The effect of flushing and stimulus of estrogenized does on reproductive performance of anovulatory-range goats |
| |
Authors: | De Santiago-Miramontes María Angeles Luna-Orozco Juan Ramon Meza-Herrera Cesar A. Rivas-Muñoz Raymundo Carrillo Evaristo Véliz-Deras Francisco Gerardo Mellado Miguel |
| |
Affiliation: | 1.Autonomous Agrarian University Antonio Narro, Periférico Raúl López Sánchez y Carretera a Santa Fe, C.P 27054, Torreón, Mexico ;2.Centro de Bachillerato Tecnológico Agropecuario, N° 1, Torreón, Mexico ;3.Universidad Autónoma Chapingo, Unidad Regional Universitaria de Zonas áridas, Bermejillo, Mexico ;4.Instituto Tecnológico de Torreón-DGEST, Torreón, Mexico ;5.Department of Animal Nutrition, Autonomous Agrarian University Antonio Narro, Saltillo, Mexico ; |
| |
Abstract: | This study was conducted to determine whether flushing or the stimulus of estrogenized goats is necessary to achieve a high reproductive response in anestrous goats on rangeland. Does were feed-supplemented on rangeland (flushed, n = 20). Other group was exposed to estrogenized does during the mating period (stimulated, n = 20). A third group was both supplemented and stimulated (stimulated–flushed, n = 20) and other group grazed on rangeland only (control, n = 18). More goats in the stimulated and stimulated–flushed groups showed estrus during the first 5 days of joining (45% and 60%, respectively) than the control and flushed groups (11% and 5%, respectively; P < 0.05). Flushing did not improve prolificacy and reduced (P < 0.05) kidding rates (40% and 35% for the flushed and stimulated–flushed groups, respectively) compared to 67% and 55% for the control and stimulated groups, respectively. This experiment demonstrates potential shortcomings of use of flushing in range goats with inadequate nutrition during gestation. |
| |
Keywords: | |
本文献已被 PubMed SpringerLink 等数据库收录! |
|