Effect of ascorbic acid in heat-stressed poultry
Effect of ascorbic acid in heat-stressed poultry
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DOI：
10.1017/s004393391200058x
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发表时间：
2012-09-01
影响因子：
2.7
通讯作者：
Tufarelli, V.
中科院分区：
文献类型：
--
作者：
Khan, R. U.;Naz, S.;Tufarelli, V.
在已发表的文献中有两篇关于抗坏血酸对家禽生产性能影响的综述。第一篇综述是由Pardue和Thaxton在1986年撰写的，他们回顾了抗坏血酸在减轻家禽热应激的负面影响中的作用。第二篇综述由Whitehead和Keller在2003年提出，他们详细介绍了抗坏血酸对家禽的一般影响，没有考虑“热应激”。第一篇综述缺乏1986年以后发表的文献，而第二篇综述没有描述抗坏血酸在热应激鸟类中的作用。本文综述了抗坏血酸在缓解家禽热应激方面的研究进展。热应激通过降低采食量、营养利用率、生长速度、产蛋量和质量、饲料效率和免疫力，与性能和生产力受损相关。热应激的特征还在于鸟类的抗氧化状态降低，导致氧化应激增加。此外，当鸟类暴露于热应激时，雄性生育能力降低。已发现每公斤饲料补充250毫克抗坏血酸对改善家禽的采食量、体重增加、饲料效率、产蛋量和质量、营养物质消化率、免疫反应和抗氧化状态是最佳的。这项工作汇编了过去和现在的信息抗坏血酸在热应激家禽的作用。
Two reviews are available in published literature relating to the effects of ascorbic acid on poultry performance. The first review was written by Pardue and Thaxton in 1986 who reviewed the role of ascorbic acid in alleviating the negative effect of heat stress in poultry birds. The second review was presented by Whitehead and Keller in 2003, who detailed the general effects of ascorbic acid in poultry birds, not taking into consideration 'heat stress'. The first review is deficient in the literature published after 1986, while the second review does not describe the effect of ascorbic acid in heat stressed birds. The present review describes the past and present knowledge of ascorbic acid in alleviating heat stress in poultry birds with new aspects. Heat stress is associated with compromised performance and productivity through a decline in feed intake, nutrient utilisation, growth rate, egg production and quality, feed efficiency and immunity. Heat stress is also characterised by a reduced antioxidant status in birds, resulting in increased oxidative stress. Moreover, male fertility is decreased when birds are exposed to heat stress. Supplementation of 250 mg of ascorbic acid per kg of feed has been found to be optimum to improve feed intake, body weight gain, feed efficiency, egg production and quality, nutrient digestibility, immune response and antioxidant status in poultry birds. This work compiles past and present information about the role of ascorbic acid in heat-stressed poultry.