摘要
在青藏高原测定高原型和山谷型藏山羊的生长发育和繁殖性能。高原型藏山羊初生重为１．５３±０，１ｋｇ、母羔为１．４１±０．１ｋｇ，２月龄断奶体重公羔为８．８４±１．４１ｋｇ母羔为８．７１±２．１２ｋｇ，周岁公羊为１２．２０±３．２０ｋｇ，母羊为１０．４０±３．１２ｋｇ，成年公羊为２４．０±６．９ｋｇ，母羊为２１．６±３．８２ｋｇ；山谷型藏山羊相应为１．６４±０．３０ｋｇ，１．５６±０．３０ｋｇ，６．４９±１．２７ｋｇ，６．３３±１．１２ｋｇ，１５．５２±２．７６ｋｇ，１４．８６±３．１３ｋｇ，２７．６０±７．７８ｋｇ，２３．２３±４．１８ｋｇ．藏山羊体格较小，高原型大于山谷型。藏山羊的繁殖规律受分布地区气候的影响。在高寒地区高原型藏山羊母羊８～１０月龄出现性行为，初配年龄１８月龄。在气候温暖地区山谷型藏山羊４～６月龄出现性行为，初配年龄８～９月龄。高原型藏山羊发情周期为１４～２０天，发情持续期为１～３天，妊娠期１４５～１５９天，产羔率为８５．６１％，繁殖成活率５４．２４％；山谷型藏山羊相应为１５～２３天、２～４天、１３６～１５７天、１３５．５３％、和１１８．４２％。
The Growth and development and reproductive performance of Tibetan goat of plateau and mountain valley type are measured. The weight of plateau Tibetan goat kid is:male birthweight 1.53±0.1kg,female 1.41±0.1kg;two-month weight:male 8.8±1.41kg,female 8.71±2.12kg;one-year weight:male 12.20±3.30kg,female 21.6±3. 82kg;abeut weight:male 24.0±6. 9kg,female 21±3.82kg.The weight of mountain valley-type Tibetan goat is 1.64±0.30kg,1.56±0.30kg,6. 49±1.27kg,6.33±1. 12kg, 15. 52±2.76kg,14. 86±3.13kg,27.60±7.87kg,23.23±4. 1 8kg ,respoctively. Compared with the mountain-valley type,the boody conformation of plateau type is bigger.The repreductive regularity of Tibetan goat is influenced by the climate of the area. The sexual behavior of plateau Tibetan goat apprears at the age of 8～10months and the first breading age is 18 months old. In the warm area the sexual behavior of the mountain Tibetan goat is 4 ～ 6months,8～9months old reepoctively. The oestrous cycle is 14～20 days, the oestrous heat period is 1～3days,the geetational period is 154～159days,preduct rate is 85.61%, repreductive and survival rate is 54. 24%。 The mountain Valley Tibetan goat is 15～23days,2～4days,136～157days,135. 53%,and 118.42%respectively.
出处
《西南民族学院学报（自然科学版）》
1994年第4期388-391,共4页
Journal of Southwest Nationalities College(Natural Science Edition)
基金
系国家自然科学资助
关键词
山羊
藏山羊
生长发育
繁殖性能
Tibetan goat,growth and development,repreductive performance
