Position: Home > Articles > Investigation on reproductive performance of Hequ Tibetan Mastiff
Journal of Gansu Agricultural University
2002,37
(1)
71-74
河曲藏獒繁殖性能研究
作 者：
郡珣;崔泰保
单 位：
甘肃农业大学动物科学技术学院
关键词：
河曲藏赘;繁殖性能;发情率;受胎率;初生重;断奶重
摘 要：
对原产地组和兰州核心群组河曲藏荚母犬繁殖性能研究表明，该犬年发情一次，９～１１月发情母犬占全年总发情数的８３．３％。发情率、受胎率主要受母犬年龄及体况影响，正常条件下，３岁龄母犬发情率和受胎率均可达到１００％。幼犬初生重为０．３４～０．５７ｋｇ，断奶重 ２．９３～３．５３ ｋｇ。初生重与活产仔数之间呈负相关，ｒ＝－０．６１；而与断奶重之间呈正相关，ｒ＝０．７３。活产仔数为 ６～８只时，幼犬的初生重和断奶重较大。
译 名：
Investigation on reproductive performance of Hequ Tibetan Mastiff
作 者：
YAN Xun, CUI Tai-bao (College of Animal Science and Technology Gansu Agricultural University Lanzhou 730070, China)
关键词：
Hequ Tibetan Mastiff; reproduction performance; estrus rate; pregnancy rate; birth weight; weaning weight
摘 要：
Reproduction performance of Hequ Tibetan Mastiff (HTM) were investigated on two groups of betches, one of group from Maqu County, the native area of HTM, Gannan Tibetan Autonomous prefecture, one from preserving population of HTM in Lanzhou. HTM bitch estrused once a year, mainly in the period of September to November, making up 83.7 % of total of estrusing bitch. Under normal body condition, estrus and pregnancy rates were affected by its age, and the two indexes were 100 % at 3 year-age. The birth weight and weaning weight were 0.34-0.57kg, 2.93-3.53kg, respectively. The coefficient of correlation between birth wt. and living litter size at birth was -0.061, and weaning wt. was 0.73.
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