温热环境对肉仔鸡胸囊肿发生的影响  

Effect of thermal environment on incidence of breast blister in broilers

作　　者：赵芙蓉[1] 施正香[2] 耿爱莲[2] 李保明[2] 

机构地区：[1]河南科技大学动物科技学院,洛阳471003 [2]中国农业大学水利与土木工程学院,北京100083

出　　处：《农业工程学报》2009年第4期206-209,共4页Transactions of the Chinese Society of Agricultural Engineering

基　　金：国家"十一五"科技支撑重点项目(2006BAD14B01);河南科技大学博士基金项目

摘　　要：为探讨不同温热环境对肉仔鸡胸囊肿发生的影响,该试验研究了生产实际中夏季和秋季的鸡舍环境温湿指数(THI)、温度和相对湿度(RH)的变化以及对肉仔鸡胸囊肿发生率的影响。结果表明,夏季鸡舍环境中平均THI、温度和RH均高于秋季,尤其在肉仔鸡6周龄时夏季比秋季THI、最高平均温度和RH分别高4.3、7.3℃和13%。而肉仔鸡胸囊肿发生率夏季低于秋季,5、6周龄分别下降21.56%和40.22%。夏季和秋季不同的温热环境中,肉仔鸡血液的抗氧化能力发生了显著的变化,血清总抗氧化力(T-AOC)夏季显著大于秋季,丙二醛(MDA)含量则相反,秋季显著大于夏季。因此,本研究表明了高温环境可使肉仔鸡胸囊肿发生率降低,并且,可能与抗氧化能力的提高有关。Temperature-humidity index （THI）, temperature, relative humidity （RH） of chicken house in summer and autumn were investigated for discussing the effect of thermal environment on the incidence of breast blister in broilers. The results showed that average THI, temperature, RH in chicken house were respectively higher in summer than in autumn. They were 4.3, 7.3℃ and 13% higher in summer than in autumn especially when the broilers were six weeks old. Meanwhile, the incidence of breast blister in broilers was lower in summer than in autumn and the incidences of breast blister in broilers in summer were 21.56% and 40.22% lower than in autumn when the broilers were five and six weeks old, respectively. Total Anti-Oxidative Capability（T-AOC） in serum of broilers was significantly higher in summer than in autumn, but Malondiadehyde（MDA） content in serum of broilers was higher in autumn than in summer （P〈0.05）. Therefore, the incidence of breast blister in broilers is lower in summer than in autumn, which maybe related with the improvement of anti-oxidative capability.

关 键 词：环境影响 热应激 热效应 抗氧化能力 肉仔鸡 胸囊肿 

分 类 号：S831.4[农业科学—畜牧学]