Abstract

GONZALEZ-GOMEZ, Adán et al. Ovulatory and embryonic response to recombinant bovine somatotropin in goats superovulated with FSHp. Ecosistemas y recur. agropecuarios [online]. 2019, vol.6, n.16, pp.115-120.  Epub Oct 01, 2019. ISSN 2007-901X.  https://doi.org/10.19136/era.a6n16.1619.

The objective of this study was to evaluate the effect of recombinant bovine somatotropin (rBST) on ovarian activity and quantity and quality of transferable embryos in goats during seasonal anoestrus. We used 30 multiparous goats synchronized with goats synchronized with CIDR short protocol and superovulated with FSHp, assigned to three treatments (n = 10): T1 = control, without rBST, T2 = 100 mg rBST y T3 = 200 mg rBST. Quantitative variables were analyzed using the Kruskal-Wallis test, and the percentage of estrus and embryos recovered by the Chi-square test. A greater number of CL were registered in goats assigned to T3, followed by T2 (p = 0.002). The number of recovered embryos and blastocysts was higher in T3 (p = 0.001). The morula number was higher in T1 (p = 0.001). The application of rBST at the onset of estrus increases ovarian activity and the number of transferable embryos in goats.

Keywords : Goats; embryo; short protocol; embryo collection; superovulation.