Jud Heinrichs, Coleen M. Jones
Age at first calving impacts the total costs of raising heifers. This article examines DHI data on age at first calving in Pennsylvania Holsteins.
Jud Heinrichs, G. I. Zanton, G. J. Lascano
Replacing forage dry matter with concentrates offers potential to improve the efficiency of heifer feeding, while maintaining similar rates of gain and reducing excretion of manure and nutrients.