...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Indian Journal of Small Ruminants >INFLUENCE OF ENVIRONMENTAL FACTORS ON PRODUCTION TRAITS AND HERITABILITYESTIMATES OF MAGRA SHEEP IN ARID REGION
【24h】

INFLUENCE OF ENVIRONMENTAL FACTORS ON PRODUCTION TRAITS AND HERITABILITYESTIMATES OF MAGRA SHEEP IN ARID REGION

机译：环境因素对干旱地区生产性状和遗传性的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The aim of the present study was to examine the effect of non-genetic factors on growth and wool traits of 1482 Magra sheep spread over a period of five years (2008-12) maintained at the Arid Region Campus, ICAR-Central Sheep and Wool Research Institute, Bikaner. The least squares means for body weight at birth, 3,6,9 and 12 months of age were 3.18±0.02,16.12±0.14, 23.72±0.20,28.37±0.21 and 31.88±0.25 kg, respectively. The average daily gain in body weights during 0-3, 3-6 and 6-12 months of ages were 143.45±1.43, 84.23±1.35 and 40.22±1.13 g, respectively. For greasy fleece weight at first, second and third clips, least squares means were 567.18±5.16, 628.08±4.97 and 640.01+5.45 g, respectively. Least squares analysis of variance revealedsignificant (P<0.01) effect of year of birth and sex on all the traits. The fixed effect of parity had significant (P<0.01) effect only on birth weight. Dam's weight at lambing was a significant (P<0.01) source of variation for all the body weight traits, except average daily gains during 3-6 and 6-12 months of age. Greasy fleece weights at first, second and third clips were affected significantly (P<0.01) by lamb's age at shearing. Heritability estimates for body weight at birth, 3,6, 9 and 12 months of age and average daily gain during 0-3, 3-6 and 6-12 months of age and greasy fleece weight at first, second and third clips were 0.17±0.06, 0.31±0.08, 0.33±0.09, 0.35±0.10, 0.59±0.14, 0.28±0.08, 0.23±0.07, 0.62±0.14, 0.52±0.11 and 0.32±0.10 and 0.11±0.09, respectively. Heritability estimates for all the growth traits was moderate to high, suggesting further scope for genetic improvement in the flock.
机译：本研究的目的是审查非遗传因素对1482年Magra绵羊的生长和羊毛特征的影响，在5岁以下（2008-12）维持在干旱地区校园，炼金中央绵羊和羊毛研究院，比科纳尔。在出生时，最小二乘对于体重，3,6,9和12个月的年龄分别为3.18±0.02,16.12±0.14,23.72±0.20,28.37±0.21和31.88±0.25千克。在0-3,3-6和6-12个月期间，体重的平均每日增益分别为143.45±1.43,84.23±1.35和40.22±1.13g。对于第一，第二和第三剪辑的油腻羊毛重量，最小二乘装置分别为567.18±5.16,628.08±4.97和640.01 + 5.45克。最小二乘因差异分析显示出生年度和性行为的所有特征的效果。奇偶校验的固定效果仅在出生体重上具有显着的（P <0.01）效果。除了3-6和6-12个月，除了平均每日增益外，大坝的羔羊的体重是重要的（p <0.01）的变异源，除了平均每日收益。在剪切时，羊肉年龄的羊毛最初，第二和第三剪辑起初，第二和第三剪辑的羊毛重量显着影响了（P <0.01）。遗传性在出生时体重的遗传性估算，3,6,9和12个月的年龄和平均每日增益在0-3期，3-6和6-12个月的年龄和油腻的羊毛重量起初，第二和第三个夹子为0.17 ±0.06,0.31±0.08,0.33±0.09,0.35±0.10,0.59±0.14,0.28±0.08,0.23±0.07,0.62±0.14,0.62±0.14,0.52±0.11和0.32±0.32±0.32±0.32±0.32±0.09和0.11±0.09。所有生长特征的遗传性估算中度都是中等的，表明群中的遗传改善的进一步范围。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号