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Transcriptional response of porcine skeletal muscle to feeding a linseed-enriched diet to growing pigs

Journal of Animal Science and Biotechnology 2016年第2期7卷 238-247页

作者： hongkui wei Yuanfei Zhou Shuzhong Jiang Feiruo Huang Jian Peng Siwen Jiang Department of Animal Nutrition and Feed Science College of Animal Science and Technology Huazhong Agricultural University Key Lab of Agricultural Animal Genetics Breeding and Reproduction of Ministry of Education & Key Lab of Swine Genetics and Breeding of Ministry of Agriculture Huazhong Agricultural University

Background： To investigate the effect of feeding a linseed-enriched diet to growing-finishing pigs on gene expression in skeletal muscle, pigs were fed with a linseed-enriched diet for 0, 30, 60 and 90 d. Transcriptional profiles of longissimus dorsi muscle were measured using Affymetrix ***： Results showed that 264 genes were identified as differentially expressed genes（DEGs）. The strongest transcriptional response was clearly observed at 30 d. DEGs were assigned to several main functional terms,including transcription, apoptosis, intracellular receptor-mediated signaling, muscle organ development, fatty acid metabolic process, cell motion, regulation of glucose metabolic process, spermatogenesis and regulation of myeloid cell differentiation. We also found that transcriptional changs of several transcription cofactors might contribute to n-3 PUFAs regulated gene expression. In addition, the increased expression of IGF-1, insulin signaling pathway and the metabolism of amino acids might involve in the muscle growth induced by feeding a linseedenriched diet. The results also provide the new evidence that the expression changes of PTPN1, HK2 and PGC-1αmight contribute to the regulation of insulin sensitivity by n-3 ***： Our finding provided correlative evidence that feeding the linseed enriched diet affact expression of genes involved in insulin signaling pathway and the metabolism of amino acids.

关键词： Linseed m RNA expression n-3 PUFAs Skeletal muscle

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Optimizing feeding regimen of replacement gilts to improve their reproductive performance and retention rate of their first 2 parities

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Animal Nutrition 2023年第1期12卷 227-235页

作者： Jiajian Tan Miaomiao Wang Haiqing Sun Chao Wang hongkui wei Siwen Jiang Yuanfei Zhou Jian Peng Department of Animal Nutrition and Feed Science College of Animal Science and TechnologyHuazhong Agricultural UniversityWuhan 430070China Key Lab of Agricultural Animal Genetics Breeding and Reproduction of Ministry of Education&Key Lab of Swine Genetics and Breeding of Ministry of AgricultureHuazhong Agricultural UniversityWuhan 430070China The Cooperative Innovation Center for Sustainable Pig Production Wuhan 430070China Guangxi Yang Xiang Joint Stock Company Guigang 537000China

The effects of age,body weight(BW),and backfat thickness(BF)of replacement gilts at first estrus and first mating on their subsequent reproductive performance and retention of their first 2 parities as sows was evaluated.A total of 3,025 Danish replacement gilts were categorized by farm(allocated to 4 farms),cross combination,age,BW and BF at first estrus and first mating,estrous cycle number at first mating,and flush feeding before first *** result shows that all the factors mentioned above were significantly associated with reproductive performance and retention rates of the first 2 *** 3 had more piglets born alive per litter(BA)(P<0.05).Farms 3 and 4 had more healthy piglets per litter(HP)(P<0.05).Farm 4 had the most piglets weaned per litter(PW)(P<0.05).Landrace×Landrace×Yorkshire(L×L×Y)replacement gilts had the most total piglets born per litter(TB),BA,HP,PW and a higher retention rate of the 2 parities than Landrace×Yorkshire(L×Y)replacement gilts(P<0.05).In addition,flush feeding before first mating had the most TB,BA,HP,PW,and a higher retention rate of the 2 parities than no flush feeding(P<0.05).Because the effects of replacement gilts rearing parameters on reproductive performance traits differed,we used 100 replacement gilts as a unit and the total number of weaned piglets from the first 2 parities as a new *** gilts undergoing their first estrus between 180 and 210 d of age at 115 to 124.9 kg BW and 14 to 15 mm BF had significantly higher reproductive indexes for their first 2 parities per 100 replacement *** gilts that mated between 210 and 230 d of age at 140 to 149.9 kg BW and 15 to 16 mm BF had optimal reproductive *** results provide a new insight into the complex relationships among these reproductive performance traits and may help guide successful management of replacement gilts as a pivotal starting point for future fertility and longevity of rearing herds.

