1. Effect of pregnancy on the live weight of dairy cows;Bartlett;J. Agr. Sci.,1926
2. Genetic and environmental factors affecting weight in beef cows;Fitzhugh;J. Anim. Sci.,1967
3. Energy metabolism results with lactating cows;Flatt;J. Dairy Sci.,1966
4. Energy utilization by high producing dairy cows. I. Experimental design, ration composition, digestibility data, and animal performance during energy balance trials;Flatt,1967
5. Energy utilization by high producing dairy cows. II. Summary of energy balance experiments with lactating Holstein cows;Flatt,1967