Effects of Vitamin E and Selenium on Fertility and Lamb Performance of Yankasa Sheep

S. I. Musa, I. Bitto, J. Ayoade, Olugbenga Emmanuel Oyedipe
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引用次数: 9

Abstract

Effects of vitamin E and Selenium administration on fertility and lamb performance of Yankasa sheep were evaluated. Thirty post pubertal ewes (1-1 1/2 years of age) and nine rams (2-2 1/2 years of age) were used for the study. The ewes were randomly assigned into 3 groups (n = 10). Animals in group 1 served as control and were administered 1 ml normal saline. Animals in group 2 were administered 90 mg Tocopherol acetate (Vitamin E), while group 3 received injection containing a combination of 100 mg tocopherol acetate and 1.97 mg sodium selenite. Two doses of the injections were administered 14 days apart (subcutaneously). Estrus was synchronized in the ewes using controlled internal drug release device (CIDR). Rams were used for estrus detection and mating starting 24 hours following withdrawal of CIDR. Ewes were allowed to carry the pregnancy to term. The results indicate higher (p < 0.05) estrus response (80.00, 100.00, 100.00), pregnancy rate (75.00, 100.00, 100.00) and lambing rate (66.6, 100.00, 100.00) in ewes following administration of vitamin E and a combination of vitamin E and selenium. Average daily weight gain of lambs was also significantly enhanced (p < 0.05) by treatment. It can be concluded that administration of Vitamin E alone and in combination with selenium resulted in improved reproductive performance on Yankasa sheep.
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维生素E和硒对羊生育能力和羔羊生产性能的影响
研究了维生素E和硒对洋卡萨羊生育能力和羔羊生产性能的影响。试验选用30只青春期后母羊(1-1 /2岁)和9只公羊(2-2 /2岁)。母羊随机分为3组(n = 10)。1组为对照,灌胃生理盐水1 ml。2组灌胃90 mg醋酸生育酚(维生素E), 3组灌胃100 mg醋酸生育酚和1.97 mg亚硒酸钠。两次注射间隔14天(皮下注射)。采用药物内控释装置(CIDR)同步母羊发情。公羊在停用CIDR后24小时开始进行发情检测和交配。母羊被允许怀孕到足月。结果表明:饲粮中添加维生素E和硒后,母羊的发情反应(80.00、100.00、100.00)、受孕率(75.00、100.00、100.00)和产羔率(66.6、100.00、100.00)显著提高(p < 0.05)。各组羔羊平均日增重也显著提高(p < 0.05)。由此可见,维生素E单独或与硒联合施用可提高羊的繁殖性能。
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