文献类型： 外文期刊
作者： Fouad, Ahmed Mohamed 1 ; El-Senousey, HebatAllah Kasem 1 ; Ruan, Dong 1 ; Wang, Shuang 1 ; Xia, Weiguang 1 ; Zheng, 1 ;
作者机构： 1.Guangdong Acad Agr Sci, Guangdong Key Lab Anim Breeding & Nutr,Inst Anim, Guangdong Publ Lab Anim Breeding & Nutr,State Key, Key Lab Anim Nutr & Feed Sci South China,Minist A, Guangzhou, Peoples R China
2.Cairo Univ, Fac Agr, Dept Anim Prod, Giza, Egypt
关键词： immunity; poultry; productivity; stress; tryptophan
期刊名称：JOURNAL OF ANIMAL PHYSIOLOGY AND ANIMAL NUTRITION （ 影响因子：2.13； 五年影响因子：2.322 ）
ISSN： 0931-2439
年卷期：
页码：
收录情况： SCI
摘要： Many studies have shown that productivity, immune system, antioxidant status, and meat and egg quality can be optimized by dietary supplementation with amino acids that are not usually added to poultry diets. Understanding the effects of these amino acids may encourage feed manufacturers and poultry producers to include them as additives. One of these amino acids is tryptophan (Trp). The importance of Trp is directly related to its role in protein anabolism and indirectly related to its metabolites such as serotonin and melatonin. Thus, Trp could affect the secretion of hormones, development of immune organs, meat and egg production, and meat and egg quality in poultry raised under controlled or stressed conditions. Therefore, this review discusses the main roles of Trp in poultry production and its mode (s) of action in order to help poultry producers decide whether they need to add Trp to poultry diets. Further areas of research are also identified to address information gaps.
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