Corn oil in Pelibuey ewes embryo transfer

The effect of including corn oil (CO) in the diet of Pelibuey ewes in an embryo transfer protocol was evaluated. Twenty-four (24) donor ewes were randomly assigned to each of two groups (G), G1: twelve ewes fed a base diet (BD) with CO, and G2: twelve ewes fed BD without CO. Embryos were obtained 6.5 d after estrus and transferred to recipient ewes, forming four treatments: T1: recipient ewes fed a base diet with CO (BD+CO), transferred with embryos from a G1 donor (n=23), T2: recipient ewes fed BD without CO (BD-CO), transferred with embryos from a G1 donor (n=18), T3: recipient ewes fed BD+CO, transferred with embryos from a G2 donor (n=9), and T4: recipient ewes fed BD-CO, transferred with embryos from a G2 donor (n=11). The inclusion of CO in the diet increased (P<0.05) the ovulatory rate (10.5 ± 2.07 vs. 6.3 ± 2.07 corpora lutea), the number of transferable embryos (5.5 ± 1.4 vs 2.8 ± 1.4), quality 1 embryos (4.41 ± 1.1 vs 2.08 ± 1.1), and the number of total structures (5.9 ± 1.5 vs 3.1 ± 2.7) per donor ewe, and no differences (P>0.05) were found in the percentage of gestation (43.4, 55.5, 55.5, and 36.3 %) in the recipient ewes for any of the treatments. Including CO in the diet of Pelibuey ewes increases the superovulatory response in an embryo transfer protocol.

Bibliographic Details

Main Authors:	Márquez Hernández, Christofer Israel, Pro Martínez, Arturo, Torres Hernández, Glafiro, Rangel Santos, Raymundo, Gallegos Sánchez, Jaime
Format:	Digital revista
Language:	spa eng
Published:	Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias 2024
Online Access:	https://cienciaspecuarias.inifap.gob.mx/index.php/Pecuarias/article/view/6456
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