Effect of Dam Body Conformations on Birth Traits of Calves in Chinese Holsteins

The objective of this study was to explore the effect dam body conformations on birth traits including stillbirth, dystocia, gestation length and weight Chinese Holstein calves provide a reference for improving cow reproductive performance. We collected phenotype data 20 conformation cows analyzed impact trait linear scores calf weight. feet angle, set rear legs, fore udder attachment height dairy significantly affected risk stillbirth. dystocia decreases with increase in stature pin width. bone quality had significant positive correlation length. There between at birth. from high higher than that low composite score. These results suggest traits, especially selection mammary system shape total score, will be beneficial performance cows.