关键词： Replacement gilts Rearing parameter Reproductive performance Retention rate

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Different dietary methionine to lysine ratios in the lactation diet:effects on the performance of sows and their offspring and methionine metabolism in lactating sows

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Journal of Animal Science and Biotechnology 2020年第1期11卷 121-131页

作者： hongkui wei Xichen Zhao Mao Xia Chengquan Tan Jun Gao John KHtoo Chuanhui Xu Jian Peng Department of Animal Nutrition and Feed Science College of Animal Science and TechnologyHuazhong Agricultural UniversityWuhanPeople’s Republic of China Department of Animal Nutrition and Feed Science College of Animal ScienceSouth China Agricultural UniversityGuangzhouPeople’s Republic of China Evonik Degussa(China)Co. LtdBeijingPeople’s Republic of China Evonik Nutrition&Care GmbH Hanau-WolfgangEssenGermany The Cooperative Innovation Center for Sustainable Pig Production WuhanPeople’s Republic of China.

Background:Over the last decade,the nutritional requirements of lactating modern genotype sows have *** current nutritional recommendations might be unable to meet the needs of increased litter size and milk production,and thus the nutritional requirements need to be *** current study was conducted to investigate the effects of dietary methionine to lysine(Met:Lys)ratios on the performance of and methionine metabolism in lactating ***:During the 1st week of lactation,piglets reared on sows in the 0.37 to 0.57 Met:Lys ratio groups grew faster than those reared on sows in the control group(0.27)(P<0.01).The 0.37-ratio group showed increased levels of GSHPx in plasma during lactation(P<0.01)and decreased concentrations of urea nitrogen in the plasma of sows(P<0.05).Compared with the 0.27-ratio group,the levels of T-AOC and GSH-Px in the plasma and homocysteine in the milk of lactating sows were significantly increased in sows in the 0.47-ratio group(P<0.01).In sows fed a 0.57-ratio diet,the levels of glutathione and taurine in the plasma and milk were improved significantly during ***,the content of TBARS in the blood(P<0.05 at day 7 and P=0.06 at weaning day)was increased(P<0.01).Moreover,there were linear increases in the levels of homocysteine in the blood and milk of sows during the lactation period(P<0.01)with increased dietary Met:Lys ratios in the lactation ***:The current study indicated that increasing the dietary Met:Lys ratio(0.37~0.57)in the lactation diet had no significant effect on the overall performance of sows or the colostrum and milk composition,but it increased piglet mean BW and piglet ADG during the first week of *** dietary methionine levels had no significant effect on antioxidant function in lactation sows,even though it increased levels of GSH and GSH-Px in the plasma of sows during ***,the content of homocysteine in the plasma and milk increased during

关键词： Lactation Methionine Met to Lys ratios Oxidative stress Piglet growth performance Sow performance

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Paneth cells in farm animals:current status and future direction

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Journal of Animal Science and Biotechnology 2023年第6期14卷 2263-2275页

作者： Chenbin Cui Lindeng Li Lin Wu Xinru Wang Yao Zheng Fangke Wang hongkui wei Jian Peng Department of Animal Nutrition and Feed Science College of Animal Science and TechnologyHuazhong Agricultural UniversityWuhan 430070China The Cooperative Innovation Center for Sustainable Pig Production Wuhan 400700China

A healthy intestine plays an important role in the growth and development of farm *** small intestine,Paneth cells are well known for their regulation of intestinal microbiota and intestinal stem cells(ISCs).Although there has been a lot of studies and reviews on human and murine Paneth cells under intestinal homeostasis or disorders,little is known about Paneth cells in farm *** farm animals possess Paneth cells in their small intestine,as identified by various staining methods,and Paneth cells of various livestock species exhibit noticeable differences in cell shape,granule number,and intestinal *** cells in farm animals and their antimicrobial peptides(AMPs)are susceptible to multiple factors such as dietary nutrients and intestinal ***,the comprehensive understanding of Paneth cells in different livestock species will contribute to the improvement of intestinal *** review first summarizes the current status of Paneth cells in pig,cattle,sheep,horse,chicken and rabbit,and points out future directions for the investigation of Paneth cells in the reviewed animals.

