...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Revista Brasileira de Ciência Avícola >Subsequent Effect of Dietary Lysine Regimens Fed in the Starter Phase on the Growth Performance, Carcass Traits and Meat Chemical Composition of Aseel Chicken in the Grower Phase
【24h】

Subsequent Effect of Dietary Lysine Regimens Fed in the Starter Phase on the Growth Performance, Carcass Traits and Meat Chemical Composition of Aseel Chicken in the Grower Phase

机译：在起步阶段饲喂赖氨酸日粮对生长阶段鹅肉鸡生长性能，Car体性状和肉化学成分的影响

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This study was designed to examine carryover effect of dietary lysine (Lys) levels fed during the starter phase on the growth performance of three varieties of Aseel chickens. A total of 378 birds (126 from each variety) derived from a previous experiment, in which birds were distributed according a randomized block design in a 3×3 factorial arrangement, were evaluated from 7-18 weeks of age. Treatments consisted of three varieties of Aseel chicken [(Mianwali (MW), Peshawari (PW) and Lakha (LK)] fed three dietary Lys regimes (high, medium and low) during the starter phase (0-6 weeks). In the present experiment, the performance parameters, carcass traits, and meat chemical composition six replicates of seven birds per treatment were evaluated. The MW variety exhibited higher weight gain and better feed to gain ratio ( p 0.05). Previous medium dietary Lys regimen improved weight gain, feed to gain ratio, final weight gain ( p≤ 0.05). Birds previously fed medium dietary Lys showed higher thigh dry matter content ( p 0.05), and those previously fed low Lys significantly higher thigh crude protein (CP) content ( p 0.05). The highest breast muscle CP % were observed birds previously fed the high Lys regime ( p 0.05), those of the MW variety ( p 0.05). Higher slaughter weight and carcass weight and yield were obtained in the birds previously fed to medium dietary Lys level ( p 0.05), and the MW variety showed overall better carcass traits ( p 0.05). It is concluded that medium Lys levels in the starter feed promote subsequent better growth performance and that the MW variety has better carcass traits, it may be used as for rural chicken meat production.
机译：这项研究旨在检查在起步阶段饲喂的赖氨酸（Lys）水平对三种Aseel鸡生长性能的残留影响。评估了来自先前实验的总共378羽鸟类（每个品种126羽），其中按照7×18周龄按照3×3因子排列的随机区组设计分布了鸟类。治疗包括在开始阶段（0-6周）以三种饮食Lys方案（高，中和低）饲喂3种不同的Aseel鸡（（Mianwali（MW），Peshawari（PW）和Lakha（LK）））。在本实验中，评估了每种处理方法的性能参数，car体性状和肉的化学成分，每只处理了七只鸡，重复了六次，其中MW品种表现出更高的增重和更好的饲料增重比（p <0.05）。增重，饲料增重比，最终体重增加（p≤0.05）。以前饲喂中等饮食Lys的家禽的大腿干物质含量较高（p <0.05），而以前饲喂低Lys的家禽的大腿粗蛋白（CP）含量较高（p <0.05）。观察到最高饲喂高Lys的家禽（p <0.05），MW种类的家禽（p <0.05）的最高胸肌CP％。禽的屠宰体重，car体重量和产量更高以前已将其饮食中的Lys水平设为中等（ p <0.05），而MW品种显示出更好的car体性状（p <0.05）。结论是，起始饲料中的Lys水平中等，可促进随后更好的生长性能，并且MW品种具有更好的car体性状，可用于农村鸡肉生产。

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