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首页> 外文期刊>Revista Brasileira de Ciência Avícola >Effects of Light Intensity on Growth, Anti-Stress Ability and Immune Function in Yellow Feathered Broilers
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Effects of Light Intensity on Growth, Anti-Stress Ability and Immune Function in Yellow Feathered Broilers

机译：光照强度对黄羽肉鸡生长，抗应激能力和免疫功能的影响

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An experiment was conducted to investigate the effects of light intensity on growth, anti-stress ability, and immune function of yellow feathered broilers. A total of 480 one-day-old male Lingnan yellow feathered broilers were randomly allocated to 4 treatments based on light intensity (1, 5, 20 and 80 lx) with 8 replicates of 15 chicks each. The experiment lasted for 63 days. Compared with those under high light intensity, broilers exposed to low light intensity had higher ( p 0.05) total antioxidant capacity (T-AOC), glutathione peroxidase (GSH-Px), a-Naphthylacetate esterase (ANAE + ), antibody titer, but lower ( p 0.05) malonaldehyde (MDA) levels and heterophil/lymphocyte ratio (H/L). There was a linear effect for T-AOC( p= 0.002), GSH-Px( p≤ 0.047), MDA ( p= 0.003), H/L( p≤ 0.014), ANAE + ( p≤ 0.044), and antibody titer ( p≤ 0.021) with T-AOC, GSH-Px, ANAE + , and antibody titer increased significantly as light intensity decreased, whereas MDA and H/L were decreased with the decrease in light intensity. These results suggested that broilers under low light intensity could have similar performance, better anti-stress ability, stronger immune function, and more efficient in energy usage as compared with those exposed to high light intensity environment.
机译：进行了一项实验，以研究光强度对黄羽肉鸡生长，抗应激能力和免疫功能的影响。根据光照强度（1、5、20和80 lx），将总共480只1日龄的雄性岭南黄羽肉鸡随机分配到4种处理方法，每组15只雏鸡进行8次重复。实验持续了63天。与高光照下的肉鸡相比，暴露在低光照下的肉鸡的总抗氧化剂能力（T-AOC），谷胱甘肽过氧化物酶（GSH-Px），α-萘乙酸酯酶（ANAE +），抗体效价，但丙二醛（MDA）含量和异源性/淋巴细胞比率（H / L）较低（p <0.05）。 T-AOC（p = 0.002），GSH-Px（p≤0.047），MDA（p = 0.003），H / L（p≤0.014），ANAE +（p≤0.044）和抗体具有线性效应T-AOC，GSH-Px，ANAE +的抗体效价（p≤0.021）和抗体效价随光强度的降低而显着增加，而MDA和H / L随光强度的降低而降低。这些结果表明，与暴露于高光强度环境的肉鸡相比，低光强度的肉鸡具有相似的性能，更好的抗应激能力，更强的免疫功能以及更高的能量利用效率。

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