1. Prediction of fertility in rams: Factors affecting fertility and collection, testing and evaluation of semen;Hulet;VM/SAC,1977
2. Production of spermatozoa, storage of semen and artificial insemination in the sheep;Colas,1977
3. Caprine Reproduction;Smith,1980
4. Sperm Production Rates;Amann,1970
5. Bovine testicular measurements as indicators of reproductive performance and their relationship to productive traits in cattle. A review;Coulter;Theriogenology,1979