摘要
赖氨酸作为猪饲粮的第一限制性氨基酸,也是构建理想蛋白质模型的关键。赖氨酸能够影响猪的生长性能、养分消化率、机体免疫、肠道健康、体内蛋白质的合成。赖氨酸缺乏或者过量都会对猪各方面产生影响。所以,探究饲粮中赖氨酸添加水平及赖氨酸需要量对猪的生产性能及各项指标的影响极为重要。作者基于国内外近年来对猪赖氨酸相关的研究发现,饲粮赖氨酸水平比推荐量低15%时会诱导炎症。而适量的赖氨酸可增强猪的细胞免疫,进而影响猪肠道健康,促进肠上皮细胞增殖,增强细胞活力,提高猪的养分消化率,并可通过调控卫星细胞促进骨骼肌合成;作者同时总结了仔猪、育肥猪、公猪、母猪以及低蛋白质饲粮条件下赖氨酸的需要量,以期为赖氨酸在动物生产中的合理应用提供科学依据。
Lysine,as the first limiting amino acid of pig diet,is also the key to construct an ideal protein model.Lysine can improve the growth performance and nutrient digestibility,enhance body immunity,maintain intestinal health,affect protein synthesis in pigs.Lack or excess of lysine will have an impact on all aspects of pigs.Therefore,it is very important to explore the effect of lysine addition level and lysine requirement in the diet on pig performance and various indicators.Based on the relevant research on pig lysine in recent years at home and abroad,it was found that less than 15%of the recommended amount of lysine could induce inflammation.However,appropriate lysine could enhance the cellular immunity of piglets,and then affect the intestinal health of pigs,promote the proliferation of intestinal epithelial cells,enhance cell vitality,improve nutrient digestion of pigs,and promote skeletal muscle synthesis by regulating satellite cells.At the same time,the authors synthesized the lysine requirements of piglets,finishing pigs,boars and sows and low-protein diets,in order to provide scientific basis for the rational application of lysine in animal production.
作者
姚康
曹舒婷
蒋宗勇
王丽
YAO Kang;CAO Shuting;JIANG Zongyong;WANG Li(School of Animal Science and Technology,School of Animal Medicine,Huazhong Agricultural University,Wuhan 430070,China;Guangdong Key Laboratory of Animal Breeding and Nutrition,Maoming Branch,Guangdong Laboratory for Lingnan Modern Agriculture,State Key Laboratory of Livestock and Poultry Breeding,Key Laboratory of Animal Nutrition and Feed Science in South China,Ministry of Agriculture and Rural Affairs,Institute of Animal Science,Guangdong Academy of Agricultural Sciences,Guangzhou 510640,China)
出处
《中国畜牧兽医》
CAS
CSCD
北大核心
2023年第4期1364-1374,共11页
China Animal Husbandry & Veterinary Medicine
基金
十四五重点研发专项(2021YFD1300402)
茂名实验室科研启动项目(2021TDQD002)
财政部和农业农村部:国家现代农业产业技术体系(CARS-35)
广东省农业科学院科技计划项目(R2020PY-JG009、202106TD)。
关键词
赖氨酸
猪
需要量
动物生产
lysine
pig
requirement
animal production
