摘要
２００只１４日龄健康艾维茵肉仔鸡随机等分为四组，Ａ、Ｂ两组分别在饲料中添加０．２２５％的抗应激Ⅰ号和抗应激Ⅱ号，Ｃ组为热应激对照组，Ｄ组为常温对照组。Ａ、Ｂ、Ｃ三组鸡舍温度为２８，３２～３６℃，４９日龄时称重、杀死、取材作石蜡切片，观察免疫器官的组织学结构。结果表明，Ｃ组体重明显低于Ａ、Ｂ、Ｄ组，Ａ、Ｂ组鸡体重与Ｄ组间差异不显著。热应激对各免疫器官有明显的损伤性和免疫抑制样变化，而抗应激药物对免疫器官有明显的保护作用，从组织学角度看，抗应激药物可明显地对抗热应激所造成的免疫抑制，使免疫器官组织学结构接近正常水平。
day-old broiler 200 were grouped A,B,C and D freely,group A and B were fed medicine Ⅰ and Ⅱ at the content of 0.225% against heat stress respectively,group C was from heat stress broiler,group D was control.Temperature of broilers in group A,B and C was in the range of 28℃,32℃ to 36℃.All broilers were weighed,dissected and cut sections of immune organ emmbeded by paraffin to observe the variance of histology on day 49. It showed weight of group C was lower than that of group A,B and D(P<0.05).Heat stress damaged immune organ and caused immunosupression significantly,and medicine Ⅰ and Ⅱ removed immune suppression and protect immune organ against heat stress to broiler.
出处
《中国家禽》
北大核心
1998年第8期11-13,共3页
China Poultry
关键词
药物
热应激
肉仔鸡
免疫器官
medicine against heat stress
heat stress
broiler
immune organ
