Selçuk University, Faculty of Veterinary Medicine, Department of Reproduction and Artificial Insemination, Konya, Turkey.
Selçuk University, Vocational School of Health Services, Medical Services and Techniques, Medical Laboratory Techniques, Konya, Turkey.
Trop Anim Health Prod. 2023 Apr 26;55(3):175. doi: 10.1007/s11250-023-03586-4.
This study was aimed at investigating the effects of vitamin A (VITA), vitamin E (VITE), and combined β-carotene plus vitamin E (βCAR+VITE) injections on some fertility parameters in ewes. Estrus synchronization was performed by treating the ewes with intravaginal FGA sponges impregnated with 30 mg of fluorogestone acetate. On the days of the insertion and withdrawal of the intravaginal sponges, groups VITA, VITE, and βCAR+VITE were administered with 500 000 IU of vitamin A, 50 mg of vitamin E, and a combination of β-carotene plus vitamin E, respectively. The ewes in the control group (C) were maintained for control purposes. Statistically significant differences were determined between groups VITA and βCAR+VITE, groups VITE and βCAR+VITE, and groups C and βCAR+VITE, as well as groups VITE and C, groups VITA and C for the multiple birth rates. While significant differences were determined between groups VITA and C, groups VITE and C, and groups βCAR+VITE and C for the lambing rates, it was ascertained that the ratio of newborn lambs to delivered ewes (litter size) significantly differed between groups VITA and βCAR+VITE, groups VITA and C, groups VITE and βCAR+VITE, groups VITE and C, and groups βCAR+VITE and C. The highest MDA level and lowest GSH level were determined on day 20 after mating in the control group. In conclusion, it is suggested that both multiple birth rates and litter size can be increased by the combined administration of β-carotene and vitamin E.
本研究旨在探讨维生素 A（VITA）、维生素 E（VITE）和β-胡萝卜素加维生素 E（βCAR+VITE）注射对母羊某些生育参数的影响。通过用含有 30 毫克氟孕酮的阴道内 FGA 海绵处理母羊来进行发情同步。在阴道内海绵插入和取出的日子里，VITA、VITE 和 βCAR+VITE 组分别给予 50 万国际单位的维生素 A、50 毫克的维生素 E 和β-胡萝卜素加维生素 E 的混合物。对照组（C）的母羊则作为对照组。VITA 和 βCAR+VITE 组、VITE 和 βCAR+VITE 组、C 和 βCAR+VITE 组之间以及 VITE 和 C 组、VITA 和 C 组之间的多胎率存在显著差异。VITA 和 C 组、VITE 和 C 组以及βCAR+VITE 和 C 组之间的产羔率存在显著差异，而 VITA 和 βCAR+VITE 组、VITA 和 C 组、VITE 和 βCAR+VITE 组、VITE 和 C 组之间新生羔羊与分娩母羊的比例（产仔数）存在显著差异。VITA 和βCAR+VITE 组、VITA 和 C 组、VITE 和βCAR+VITE 组、VITE 和 C 组以及βCAR+VITE 和 C 组的 MDA 水平最高，GSH 水平最低，均在交配后第 20 天确定。综上所述，联合使用β-胡萝卜素和维生素 E 可提高多胎率和产仔数。
