ATYPICAL CHANGES OF DEOXYRIBONUCLEOPROTEIN DURING SPERMIOGENESIS ASSOCIATED WITH A CASE OF INFERTILITY IN THE BULL

Abstract

Summary. The duration of fertilizing capacity of mouse spermatozoa in the female tract was investigated by insemination of mice following the injection of pmsg and hcg or post partum. It was found that the fertilizing life of mouse spermatozoa in the female tract is about 12 hr rather than 6 hr as previously reported.