关键词： Antimicrobial peptide Farm animal Intestinal organoid Intestine Paneth cell

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Source and level of dietary iron influence semen quality by affecting inflammation, oxidative stress and iron utilization levels in boars

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Journal of Animal Science and Biotechnology 2024年第5期15卷 2044-2058页

作者： Yinghui Wu Yamei Li Yueyue Miao hongkui wei Hefeng Luo Chunxiao Ren Yawei Zhang Juan Chen Tanghong wei Jiyan Deng Jian Peng Department of Animal Nutrition and Feed Science College of Animal Science and TechnologyHuazhong Agricultural UniversityWuhan 430070China The Cooperative Innovation Center for Sustainable Pig Production Wuhan 400700China Frontiers Science Center for Animal Breeding and Sustainable Production Wuhan 430070China Dekon Food and Agriculture Group Chengdu 610000China Xingjia Bio-Engineering Co.Ltd Changsha 410011China

Background Boars fed a mixed form of inorganic and organic iron in excess of the NRC recommended levels still develop anemia,which suggested that the current level and form of iron supplementation in boar diets may be ***,56 healthy Topeka E line boars aged 15–21 months were randomly divided into 5 groups:basal diet supplemented with 96 mg/kg ferrous sulfate(FeSO_(4))and 54 mg/kg glycine chelated iron(Gly-Fe,control);80 mg/kg or 115 mg/kg Gly-Fe;80 mg/kg or 115 mg/kg methionine hydroxyl analogue chelated iron(MHA-Fe,from CalimetFe)for 16 *** effects of dietary iron supplementation with different sources and levels on semen quality in boars were *** 1)Serum Fe and hemoglobin concentrations were not affected by reduced dietary iron levels in the 80 mg/kg or 115 mg/kg Gly-Fe and MHA-Fe groups compared with the control group(P>0.05).2)Serum interleukin-6(IL-6)and sperm malondialdehyde(MDA)levels in the 80 mg/kg or 115 mg/kg MHA-Fe groups were lower than those in the control group(P<0.05),and higher serum superoxide dismutase levels and lower MDA levels in the 115 mg/kg MHA-Fe group(P<0.05).3)Boars in the 80 mg/kg or 115 mg/kg Gly-Fe and MHA-Fe groups had lower serum hepcidin(P<0.01),ferritin(P<0.05),and transferrin receptor(P<0.01)concentrations,and boars in the 115 mg/kg MHA-Fe group had higher seminal plasma Fe concentrations compared with the control group.4)Boars in the 80 mg/kg and 115 mg/kg MHA-Fe groups had lower abnormal sperm rate and in situ oscillating sperm ratio compared to the control group at weeks 12 and/or 16 of the ***,the effect of Gly-Fe on improving semen quality in boars was not evident.5)Serum IL-6 level was positively correlated with hepcidin concentration(P<0.05),which in turn was significantly positively correlated with abnormal sperm rate(P<0.05).Furthermore,significant correlations were also found between indicators of iron status and oxidative stress and semen quality ***

关键词： Adult boars Iron level Iron source Iron status Semen quality

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Effect of gestation dietary methionine-to-lysine ratio on methionine metabolism and antioxidant ability of high-prolific sows

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Animal Nutrition 2021年第3期7卷 849-858页

