杜泊羊与巴彦淖尔多胎羊杂交F1代生产性能的研究

doi:10.12160/j.issn.1672-5190.2019.07.006

摘要/Abstract

摘要： 旨在研究杜泊羊与巴彦淖尔多胎羊杂交F₁代的生产性能,为新疆库尔勒地区引进巴彦淖尔多胎羊进行肥羔生产和肉羊杂交利用提供依据。试验比较了2017年与2018年同一饲养管理水平下杜泊羊（父本）与巴彦淖尔多胎羊（母本）杂交后代（杜×巴F₁代）和新疆库尔勒地区本地绵羊自然交配所生产的羔羊（对照组羔羊）之间在生长性能、屠宰性能等方面的差异,同时对巴彦淖尔多胎母羊和当地母羊的繁殖性能进行了对比分析。结果表明,2017年与2018年,杜×巴F₁代羔羊的3月龄及6月龄体重极显著（P<0.01）高于对照组羔羊,日增重显著（P<0.05）高于对照组羔羊;除2018年6月龄杜×巴F₁代羔羊体长、胸宽极显著（P<0.01）高于对照组羔羊外,2017年与2018年6月龄屠宰时杜×巴F₁代羔羊的体高、胸深、胸围、管围等体尺指标均显著（P<0.05）高于对照组羔羊;2017年和2018年,杜×巴F₁代羔羊的胴体重分别比对照组羔羊提高了21.07%和22.90%,差异均极显著（P<0.01）;2017年与2018年,杜×巴F₁代羔羊的净肉重、净肉率极显著（P<0.01）大于对照组羔羊;巴彦淖尔多胎母羊的难产率极显著（P<0.01）高于本地绵羊,羔羊成活率极显著（P<0.01）低于本地绵羊,但其受胎率显著（P<0.05）高于本地绵羊,产羔率、双羔率分别比本地绵羊提高了24.72%和3.41倍,差异均极显著（P<0.01）。综合以上结果可以得出,杜×巴F₁代羔羊的生长性能、屠宰性能均优于对照组羔羊,继承了父本杜泊羊优良的生长发育性能;母本巴彦淖尔多胎羊保持了对环境的良好适应性和多胎性。在该地区引入巴彦淖尔多胎母羊,并与杜泊公羊进行杂交,充分利用杜×巴F₁代羔羊的杂种优势,将明显提高该地区肉羊养殖的经济效益。

关键词: 杜泊羊, 巴彦淖尔多胎羊, 杂交F₁代, 产肉性能, 杂种优势

Abstract: The aim of the present study were to assess the production performance of the F1 hybrid progeny of Dorper sheep and Bayannur prolific sheep, and to provide a basis for introduction of Bayannur prolific sheep in Korla region of Xinjiang for fattening lambs production as well as cross-breeding and utilization of mutton sheep. The differences in growth performance and slaughter performance between the F1 hybrid lambs of Dorper sheep （male parent） and Bayannur prolific sheep （female parent） and the lambs （control group） produced by local female and male sheep by natural mating were statistically analyzed. Furthermore, the reproductive performance of Bayannur prolific ewes and local ewes was compared. The results showed that the 3-month-old and 6-month-old weight of the F1 crossbred lambs in 2017 and 2018 was extremely significantly higher （P<0.01） than that of the control group, and the daily weight gain was significantly higher （P<0.05） than that of the control group; the F1 crossbred lambs aged 6 months had extremely significantly higher （P<0.01） body length and chest width compared to their counterparts in control group in 2018; the F1 crossbred lambs aged 6 months had significantly higher （P<0.05） body height, chest depth, chest circumference and tube circumference compared to the control group in 2017 and 2018; the carcass weight of the F1 crossbred lambs was extremely significantly （P<0.01） elevated by 21.07% and 22.90% than that of the control group in 2017 and 2018, respectively; the net meat weight and net meat rate of the F1 crossbred lambs was extremely significantly higher （P<0.01） than that of the control group in 2017 and 2018; the conception rate and dystocia rate of Bayannur prolific ewes was significantly higher （P<0.05） and extremely significantly higher （P<0.01） than that of the local ewes, respectively, but the survival rate of their lambs was extremely significantly reduced （P<0.01）; the lambing rate and twin-lamb rate of the Bayannur prolific ewes was 24.72% and 3.41 times higher than that of the local ewes, respectively, and the difference was both extremely significant （P<0.01）. The combined data suggested that the F1 crossbred lambs of Dorper sheep and Bayannur prolific sheep had better growth performance and slaughter performance compared to the local lambs, indicating that they inherited the superior growth and development performance of their male parent of Dorper sheep; the female parent of Bayannur prolific ewes maintained their good adaptability to the environment and prolificacy. The hybridization of the introduced Bayannur prolific sheep with the Dorper sheep fully exerted the heterosis of the F1 crossbred lambs, which would obviouly improve the economic benefits of mutton sheep farming in this region.

Key words: Dorper sheep Bayannur prolific sheep hybrid F1 generation meat production performance heterosis

中图分类号:

S826.922

阿力木江·斯拉木. 杜泊羊与巴彦淖尔多胎羊杂交F₁代生产性能的研究[J]. 畜牧与饲料科学, 2019, 40(7): 22-26.

Alimujiang·Silamu. Production Performance of F₁ Hybrid Progeny of Dorper Sheep and Bayannur Prolific Sheep[J]. Animal Husbandry and Feed Science, 2019, 40(7): 22-26.

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杜泊羊与巴彦淖尔多胎羊杂交F₁代生产性能的研究

Production Performance of F₁ Hybrid Progeny of Dorper Sheep and Bayannur Prolific Sheep

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