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首页> 外文期刊>Nutrition Abstracts and Reviews, Series B. Livestock Feeds and Feeding >Selenium supplementation in heat-stressed poultry
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Selenium supplementation in heat-stressed poultry

机译：热应激家禽中的硒补充

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摘要

Stress evoked by high ambient temperature results in economic loss through reducing feed intake while decreasing nutrient utilization, growth rate, egg production, egg quality and feed efficiency. Moreover, environmental stress leads to oxidative stress and reduces the antioxidant status of the bird in vivo, resulting in increased oxidative damage and lowered plasma concentrations of antioxidant vitamins (vitamin C, vitamin E) and minerals (zinc and selenium). Selenium is an essential trace element for animals and humans because of its role in the antioxidant enzyme glutathione peroxidase which protects cell membranes from damage caused by lipid peroxidation. Selenium deficiency causes several disorders in animal species and severe health problems in humans. Selenium supplementation has been found to eliminate selenium deficiency problems. Selenium is also used in the diets of heat-stressed poultry because of its reported benefits. This review deals with the effects of dietary selenium supplementation in poultry maintained at a high ambient temperature.
机译：高环境温度引起的压力会通过减少采食量，同时降低养分利用率，生长速度，产蛋量，蛋质和饲料效率而造成经济损失。此外，环境压力会导致体内氧化应激并降低家禽的抗氧化状态，从而导致氧化损伤增加，抗氧化剂维生素（维生素C，维生素E）和矿物质（锌和硒）的血浆浓度降低。硒是动物和人类必需的微量元素，因为它在抗氧化酶谷胱甘肽过氧化物酶中起作用，该酶保护细胞膜免受脂质过氧化引起的损害。硒缺乏会导致多种动物疾病，并给人类带来严重的健康问题。已经发现补充硒可以消除硒缺乏的问题。由于硒的好处，它也被用于热应激家禽的饮食中。这项审查涉及膳食硒补充对保持在高环境温度的家禽的影响。

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