Potential Role of Amino Acids in the Adaptation of Chicks and Market-Age Broilers to Heat Stress.
Potential Role of Amino Acids in the Adaptation of Chicks and Market-Age Broilers to Heat Stress.
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DOI：
10.3389/fvets.2020.610541
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发表时间：
2020
影响因子：
3.2
通讯作者：
Furuse M
中科院分区：
文献类型：
--
作者：
Chowdhury VS;Han G;Eltahan HM;Haraguchi S;Gilbert ER;Cline MA;Cockrem JF;Bungo T;Furuse M
全球变暖导致的平均气温升高以及更频繁和更长时间的高环境温度（HT）将日益影响全球家禽生产。因此，重要的是要了解HT如何影响家禽生理学，并确定新的方法，以促进改善适应，从而最大限度地提高家禽的生长，健康和福利。氨基酸在许多生理功能中发挥作用，包括应激反应，并且它们的相对需求和代谢在暴露于HT期间发生组织特异性改变。例如，HT降低小鸡血浆瓜氨酸（Cit）和胚胎大脑和肝脏中的亮氨酸（Leu）。氨基酸的这些变化的生理意义可能涉及保护身体免受热应激。因此，许多研究都集中在评估饮食管理的氨基酸的影响。结果表明，口服l-Cit可降低蛋鸡体温，提高耐热性。当l-亮氨酸注射到可育的肉鸡蛋，以检查暴露于HT的胚胎中亮氨酸减少的原因时，在卵内饲喂l-亮氨酸提高了肉仔鸡的耐热性。还发现在卵内注射l-亮氨酸可抑制暴露于慢性HT的市场年龄肉鸡的体重减轻，从而有可能开发一种新的生物技术，旨在最大限度地减少夏季热应激期间家禽生产者的经济损失。本文就高温处理对雏鸡和商品代肉鸡氨基酸代谢的影响及其意义进行了综述和讨论。
Increased average air temperatures and more frequent and prolonged periods of high ambient temperature (HT) associated with global warming will increasingly affect worldwide poultry production. It is thus important to understand how HT impacts poultry physiology and to identify novel approaches to facilitate improved adaptation and thereby maximize poultry growth, health and welfare. Amino acids play a role in many physiological functions, including stress responses, and their relative demand and metabolism are altered tissue-specifically during exposure to HT. For instance, HT decreases plasma citrulline (Cit) in chicks and leucine (Leu) in the embryonic brain and liver. The physiological significance of these changes in amino acids may involve protection of the body from heat stress. Thus, numerous studies have focused on evaluating the effects of dietary administration of amino acids. It was found that oral l-Cit lowered body temperature and increased thermotolerance in layer chicks. When l-Leu was injected into fertile broiler eggs to examine the cause of reduction of Leu in embryos exposed to HT, in ovo feeding of l-Leu improved thermotolerance in broiler chicks. In ovo injection of l-Leu was also found to inhibit weight loss in market-age broilers exposed to chronic HT, giving rise to the possibility of developing a novel biotechnology aimed at minimizing the economic losses to poultry producers during summer heat stress. These findings and the significance of amino acid metabolism in chicks and market-age broilers under HT are summarized and discussed in this review.
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影响因子：
2.5
作者：
Eltahan HM;Bahry MA;Yang H;Han G;Nguyen LTN;Ikeda H;Ali MN;Amber KA;Furuse M;Chowdhury VS
通讯作者：
Chowdhury VS
影响因子：
--
作者：
BALNAVE, D;OLIVA, AG
通讯作者：
OLIVA, AG
L-亮氨酸会增加每日体温，并提供肉鸡小鸡的耐热性。
DOI：
10.5713/ajas.18.0677
发表时间：
2019-06
期刊：
Asian-Australasian journal of animal sciences
影响因子：
--
作者：
Han G;Yang H;Wang Y;Haraguchi S;Miyazaki T;Bungo T;Tashiro K;Furuse M;Chowdhury VS
通讯作者：
Chowdhury VS
影响因子：
2.7
作者：
Chowdhury, Vishwajit S.;Han, Guofeng;Furuse, Mitsuhiro
通讯作者：
Furuse, Mitsuhiro
影响因子：
2
作者：
Dai, S. F.;Gao, F.;Zhou, G. H.
通讯作者：
Zhou, G. H.