Impact of the relative emphasis on growth and litter size in a maternal index for selecting sheep
2004
Tosh, J.J. | Wilton, J.W.
Selection responses in sheep were predicted for a maternal index with different emphases on litter size and lamb growth to assess the need for correct economic values. Ratios of economic values for litter size relative to growth from 2 to 200 were tested. Genetic change per generation in market weight of lambs (1.75 to 0.03 kg) was sensitive, but genetic change per generation in number of lambs born (0.11 to 0.17) was practically independent of the economic values applied in the index.
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书目信息
其它主题
Food animals; Animal physiology and biochemistry; Genotype; Animal growth; Maternal effect; Animal breeding and genetics
语言
英语
注释
Summary in french.
2019-12-05
类型
Journal Article; Text
2024-02-28
MODS