《中国畜牧兽医》---唯一指定的官方网站 ›› 2016, Vol. 43 ›› Issue (7): 1766-1773.doi: 10.16431/j.cnki.1671-7236.2016.07.017

• 动物营养与饲料科学 • 上一篇    下一篇

湖寒杂交F1代与小尾寒羊生长性能比较研究

许开云, 董伟, 李晓燕, 汪裕龙   

  1. 武威市畜牧兽医科学研究院, 武威 733000
  • 收稿日期:2015-12-17 出版日期:2016-07-20 发布日期:2016-07-22
  • 通讯作者: 汪裕龙 E-mail:880501dongwei@163.com
  • 作者简介:许开云(1963-),男,甘肃民勤人,高级兽医师,从事畜牧兽医技术研究,E-mail:xmj5651@126.com
  • 基金资助:

    农业科技推广项目资金

Comparison on the Growth Performance between F1 Hybrid of Small-tail Han Sheep × Hu Sheep and Small-tail Han Sheep

XU Kai-yun, DONG Wei, LI Xiao-yan, WANG Yu-long   

  1. Animal Husbandry and Veterinary Science Institute, Wuwei 733000, China
  • Received:2015-12-17 Online:2016-07-20 Published:2016-07-22

摘要:

试验旨在研究母本小尾寒羊与父本湖羊的杂交F1代在生长性能方面具有的杂交效果。试验以小尾寒羊为对照,选择新生(0日龄)小尾寒羔羊和湖寒杂交F1代羔羊,在相同舍饲饲养条件下,进行羔羊补饲(6~45日龄)和育肥(46~150日龄)试验研究。结果显示,杂交F1代羊初生重、断奶重、3月龄体重、5月龄体重分别比小尾寒羊提高20.00%、25.17%、19.92%及20.42%,差异极显著(P < 0.01);补饲期和育肥期的平均日增重分别比小尾寒羊提高26.91%(P < 0.01)和17.63%(P < 0.01)。湖寒杂交F1代羊育肥到5月龄时,其体高、胸围、管围等生长指标极显著高于小尾寒羊(P < 0.01),而体斜长不存在显著性差异(P > 0.05)。杂交F1代羔羊腹泻率比小尾寒羊降低8.33%,成活率提高5.55%。试验期末,5月龄杂交F1代羊经济效益比小尾寒羊提高69.34%。研究表明,利用湖羊改良本地肉羊品种小尾寒羊,其羔羊成活率和宰前活重明显提高,杂种优势明显。

关键词: 小尾寒羊; 湖羊; 杂交; 生长性能

Abstract:

This experiment was carried out to evaluate heterosis of the F1 hybrid of female Small-tail Han sheep and male Hu sheep in growth performance.The newborn lambs from Small-tail Han sheep and F1 hybrid of Small-tail Han sheep × Hu sheep were used in supplementary feeding (6 to 45 days old ) and fattening (46 to 150 days old) under the same conditions.The results showed that F1 hybrid were extremely significantly higher than Small-tail Han sheep in birth weight,weaning weight,three months weight and five months weight (P < 0.01),which were increased by 20.00%,25.17%,19.92% and 20.42%,respectively.The average daily gain of F1 were also extremely significantly higher than that of Small-tail Han sheep in both supplementary feeding period and fattening period (P < 0.01),the increase were 26.91% and 17.63%,respectively.At 5-month old,body height,chest circumference and cannon circumference of F1 hybrid were extremely significantly higher than that of Small-tail Han sheep (P < 0.01),but the body length had no significant difference (P > 0.05).The diarrhea rate of F1 hybrid was 8.33% lower than that of Small-tail Han sheep,and the survival rate was 5.55% higher.In addition,the economic benefit of F1 hybrid was 69.34% more than that of Small-tail Han sheep at the end of the experiment.The results suggested that the heterosis was obvious,meanwhile the survival rate and pre-slaughter live weight of F1 progenies could be significantly improved.

Key words: Small-tail Han sheep; Hu sheep; hybrid; growth performance

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