作者: G. Banos , M.P. Coffey
DOI: 10.1017/S1751731109991182
关键词: Animal science 、 Dairy cattle 、 Lactation 、 Fertility 、 Biology 、 Heritability 、 Genetic correlation 、 Internal medicine 、 Endocrinology 、 Energy balance 、 Genetic model 、 Ice calving
摘要: … throughout lactation with a cow’s fertility. Nine direct and indirect body energy traits were defined at different stages of lactation… score (BCS) calculated between lactation days 4 and 311. …