EFFECTS OF BODY-WEIGHT AND ITS COMPONENTS ON LAMBING PERFORMANCE IN SOME COMMERCIAL FLOCKS IN BRITAIN

被引:12
作者
GEISLER, PA
FENLON, JS
机构
[1] Grassland Research Institute, Maidenhead, Berkshire SL6 5LR, Hurley
来源
ANIMAL PRODUCTION | 1979年 / 28卷 / APR期
关键词
D O I
10.1017/S0003356100042550
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
An analysis of the records of ewe weight and condition at mating together with subsequent lambing performance for several commercial flocks in the UK revealed no significant relationship between lambing performance and size, measured by weight transformed to a standard condition. The relationship between mating weight and body condition score at mating was linear though there was considerable variation in weight at a fixed body condition, suggesting a substantial spread in skeletal size. Increases in ovulation rate were not discernible from lambing figures over the range of body conditions observed in these flocks. © 1979, British Society of Animal Science. All rights reserved.
引用
收藏
页码:245 / 255
页数:11
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