白头与黑头滩羔羊在相同饲喂水平下增重效果的比较

Abstract

滩羊是我国特有的轻裘皮绵羊品种，体躯绝大多数为白色，头部、眼周围和两颊多为黑色、褐色、黄色斑块和纯白。本试验目的是在相同饲喂水平下，比较黑头和白头滩羔羊增重效果及经济效益，为滩羊的选育提供理论依据。结果表明：黑头滩羔羊和白头滩羔羊总增重和日增重差异都不显著(P > 0.05)，但白头滩羔羊的总增重比黑头滩羔羊高0.16 kg，白头滩羔羊的日增重比黑头滩羔羊高3.2 g，白头滩羔羊的经济效益高于黑头滩羔羊。结果证明：滩羊头部色班块对滩羊生产性能影响不明显。 Tan Sheep is a breed of light fur; the color of body is white, while head, periocular areas and cheeks are black, brown, yellow and white. The purpose of this experiment is to compare the weighting effect and economic benefit of black and white head Tan Sheep under the same feed level, providing theoretical basis for the breeding of Tan Sheep. The results show that the total weight gain and the daily weight gain are not significant of black and white head Tan Sheep (P > 0.05), but the total weight gain of white head Tan Sheep is 0.16 kg more than black head Tan sheep and the daily weight gain of white head Tan sheep is 3.2 g more than black head Tan sheep. The economic benefit of white head Tan Sheep is slightly higher than that of black head Tan Sheep. The results prove that the head color does not obviously affect the productivity of Tan Sheep.