蛋鸡耐热力与耗氧量和体重变化的关系  

STUDIES ON THE HEAT TOLERANCE ANDOXYGEN CONSUMPTION OF LAYERS

作　　者：江逆[1] 吴中红[1] 王新谋[1] 刘春燕[1] 安永义[1] 王军 

机构地区：[1]中国农业大学动物科技学院

出　　处：《动物营养学报》1999年第1期32-36,共5页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：国家自然科学基金

摘　　要：在常温及高温（２５、３２、３５、３８℃）下，用１５只２０周龄Ｈｉｓｅｘ健康的青年蛋鸡在小型气体代谢箱中进行耗氧量测定。结果表明，在３２、３５和３８℃高温下，耐热鸡的耗氧量较不耐热鸡低，３５、３８℃下差异达显著水平，３８℃下的失重也明显低于不耐热鸡。以３８℃下的体温升高幅度为指标的鸡耐热力，与３５℃下的耗氧量呈显著正相关（ｒ＝０．６４）。The experiment was carried out in a small respiratory chamber,group by group of 15 Hisex layers was kept in the environment of four kind air temperatures(25,32,35,38℃)for 3 hours separately.Oxygen consumption,loss of body weight and body temperature were measured during the trial.At high ambient air temperature(32,35,38℃),the oxygen consumption of high heat tolerance group was lower than that of control(at 35 and 38℃,the difference was significant statistically,P<0.05).In the ambient air environment of 38℃,losing body weight was obviously lower than that of control,the relationship between layers heat tolerance and oxygen consumption(at 35℃) was significant(r=0.64).

关 键 词：蛋鸡 高温 耐热力 耗氧量 失重 

分 类 号：S831.1[农业科学—畜牧学]