1. An economic appraisal of a preventive medicine program for a dairy herd health management;Barfoot;Can. Vet.,1971
2. Part III. Effects on reproduction efficiency and milk and butterfat production;Belling;Vet. Med.,1964
3. Analysis of factors affecting calving intervals of dairy cows;Bozworth;J. Dairy Sci.,1972
4. Changes in reproductive performance in dairy herds using the herd reproductive status system;Britt;J. Dairy Sci.,1970
5. The economic impact of a fertility control and herd management program on a dairy farm;Herschler;J. Amer. Vet. Med. Ass.,1964