1. Use of zona-free hamster ova to assess sperm fertilizing ability of bull and stallion;Brackett;Gamete Res,1982
2. Heterologous fertilization of intact sheep and cattle oocytes by goat spermatozoa;Cox,1992
3. Assessment of specific effects of heparin on fertilizing ability of goat spermatozoa;Cox,1993
4. Use of a multiple sperm penetration assay in ovines;Cox,1992
5. Functional assessment of a multiple sperm penetration assay in bovine zona pellucida;Cox,1992