• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Tropical Animal Health and Production >Genetic parameters for carcass traits and body size in sheep for meat production
【24h】

Genetic parameters for carcass traits and body size in sheep for meat production

机译：肉类生产中胴体性状和体型的遗传参数

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 was to estimate the covariance components and genetic parameters of carcass traits and body size of meat sheep by employing animal models for single and multi-trait analyses. Data were collected from herds of adult Santa Ines sheep. The ribeye area, subcutaneous fat thickness, and rump fat thickness, evaluated in vivo by ultrasound images of the carcass; and morphometric traits: fat depth, rump height, chest circumference, chest depth, body length, and rump length were measured, The covariance components and genetic parameters for these traits were estimated by restricted maximum likelihood methodology, considering the random additive direct-genetic effects of the animal and errors associated with each observation, and the fixed effects of the contemporary group, the type of birth, and the age of the animal classes. Heritability estimates for carcass traits and animal size were higher in the three -trait analyses than in the single-trait analyses. The magnitudes of the values obtained indicate that genetic progress can be achieved by selection based on the traits studied.
机译：目的是通过采用单曲和多特征分析的动物模型来估计肉类特征和肉类体尺寸的协方差组分和遗传参数。从成人圣诞老人羊群中收集数据。通过超声图像通过胎体的超声图像在体内评估ribeye区域，皮下脂肪厚度和堆脂肪厚度;测量脂肪深度，臀部高度，胸圆周，胸部深度，体长和臀长长度，考虑到随机添加剂直接遗传效应，通过限制的最大似然方法估算这些性状的协方差分量和遗传参数与每次观察相关的动物和误差，以及当代组的固定效果，出生的类型和动物课程的年龄。三个 - 三脚分析中的胴体性状和动物尺寸的遗传性估计比单一特征分析更高。所获得的值的大小表明可以通过基于所研究的特征来选择遗传进展。

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