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首页> 外文期刊>Nigerian Journal of Animal Production >Reproductive performance and superovulatory response of endangered Cameroonian Namsbi breed (Bos taurusz)
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Reproductive performance and superovulatory response of endangered Cameroonian Namsbi breed (Bos taurusz)

机译：濒临灭绝的喀麦隆南斯比（Bos taurusz）繁殖性能和超排卵反应

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摘要

This study was undertaken to determine me reproductive performance of the endangered Bos-taurus Xamshi bread of Cameroon. Ovarian response to superovulatory treatment was also evaluated The following observations were recorded. The average calf mortality rate was 25.71% while the average birth weight was 12.22+-0.28kg, the percenrage of animals in oestrus during the wet and the dry season was respectively 60% and 33.4% the oestrus cycle length and oestrus duration were respectively 20.8+-20d and 7.00+-0.80h corresponding dry season figures for those parameters were 19.00+-0.94d and 6.0+-0.7h respectively, in the dry season the mamfeslatian of oestrus was 80% during the day and 20% at night in the wet season it was 55.55% and 44.5%, respectively. Postpartum oestrus was 18 months. The ovarian response to superovulatory treatment was about 6.4+-2.5 ovulations per cow. Results indicate that the scarcity of Bos taurus Namshi breed in Cameroon could be attributed to high calf mortality rate, low calvingrate and long postpartum periods. Embryo transfer could be a way to rapidly multiply this breed.
机译：进行这项研究是为了确定喀麦隆濒临灭绝的Bos-taurus Xamshi面包的生殖性能。还评估了卵巢对超排卵治疗的反应。记录以下观察结果。小牛平均死亡率为25.71％，平均出生体重为12.22 + -0.28kg，在潮湿和干燥季节发情期动物的发情率分别为60％和33.4％，发情周期长和发情持续时间分别为20.8这些参数的+ -20d和7.00 + -0.80h对应的旱季数字分别为19.00 + -0.94d和6.0 + -0.7h，在旱季中，发情的白天，夜间发情率为80％，夜间为20％。雨季分别为55.55％和44.5％。产后发情为18个月。卵巢对超排卵治疗的反应为每头母牛约6.4 + -2.5排卵。结果表明，喀麦隆Bos taurus Namshi品种的稀缺可归因于小牛死亡率高，产犊率低和产后期长。胚胎移植可能是迅速繁殖该品种的一种方式。

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