alexa Comparatives Of Two Bio-stimulation Protocols In Relation To Lifetime Reproductive Performance In South African Mukota Sows | 60972
ISSN: 2157-7579

Journal of Veterinary Science & Technology
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6th Global Veterinary Summit

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
DOI: 10.4172/2157-7579.C1.022
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.
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