Comparatives of two bio-stimulation protocols in relation to lifetime reproductive performance in South African Mukota sows

6^th Global Veterinary Summit

November 14-16, 2016 Atlanta, USA

Dennis Onuoha Umesiobi and M C Achilonu

Farm Dysell�s Rust, South Africa
Central University of Technology, South Africa

Posters & Accepted Abstracts: J Vet Sci Technol

Abstract :

30 sows were assigned per group to each of two bio-stimulation protocols, twice daily (08:30 to 09:00 and 16:00 to 16:30) per 30 minutes duration in a four-week observation per parity over three parities. The bio-stimulation protocols involved fenceline boar exposure (FBE), in which sows were exposed to fence-line boars during estrus detection and physical boar exposure (PBE), in which sows received physical contact with the boar during estrus detection. Estrus was synchronized in sows by a single subcutaneous injection of P.G. 600�® (400 IU PMSG with 200 IU HCG/5 mL dose/animal). Sows on each treatment were artificially inseminated using semen from the same boars and collections. All experimental females received inseminations of 3.5��109 sperm/80 mL at 24 hours after onset of estrus. Sows that received physical boar exposure in parity 3 produced a higher estrus expressions (98�±23.1 vs. 77.5�±25.5%), NRR (92.1�±6.3 vs. 74.4�±3.5%), farrowing rate (88.2�±16.5 vs. 63.8�±7.1%,), litter size (12�±0.02 vs. 8�±0.05) and live piglets (10�±0.05 vs. 6.3�±0.02), respectively compared with those from sows that received fence-line boar exposure in parity 3. Direct exposure of boars to sows prior to estrus induction and artificial insemination progressively enhances the lifetime reproductive performance in South African Mukota sows.

Biography :

Email: doumesiobi@gmail.com