The Effect of Different Antibiotics on Sperm Quality and Antimicrobial Activity in Cool-stored Stallion Semen

Semen extenders contain antibiotics to minimize bacterial growth. The efficacy of new-generation antibiotics at controlling bacteria growth without impairing sperm quality has not been reported. The aims of this study were to evaluate: 1) the effect of 4 different antibiotics or antibiotic combinations (potassium penicillin G + amikacin disulfate, ticarcillin – clavulanate, piperacillin – tazobactam, or meropenem) on sperm quality in cool-stored semen; and 2) the efficacy of these antibiotics on bacterial growth in extended semen non-spiked (commensal bacteria) or spiked with potentially pathogenic bacteria (Klebsiella pneumoniae or Pseudomonas aerug inosa).
Source: Journal of Equine Veterinary Science - Category: Veterinary Research Authors: Source Type: research