| 摘要: |
| 在前后期基础饲粮中分别添加0.0％、0.1％、0.2％、0.3％的L—赖氨酸·HCL（基础饲粮赖氨酸含量分别为1.02％和0.84％）饲喂海布罗商品代仔鸡，8周龄结束时屠宰分割结果表明：添加赖氨酸对屠宰率、半净膛率、全净膛率、胸肌率、腿肌率、脚重率、翅重率、腹脂率和肌胃重等均无显著影响（P＞0.05）；性别对上述前５项指标及肌胃重也无明显作用（P＞0.05），但公鸡腹脂率极显著低于母鸡（P＜0.01），翅重率和脚重率则明显高于母鸡（P＜0.05）。 |
| 关键词: 肉仔鸡，胴体品质，赖氨酸，性别 |
| DOI： |
| 分类号:S831.5 |
| 基金项目:西北农业大学青年科学基金资助项目 |
|
| Lysine Requirement for Broiler Chickens Ⅰ.Effects of Dietary Lysine Levels and Sex |
|
Gong Yuesheng XueQiao Cao Yuli
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| Abstract: |
| The basal diets with 0.0%,0.1%,0.2% and 0.3% of L-lysine·HCL
(Lysinesin the basaldiets are 1.02% and 0.84% respectively) were fed to the commercial broilers. They were killed to determine carcass composition sat the age of 8 weeks:
There sults showed that the rewasno signifieant effects,with Iysine added,upon slaughter,half net carcass,whole net carcass,chest muscle,leg muscle,abdominal fat and stomach muscle percentages(P>0.05).Also sex had no effects upon the above 5 indexes and
stomach muscle (P>0.05).The abdominal fa tperecntage of male birds was significantly
lower than tha tof female ones(P<0.01),but wing and foot weight percentage was obviously higher than that of female birds.(P<0.05). |
| Key words: Broilers,carcass quality,lysine,sex |