作者： Mao Xia Jie Peng Chenbin Cui Qiongyao Gu Linjie Zhou Chao Wang Haiqing Sun Jian Peng hongkui wei Department of Animal Nutrition and Feed Science College of Animal Science and TechnologyHuazhong Agricultural UniversityWuhan 430070China Innovation Institute of Healthy Fariming College of Animal Sciences and TechnologyZhongkai University of Agriculture and EngineeringGuangzhouGuangdong 510225China Department of Chemistry College of ScienceHuazhong Agricultural UniversityWuhan 430070China YangXiang Joint Stock Company Guigang 537000China

The uptake and metabolism of methionine(Met)are critical for epigenetic regulation,redox homeostasis,and embryo *** previous study showed that appropriate supplementation of dietary Met promoted the birth weight and placental angiogenesis of high-prolific *** further explore the metabolic effect of Met on pregnant sows,we have evaluated the influence of dietary Met level on Met metabolism,and the relationship between metabolites of Met and reproductive performance,antioxi-dant ability,and placental angiogenesis throughout the gestation of high-prolific *** sows(the 3rd parity,Large White)were randomly divided into 5 groups that were fed diets with standardized ileal digestible(SID)methionine-to-lysine(Met:Lys)ratios of 0.27(control),0.32,0.37,0.42,and 0.47 from the mating day(gestational d 0,G0d)until the farrowing ***-MS/MS analysis was used to simulta-neously evaluate the metabolites related to Met,e.g.S-adenosylmethionine(SAM),S-adenosylhomo-cysteine(SAH),homocysteine(Hcy),cysteine(Cys),and glutathione(GSH).The concentration of SAM and SAH in plasma had significant fluctuations,especially in late *** dietary Met sup-plementation significantly improved the plasma SAM and methylation potential(SAM-to-SAH ratio)at d 114 of pregnancy(G114d).Moreover,a positive association of the plasma SAM concentration at G114d was observed with the litter weight of born alive(P<0.05;R2=0.58).Furthermore,Hcy concentration in plasma was at the lowest level for 0.37 ratio group at ***,it significantly increased during late ***,there were negative correlations between plasma Hcy concentration at G114d(P<0.05)and the placental vascular density in the fold and stroma(P<0.05).Compared with the control group,the expression of vascular endothelial growth factor-A(VEGF-A)in the placenta tissue of 0.37 ratio group increased significantly(P<0.05).Collectively,these findings indicate that dietary Met:Lys ratio(0.37 to 0.57)in

关键词： Antioxidant ability Dietary methionine High-prolific sows Metabolism Reproductive performance Placental angiogenesis

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Effects of different amino acid levels and a carvacrol-thymol blend on growth performance and intestinal health of weaned pigs

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Journal of Animal Science and Biotechnology 2022年第5期13卷 1428-1439页

作者： Yanan Wang Zhipeng Yang Yuanfei Zhou Jiajian Tan Haiqing Sun Defa Sun Yuyun Mu Jian Peng hongkui wei Department of Animal Nutrition and Feed Science College of Animal Science and TechnologyHuazhong Agricultural UniversityWuhan 430070China Guangxi Yangxiang Co. LtdGuigang 537000China Novus International Trading(Shanghai)Co.Ltd Shanghai 200080China The Cooperative Innovation Center for Sustainable Pig Production Wuhan 430070China

