Distribution of spermatozoa in the oviduct and fertility in domestic birds. III. Intra-uterine insemination of semen from low-fecundity cocks
Ogasawara, F.X.; Lorenz, F.W.; Borr, L.W.nda
J Re Prod Fertil 11(1): 33-41
Semen from low-fecundity cocks, characterized by relatively large numbers of spermatozoa with abnormal morphology, poor motility and sluggish metabolism, fertilized very few eggs when inseminated mid-vaginally, but produced moderate fertility when deposited in the uterus. The percentage of pre-ovipositally dead embryos was also increased in eggs fertilized by spermatozoa from low-fecundity cocks when these were deposited directly in the uterus. Few spermatozoa from low-fecundity cocks entered an/or survived in oviducal glands, especially in those of the uterovaginal junction.