Tajima, A Estimation of the relative fertilizing ability of frozen chicken spermatozoa using a heterospermic competition method. [electronic resource] - Journal of reproduction and fertility Jan 1989 - 1-5 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0022-4251 Standard No.: 10.1530/jrf.0.0850001 doi Subjects--Topical Terms: AnimalsChickensFertilityFreezingInsemination, Artificial--veterinaryMaleSemen PreservationSpermatozoa--physiology