摘要
巴马香猪产于广西巴马县，在亚热带生态环境下，形成了较强的耐热性，表现出：①具有利于散热、耐热的矮小体型外貌（成年体重５０ｋｇ左右）和行为特征；②夏季仍能保持正常的繁殖力；③在相同环境温度下，各项生理指标均低于杂种对照组。如３０℃时，巴马香猪和对照组体温分别为３８．７５℃和４０．１１℃；呼吸频率为５６．９７和８３．３８次／分；心率８９．９３和９９．０４次／分。随着环境温度的升高，巴马香猪各项生理指标波动幅度明显小于对照组。血液生理生化指标大多稍低、血红蛋白稍高于对照组，如２８．７℃时，血红蛋白含量分别为１５．０２和１３．０７ｇ／１００ｍｌ．血清甲状腺素含量较低是巴马猪耐热性较强的原因之一。
Abstract Bama Xiang pigs originated in Bama County,Guangxi Province possessedgreat heat resistence in the subtropical enviroments which reflected in the following re-spects:a)Bama Xiang pigs have a miniature body type which makes heat exchange more of-fective. b)Compared to crossbred pigs BaMa xiang pigs had a lower body temperature,low-er respiration rate and lower heart rate when placed in a 30℃ enviroment.c)With in creasing enviromental temperature the physiological parameters changed less and most of these parameters trended to be lower in Bama xiang pig than in cross-bred except that the former had higher hemoglobin content than the latter. d)Lower content of serum tryroxine in Bama Xiang pig is one of the main reasons for the greater heat resistence of animal.
出处
《家畜生态》
1995年第4期18-21,共4页
Ecology of Domestic Animal
