Comparison of three nutraceuticals administered in targeted nutrition on the reproductive response of Pelibuey ewes synchronized with exogenous hormones in an ultra-short protocol (Atena Editora)

Abstract

The objective of this work was to evaluate the reproductive response in Pelibuey ewes comparing the oral administration of three nutraceuticals for five days; T1; 10 g of aminosilicate with minerals, T2; 6 g of a gluconeogenic (Lipofeed), T3; 10 g of organic minerals Se and Cr in inert yeast (Biotecap) and T4; 10 ml of drinking water. All ewes were synchronized using a 5-day protocol with reused CIDRS plus prostaglandin F2α and eCG. Statistical analysis was performed using the GLM procedure of SAS and nonparametric variables using a logistic regression test. The percentage of ewes showing estrus was not different between treatments with percentages between 80 and 90. Hours to estrus was lower (P<0.05) in T1, T2 and T3 with less dispersion with respect to the mean, compared to T4 which had a higher mean. The percentage of gestation was not different between treatments with values of 70 and 80. Prolificacy was higher in T2 and T3 with values of 1.75 and 1.87 (P<0.05) with respect to T1 and T4 with values of 1.4. Blood glucose concentration was not different in T1, T2 and T3 in which less variation was also observed with respect to the mean (P<0.05) with respect to T4. It is concluded that the administration of nutraceuticals in targeted nutrition can improve some reproductive variables in ewes in anestrus, synchronized with an ultra-short protocol with reused CID¨R.