Background:Over the past years,antibiotic growth promoter had been restricted in animal husbandry production in many countries because of antimicrobial resistance and foodborne antibiotic ***,the problems of poor intestinal health and low growth efficiency of piglets have not been solved completely in an antibiotic-free diet,and it is urgent to explore alternatives to antimicrobial growth ***:Here,a total of 532 weaned pigs were assigned to one of 4 treatments,the low amino acid(AA)level diet(d 1 to d 14 is 1.35%,d 15 to d 42 is 1.25%)(Low AA),the low AA level diet supplementation with a carvacrol-thymol blend(50 mg carvacrol and 50 mg thymol/kg of diet)(CB)(Low AA+CB),the high AA level diet(d 1 to d 14 is 1.50%,d 15 to d 42 is 1.40%)(High AA),and the high AA level diet supplementation with a CB(High AA+CB),*** we measured growth performance and intestinal health indicators of weaned ***:Results showed that high AA level significantly reduced plasma urea nitrogen,plasma Interleukin-6(IL-6)and fecal lipocalin-2 contents(P<0.05),significantly increased the relative abundance of fecal Lactobacillus and Enterococcus,and had a trend to increase the fecal secretory immunoglobulin A(sIgA)and mucin 2(MUC 2)contents(P<0.05)in piglets,thereby alleviating the diarrhea of piglets and reducing the feed conversion ratio(FCR)of piglets during d 1~14 after *** supplementation with CB significantly increased the activity of plasma antioxidant enzymes T-SOD and GSH-px(P<0.05),while significantly reduced plasma malondialdehyde(MDA),plasma interleukin-1β(IL-1β),plasma endotoxin and D-lactic acid contents(P<0.05).Meanwhile,CB significantly decreased fecal lipocalin-2 contents and the abundance of fecal Escherichia coli(P<0.05).Thus,we hypothesis that dietary supplementation with CB significantly increased the average daily gain(ADG)of piglets(P<0.05)during d 1~14 after weaning through promoting intestinal ***:Th

关键词： Amino acids Antioxidant capacity Carvacrol and thymol Intestinal health Plant extracts Weaned pigs

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Supplementation of branched-chain amino acids in protein-restricted diets modulates the expression levels of amino acid transporters and energy metabolism associated regulators in the adipose tissue of growing pigs

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Animal Nutrition 2016年第1期2卷 24-32页

作者： Yinghui Li hongkui wei Fengna Li Shuai Chen Yehui Duan Qiuping Guo Yingying Liu Yulong Yin Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central Ministry of AgricultureHunan Provincial Engineering Research Center of Healthy LivestockKey Laboratory of Agro-Ecological Processes in Subtropical Region Institute of Subtropical AgricultureChinese Academy of Sciences University of Chinese Academy of Sciences College of Animal Sciences Huazhong Agricultural University Hunan Co-Innovation Center of Animal Production Safety (CICAPS) Changsha Lvye Biotechnology Limited Company Academician Expert Workstation Hang Zhou King Techina Limited Company Academician Expert Workstation

This experiment was conducted to investigate the effects of branched-chain amino acids(BCAA)supplemented in protein-restricted diets on the growth performance and the expression profile of amino acid transporters and energy metabolism related regulators in the white adipose tissue(WAT)of different regional depots including dorsal subcutaneous adipose(DSA) and abdominal subcutaneous adipose(ASA), A total of 24 crossbred barrows(7.40 ± 0.70 kg) were randomly divided into 4 groups and were fed the following isocaloric diets for 33 days: 1) a recommended adequate protein diet(AP, 20% CP, as a positive control); 2) a low protein diet(LP, 17% CP); 3) the LP diet supplemented with BCAA(LP + B, 17% CP) to reach the same level of the AP diet group; 4) the LP diet supplemented with 2 times the amount of BCAA(LP + 2B, 17% CP). The daily gain and daily feed intake of the LP diet group were the lowest among all the treatments(P 0.05). Moreover, BCAA supplementation down-regulated the expression levels of amino acid transporters including L-type amino acid transporter 1 and sodium-coupled neutral amino acid transporter 2 in DSA, but up-regulated the expression level of Ltype amino acid transporter 4 in ASA(P < 0.05), Meanwhile, the energy sensor AMP-activated protein kinase α was activated in the DSA of pigs fed LP diet and in the ASA of the pigs fed AP or LP + 2B diets(P < 0.05). The mRNA expression profile of the selected mitochondrial component and mitochondrial biogenesis associated regulators in DSA and ASA also responded differently to dietary BCAA supplementation. These results suggested that the growth performance of growing pigs fed protein restricted diets supplemented with BCAA could ca

关键词： Branched-chain amino acid Protein-restricted diet Energy metabolism White adipose tissue Pig

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Effects of dietary protein restriction on muscle fiber characteristics and m TORC1 pathway in the skeletal muscle of growing-finishing pigs

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Journal of Animal Science and Biotechnology 2017年第1期8卷 170-181页

