摘要
本项测定是1989年在江西清江种草养畜试验站对湖羊与新西兰罗姆尼和英国罗姆尼羊在30℃以下常温和30℃以上高温环境下进行的。以湖羊作为适应高温环境的南方羊种与外来品种进行比较.结果表明:体温和心跳频率在气温30℃以下时,品种间差异不显著(P>0.05),呼吸频率在品种间差异显著或非常显著(P<0.05或 P<0.01);在高温环境下,湖羊的三项生理常数值与两个外来品种的差异都非常显著。外来品种新罗和英罗之间的差异除体温不显著外(P>0.05),心跳频率和呼吸频率差异亦都显著(P<0.05)。三品种羊的生理常数与气温有一定程度的直线相关关系.根据测定结果,南方养羊在高温期间宜采取上午早出早归,下午晚出晚归,中午令其在通风良好避免阳光直射的阴凉处栖息的放牧管理方法,使其安全地渡过高温季节.
Some physiological parameters of England Rommney and New Zealand Ro-mmney were compared with that of“Tai Hu”sheep in the air temperature ofboth below 30℃ and above 30℃.When the air temperature was below 30℃,the differences between breeds were not significant,in the body temperature andpalpitation frequency(P>0.05),but very much significant in breath frequency(P<0.05,P<0.01).When the air temperature was above 30℃,there were sig-nificant differences in the three parameters between‘Tai Hu’sheep and Rommney.The differences between New Zealand Rommney and England Rommney was notsignificant in body temperature(P>0.05),but was significant in palpitationfrequency and breath frequency(P<0.05).There were certain linear interrel-ations between those parameters and air temperature.
出处
《江西农业大学学报》
CAS
CSCD
1991年第6期356-363,共8页
Acta Agriculturae Universitatis Jiangxiensis
