Effect of cow parity and synchronization method with PGF2α on conception rates of Bos indicus cows in Cameroon

dc.contributor.authorBayemi, Pougue Henri
dc.contributor.authorLeinyuy, Isabelle
dc.contributor.authorNsongka, M.V. (Munji Victorine)
dc.contributor.authorWebb, E.C. (Edward Cottington)
dc.contributor.authorNchadji, Justin Mbanya
dc.contributor.authorCavestany, Daniel
dc.contributor.authorPerera, B.M.A. Oswin
dc.contributor.emailedward.webb@up.ac.zaen_ZA
dc.date.accessioned2015-05-22T07:35:13Z
dc.date.available2015-05-22T07:35:13Z
dc.date.issued2015-01
dc.description.abstractThe objective of this work was to evaluate the effect of two synchronization methods with prostaglandins F2α (PGF2α) on heifers and multiparous cows. Fourty-three Bos indicus cows (white and Red Fulani) were divided into four groups in a two-by-two factorial structure, parity x method of synchronization. The synchronization methods consisted of a two-dose regime which involved injection of animals on day 0 with PGF2α (Lutalyse) at 5 ml per cow intramuscularly. On day 11, the injection was repeated at the same dosage. On day 14 (72 h after the second injection), a fixed-time artificial insemination (AI) was done. On day 15 (96 h after the second injection), a second insemination was done. The one-and-a-half-dose regime consisted of an injection similar to the first treatment mentioned above on day 0. Thereafter, cows were observed for heat, and anyone showing heat was inseminated. A second dose was given on day 11 to all animals not having shown any heat. A fixed-time AI was done on days 14 and 15. Blood samples were collected on the day 0 of insemination for each cow while day 11 and day 21 after insemination. Progesterone was analysed by means of standard ELISA progesterone kits to determine its profiles after insemination. Results show no evidence of the effect of treatments on conception rates (P>0.05). Similarly, heifers and multiparous cows had similar conception rates (P>0.05). Between 3 weeks and 3 months of pregnancy, there was a loss of embryos of 28 % in heifers and 20 % in multiparous cows, but the difference between the two groups was not significant (P>0.05). It recommended that farmers do not synchronize animals with poor body condition score (BCS). They should also monitor weight gains of heifers, remove them from the herd when they have been mixed with young growing bulls and put them in a breeding herd. The two-dose regime is better to be used in areas where the inseminator cannot easily be available.en_ZA
dc.description.embargo2016-01-31en_ZA
dc.description.librarianhb2015en_ZA
dc.description.urihttp://link.springer.com/journal/11250en_ZA
dc.identifier.citationBayemi, PH, Leinyuy, I, Nsongka, MV, Webb, EC et al 2015, 'Effect of cow parity and synchronization method with PGF2α on conception rates of Bos indicus cows in Cameroon', Tropical Animal Health and Production, vol. 47, no. 1, pp. 159-162.en_ZA
dc.identifier.issn0049-4747 (print)
dc.identifier.issn1573-7438 (online)
dc.identifier.other10.1007/s11250-014-0701-7
dc.identifier.urihttp://hdl.handle.net/2263/45233
dc.language.isoenen_ZA
dc.publisherSpringeren_ZA
dc.rights© Springer Science+Business Media Dordrecht 2014. The original publication is available at : http://link.springer.comjournal/11250en_ZA
dc.subjectCameroonen_ZA
dc.subjectCattleen_ZA
dc.subjectOestrusen_ZA
dc.subjectProgesteroneen_ZA
dc.subjectSynchronizationen_ZA
dc.titleEffect of cow parity and synchronization method with PGF2α on conception rates of Bos indicus cows in Cameroonen_ZA
dc.typePostprint Articleen_ZA

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