布尔山羊的繁殖特性观察

通过对布尔山羊繁殖行为习性的连续观察,发现布尔山羊的性成熟年龄比国内小型山羊品种晚,属于较早熟品种.不同性格的布尔山羊公羊的性成熟年龄、采精量和精液品质均有一定差异,其中性格稳健型公羊的繁殖表现较为理想.布尔山羊公羊对发情母羊的选择不仅依赖于嗅觉,还在一定程度上依赖于视觉,它们对异种母羊（如毛用或奶用山羊）有一定排斥现象.初产三羔的母羊5 a累积产羔数比初产单羔的母羊多7.45只,比初产双羔的母羊多4.55只.公、母羊的繁殖高峰期均出现在3岁左右,2～4岁母羊超数排卵处理效果较好.

Reproductive Performance of Boer Goats

The reproductive performance of Boer goats was observed systematically in this study.The age of sex maturity of Boer goats was later than some small goat breeds in the country,so Boer goat should be classified to earlier-maturity breed.There were some differences in the age of sex maturity,ejaculate volume and sperm quality between different disposition bucks.The reproductive performance of steady bucks was better than others.The mating preference of Boer bucks not only depended on scent,but also depended on visual image.Some of Boer bucks excluded outsiders(for example,dairy goats or wool goats).The amount of kids born by does which had had tridymus at firstborn for five years was 7.45 more than that born by does which had had one kid at firstborn and 4.55 more than that born by does which had had twin kids in firstborn.The reproductive peaks of bucks and does appeared in three years old.The treatment effect of super-ovulation of 2~4 years old does was better than others.