摘要
对30周龄初产的236只马岗鹅母鹅进行个体观察记录 ,结果 :第一个产蛋年(245d)累计产蛋9091个 ,平均每只母鹅产蛋38.52个 ,个体母鹅最高产蛋达78个 ,最少者7个 ;产蛋规律、产蛋率与气候环境有密切关系 ,10℃～25℃的气温条件适宜种鹅产蛋 ,平均气温在16℃～18℃时的产蛋率最高。就巢性强是马岗鹅繁殖力低的主要原因 ,个体之间的就巢性存在较大的差异 。
Two hundred and thirty-six female Magang geese aging 30 weeks were observed individually in terms of egg production.As a result,the eggs laid during the first egg laying year(245 days)added up to 9.091,averaging 38.52 eggs per goose,ranging from 78 to 7;both the rules and the rate of egg production are closely related to climate conditions,with an optimum of 10℃～25℃.The major cause for the low propagation lies in the nestle stickiness of the geese.On the other hand,the relatively large variation of nestle stickiness between individuals offers a prospect of improving egg output by selective breeding to lower the nestle stickiness.
出处
《中国家禽》
北大核心
2000年第2期12-13,共2页
China Poultry
