摘要
根据呼吸活动的变化可将罗曼产蛋鸡４３℃热休克的发展分为呼吸上升、稳定和下降（休克）三期。根据行为变化又可将其休克期分为兴奋、衰竭和临床死亡三期。呼吸上升、呼吸稳定、兴奋和衰竭期的平均呼吸频率分别为２７～２３８，２３８～２００，２００～１２２和１２２～０次／ｎｕｎ，平均体温相应为４１．６～４３．７℃，４３．７～４５．４℃，４５．４～４６．２℃和４６．２～４７．０℃。体温决定了热休克的发展，而实验中观察到热休克的直接死因为呼吸衰竭。在饮水实验组中，饮水鸡在体温４３．７～４４．５℃之间所维持的时间较不饮水鸡长，提示水的摄入可提高鸡的抗热应激能力。
According to the changes of respiratory activity,the develpment of heat shock in Romanlaying hens can be divided into three respiratory periods:ascending,stabilizing and descending(shock).The latter includs excitation,eXhaustion and clinic death periods. During the ascend-ing, stabilizing, excitation and exhaustion periods,the average respiration rate were 27～238,238～200,200～122 and 120～0 times/per minute respectively, the related average body tem-perarure were 41.6～43.7,43.7～45.4,45.4～46.2 and 46.2～47.0℃respectively。Thebody temperature determines the development of heat shock,but it was observed that the ex-haustion of respiration resulted in the death in the experiment.When fed water,the body tem-perature between 43.7～44. 5℃ increases more slowly than that of the no-water group,which suggests that water consuming can increase the ability of antiheat stress in laying hens。
出处
《江西农业大学学报》
CAS
CSCD
1995年第1期83-86,共4页
Acta Agriculturae Universitatis Jiangxiensis
基金
国家自然科学基金
关键词
热休克
呼吸活动
鸡病
卵用鸡
laying hens
heat shock
respiratory activity
