Bacteriospermia and porcine reproduction: effects on sperm quality and fertility potential of boar spermatozoa
Boar semen is not collected under sterile conditions,so boar ejaculates are commonly contaminated with a broad range of microorganisms, which may affect sperm quality and lead to a low reproductive performance and severe economic losses in the swine industry. For that reason, the present thesis has...
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| Format: | doctoral thesis |
| Status: | Published version |
| Publication Date: | 2016 |
| Country: | España |
| Institution: | CBUC, CESCA |
| Repository: | TDR. Tesis Doctorales en Red |
| OAI Identifier: | oai:www.tdx.cat:10803/395943 |
| Online Access: | http://hdl.handle.net/10803/395943 |
| Access Level: | Open access |
| Keyword: | Pseudomonas aeruginosa Clostridium perfringens Sperm quality Qualitat espermàtica Calidad espermática Boar spermatozoa Espermatozoides de porcí Espermatozoides de porcino Pig-male reproductor Mascle reproductor porcí Macho reproductor porcino Sus domesticus Sperm capacitation Capacitació espermàtica Capacitación espermática 576 |
| Summary: | Boar semen is not collected under sterile conditions,so boar ejaculates are commonly contaminated with a broad range of microorganisms, which may affect sperm quality and lead to a low reproductive performance and severe economic losses in the swine industry. For that reason, the present thesis has focused on the effects that different concentrations of two different bacteria cause upon sperm quality and fertility potential of boar spermatozoa. Concretely, the present study has established that concentrations over 10e6-10e7 CFU/mL of Pseudomonas aeruginosa and Clostridium perfringens cause detrimental effects on sperm motility, sperm viability and sperm acrosome integrity. Moreover, concentrations of P. aeruginosa higher than 10e4-10e6 CFU/mL also affect the ability of boar sperm to become fully capacitated, an essential requirement for a proper fertilisation. In conclusion, this thesis has established a concentration threshold from which sperm quality and fertility potential are affected. |
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