control group | Test I group | Test II group | Test III group |
| Duodenum | 0.92±0.03 c | 1.22±0.06 b | 1.42±0.09 a | 1.54±0.08 a | 1.54±0.05 a |
| Jejunum | 0.91±0.08 c | 1.30±0.09 b | 1.53±0.10 a | 1.59±0.14 a | 1.63±0.10 a |
| Ileum | 0.83±0.12 b | 1.24±0.11 b | 1.56±0.08 a | 1.71±0.07 a | 1.66±0.10 a |
Note: the right shoulder of colleague's data indicates different letter representation significant difference (p<0.05), and following table roughly the same.
The test group of adding weanling pig growth accelerator of the present invention significantly improves duodenum, jejunum, the small intestinal villous height of ileum and Crypt depth ratio than control group, is also better than adding antibiotic control group (p<0.05).Therefore, weanling pig growth accelerator can alleviate stress of baby pigs caused ablaction, effectively replaces antibiotic.
Table 4 adds weanling pig growth accelerator to the impact of Growth Performance of Weaning Piglets
Table 4 result shows, apply feed addictive of the present invention, compared with adding the control group of colistin sulfate, weanling pig daily gain significantly improves more than 66.92%, feed-weight ratio reduces by more than 15.86%, Incidence of Diarrhea can reduce by more than 51.9% (p<0.05); Compared with control group, weanling pig daily gain significantly improves more than 281%, feed-weight ratio reduces by more than 40%, Incidence of Diarrhea can reduce by more than 64.54% (p<0.05).Therefore, weanling pig growth accelerator can promote that weanling pig grows, improves feed efficiency, reduce Incidence of Diarrhea, effectively can substitute antivirus somatotropic agent.
Claims (7)
1. promote a growth stimulator for weanling pig, it is made up of the raw material of following weight portion:
Parts by weight of raw materials
N-acetyl-L-cysteine 0.5 ~ 2
Paracetamol 0.8 ~ 1.2;
Promote a preparation method for the growth stimulator of weanling pig, the steps include:
A, take N-acetyl-L-cysteine in proportion;
B, take Paracetamol in proportion;
C, the N-acetyl-L-cysteine taken and paracetamol to be dropped in mixer successively, fully mix, obtain a kind of weanling pig growth accelerator.
2. a kind of growth stimulator promoting weanling pig according to claim 1, is characterized in that:
Parts by weight of raw materials
N-acetyl-L-cysteine 0.6 ~ 1.8
Paracetamol 0.9 ~ 1.1.
3. a kind of growth stimulator promoting weanling pig according to claim 1, is characterized in that:
Parts by weight of raw materials
N-acetyl-L-cysteine 0.8 ~ 1.6
Paracetamol 0.98 ~ 1.17.
4. a kind of growth stimulator promoting weanling pig according to claim 1, is characterized in that:
Parts by weight of raw materials
N-acetyl-L-cysteine 1.0 ~ 1.5
Paracetamol 1.
5. a kind of growth stimulator promoting weanling pig according to claim 1, is characterized in that:
Parts by weight of raw materials
N-acetyl-L-cysteine 1.3
Paracetamol 1.1.
6. a kind of growth stimulator promoting weanling pig according to claim 1, is characterized in that:
Parts by weight of raw materials
N-acetyl-L-cysteine 0.6
Paracetamol 1.
7. according to claim 1ly a kind ofly promote the application of the growth stimulator of weanling pig in weanling pig feed;
Described weanling pig is 4kg to 15kg.
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| CN201410690304.5A CN104351562A (en) | 2014-11-25 | 2014-11-25 | Growth promoting agent for promoting growth of weaned pig and application |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106260590A (en) * | 2016-07-29 | 2017-01-04 | 湖南晶天科技实业有限公司 | Feed additive and feedstuff |
| CN107937478A (en) * | 2017-12-29 | 2018-04-20 | 武汉轻工大学 | A kind of screening technique of piglet functional feedstuff additive |
| CN107950775A (en) * | 2017-12-29 | 2018-04-24 | 湖北浩华生物技术有限公司 | A kind of pig interferon derivant and its preparation method and application |
| CN108112786A (en) * | 2017-12-18 | 2018-06-05 | 中国农业大学 | Application of the cysteine as enteron aisle essential nutrients in animal health maintenance |
| CN111317070A (en) * | 2020-04-26 | 2020-06-23 | 浙江省农业科学院 | Feed additive for improving meat quality of fattening pigs and application |
-
2014
- 2014-11-25 CN CN201410690304.5A patent/CN104351562A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| YINSHENG QIUA,ER AL: "The combination effects of acetaminophen and", 《VETERINARY IMMUNOLOGY AND IMMUNOPATHOLOGY》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106260590A (en) * | 2016-07-29 | 2017-01-04 | 湖南晶天科技实业有限公司 | Feed additive and feedstuff |
| CN108112786A (en) * | 2017-12-18 | 2018-06-05 | 中国农业大学 | Application of the cysteine as enteron aisle essential nutrients in animal health maintenance |
| CN107937478A (en) * | 2017-12-29 | 2018-04-20 | 武汉轻工大学 | A kind of screening technique of piglet functional feedstuff additive |
| CN107950775A (en) * | 2017-12-29 | 2018-04-24 | 湖北浩华生物技术有限公司 | A kind of pig interferon derivant and its preparation method and application |
| CN111317070A (en) * | 2020-04-26 | 2020-06-23 | 浙江省农业科学院 | Feed additive for improving meat quality of fattening pigs and application |
| CN111317070B (en) * | 2020-04-26 | 2022-12-23 | 浙江省农业科学院 | Feed additive for improving meat quality of fattening pigs and application |
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Application publication date: 20150218 |