作者： Yinghui Li Fengna Li Li Wu hongkui wei Yingying Liu Tiejun Li Bie Tan Xiangfeng Kong Kang Yao Shuai Chen Fei Wu Yehui Duan Yulong Yin Key Laboratory of Agro-ecological Processes in Subtropical Region Institute of Subtropical Agriculture Chinese Academy of Sciences Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central Ministry of Agriculture No. 644 Yuanda Road Furong District Changsha Hunan 410125 China University of Chinese Academy of Sciences Beijing 100039 China Hunan Co-Innovation Center of Animal Production Safety CICAPS Hunan Collaborative Innovation Center for Utilization of Botanical Functional Ingredients Changsha 410128 China College of Animal Sciences Huazhong Agricultural University Wuhan Hubei 430070 China School of Biology Hunan Normal University Changsha Hunan 410018 China

Background： To investigate the effects of dietary crude protein（CP） restriction on muscle fiber characteristics and key regulators related to protein deposition in skeletal muscle, a total of 18 growing-finishing pigs（62.30 ± 0.88 kg）were allotted to 3 groups and fed with the recommended adequate protein（AP, 16 % CP） diet, moderately restricted protein（MP, 13 % CP） diet and low protein（LP, 10 % CP） diet, respectively. The skeletal muscle of different locations in pigs, including longissimus dorsi muscle（LDM）, psoas major muscle（PMM） and biceps femoris muscle（BFM） were collected and ***： Results showed that growing-finishing pigs fed the MP or AP diet improved（P 〈 0.01） the average daily gain and feed： gain ratio compared with those fed the LP diet, and the MP diet tended to increase（P = 0.09） the weight of LDM. Moreover, the ATP content and energy charge value were varied among muscle samples from different locations of pigs fed the reduced protein diets. We also observed that pigs fed the MP diet up-regulated（P 〈 0.05） muscular m RNA expression of all the selected key genes, except that myosin heavy chain（My HC） IIb,My HC IIx, while m RNA expression of ubiquitin ligases genes was not affected by dietary CP level. Additionally, the activation of mammalian target of rapamycin complex 1（m TORC1） pathway was stimulated（P 〈 0.05） in skeletal muscle of the pigs fed the MP or AP diet compared with those fed the LP ***： The results suggest that the pigs fed the MP diet could catch up to the growth performance and the LDM weight of the pigs fed the AP diet, and the underlying mechanism may be partly due to the alteration in energy status, modulation of muscle fiber characteristics and m TORC1 activation as well as its downstream effectors in skeletal muscle of different locations in growing-finishing pigs.

关键词： Dietary protein restriction Energy status Growing-finishing pigs m TORC1 Muscle fiber type

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公猪精液品质营养调控研究进展

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动物营养学报 2020年第10期32卷 4540-4549页

作者：魏宏逵彭健华中农业大学动物科技学院动物营养与饲料科学系武汉430070 生猪健康养殖协同中心武汉430070

优良的精液品质是发挥公猪遗传性能的重要保障。公猪的精液品质受多种因素影响。其中,精子膜中脂肪酸组成会影响精子膜的流动性和完整性,从而对精子活力产生重要影响。氧化应激是影响精液品质的另一个重要因素。通过营养调控可以有效地... 详细信息

优良的精液品质是发挥公猪遗传性能的重要保障。公猪的精液品质受多种因素影响。其中,精子膜中脂肪酸组成会影响精子膜的流动性和完整性,从而对精子活力产生重要影响。氧化应激是影响精液品质的另一个重要因素。通过营养调控可以有效地改善精子的脂肪酸组成,提高精液的抗氧化状态,改善精液品质。本文综述了近年来国内外的相关研究成果,从功能性脂肪酸、氨基酸、维生素、矿物元素及植物提取物等方面分析了改善公猪精液品质的营养调控措施,阐述了营养调控在改善精液品质中的可行性和具体措施,旨在为生猪繁殖研究人员及养猪生产企业生产公猪优质精液提供理论依据和方案参考。

关键词：公猪精液品质营养脂肪酸氨基酸

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