The Percentage of Normal Sperm Declines in Consecutively Collected Ejaculates of Ram Semen.

ABSTRACT: Sperm morphology is an important marker of fertility in livestock. Since poor sperm morphology can disqualify a sire from being sold or used for breeding, it is crucial to understand the factors that influence changes in sperm morphology over time. It is often hypothesised that little variation exists in sperm morphology from ejaculate to ejaculate so long as factors such as nutrition, season, health, and thermal status remain the same. This study aimed to test this hypothesis by investigating the morphology of sperm collected from rams (Ovine aries) (n = 3) twice daily, three times per week, over an 8-week period. Sperm morphology was evaluated using an eight-category classification system. Results revealed that each ram exhibited high levels of variability, with only 10.4% of ejaculates

SUBMITTER: Seymour KR 

PROVIDER: S-EPMC11874250 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature