| 应激降低动物生产性能的机制 |
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| 引用本文： | 胡骁飞,魏凤仙.应激降低动物生产性能的机制[J].家畜生态,2009(3). |
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| 作者姓名： | 胡骁飞 魏凤仙 |
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| 作者单位： | 河南省农业科学院省动物免疫学重点实验室;河南省农业科学院畜牧兽医研究所; |
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| 摘 要： | 动物面临着各种应激。应激降低了动物血液中的酪氨酸浓度,而酪氨酸是合成甲状腺素的原料。甲状腺机能低下时减缓了胃肠道的蠕动,延长胃的排空时间,导致动物采食量的降低,降低了动物生产性能。本文综述了这个机制。
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| 关 键 词： | 应激 采食量 生产性能 酪氨酸 甲状腺素 |
The Mechanism of Production Performance Decreased by Stress |
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| HU Xiao-fei,WEI Feng-xian.The Mechanism of Production Performance Decreased by Stress[J].Ecology of Domestic Animal,2009(3). |
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| Authors: | HU Xiao-fei WEI Feng-xian |
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| Institution: | 1.Henan Key Laboratory of Animal Immunology;Henan Academy of Agricultural Science;Zhengzhou Henan 450002;2.Institute of Animal Husbandry and Veterinary;Zhengzhou Henan 450002 |
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| Abstract: | All kinds of stressors exist around animals.Stress declined the plasma tyrosine concentration of animals,and tyrosine is the precursor material of thyroxine.Hypothyroidism decreased the gastrointestinal motility and prolonged gastric emptying,which in turn resulted in the lowered feed intake,and subsequently decreased performance of animal.The mechanism was reviewed in the present article. |
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| Keywords: | Stress feed intake amount Production Performance Tyrosine Thyroxine |
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