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Theriogenology. 2007 Oct 1;68(6):848-52. Epub 2007 Aug 15.

Comparison of ticarcillin and piperacillin in Kenney's semen extender.

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  • 1Department of Clinical Studies, Section of Reproduction, 382 West Street Road, New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Kennett Square, PA 19348, USA.

Abstract

Ticarcillin and piperacillin were compared to determine their effect on sperm motility and bacterial growth of equine semen samples diluted in Kenney's glucose skim milk semen extender. Each ejaculate (n=11) was divided into three portions and glucose skim milk semen extender solution was added. The control semen extender solution contained extended semen and no antibiotic, whereas ticarcillin and piperacillin solutions contained extended semen plus 1.0mg/mL of ticarcillin or piperacillin, respectively. An aliquot was removed (1h after collection) to evaluate sperm motility and microbial concentration. All three solutions were stored at 4 degrees C and aliquots were obtained at 24 and 48 h to determine sperm motility and microbial concentration. Mean percentages of motile and progressively motile sperm did not differ significantly among control and antibiotic-containing solutions after storage. Control-extended semen samples from ejaculates of stallions (n=11) were contaminated with aerobic gram-positive and gram-negative bacteria. In solutions that contained either antibiotic, growth of these microbes was inhibited after 1, 24, and 48 h at 4 degrees C. Semen samples from stallions (n=5) were extended with Kenney's glucose skim milk extender containing no antibiotic, ticarcillin or piperacillin and then inoculated with approximately 5 x 10(2)CFU/mL Klebsiella pneumoniae or Pseudomonas aeruginosa; there was no significant difference between antibiotics in the inhibition of microbial growth. In conclusion, piperacillin was an appropriate alternative to ticarcillin in extenders for equine semen.

PMID:
17706757
[PubMed - indexed for MEDLINE]
PMCID:
PMC2128061
Free PMC Article
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