摘要
为研究不同赖氨酸水平日粮对49～70日龄临武鸭屠宰性能的影响，试验选取健康、体重接近的49日龄雌性临武鸭240羽，随机分为5个处理（赖氨酸水平分别为0．65％、0．75％、0．85％、0．95％、1．05％），每个处理6个重复，每个重复8只鸭，试验时间为49—70日龄。试验结果显示：饲喂不同赖氨酸水平日粮对49—70日龄雌性临武鸭屠宰率、半净膛率、胸肌率、腿肌率、瘦肉率均无显著影响（P〉0．05），但0．85％赖氨酸水平日粮有提高临武鸭半净膛率、胸肌率、腿肌率和瘦肉率的趋势。0．85％赖氨酸水平组与0．75％赖氨酸水平组的全净膛率相当．且均显著高于1．05％赖氨酸水平组（P〈0．05）。0．85％和1．05％赖氨酸水平组腹脂率最低，均显著低于0．65％和0．75％赖氨酸水平组（P〈0．05或P〈0．01）。由此可见，以屠宰性能作为评价指标，49～70日龄雌性临武鸭日粮的赖氨酸水平为0．85％时最优。
In order to study the effect of Lys on slaughter performance of 49 to 70-day-old Linwu duck, 240 healthy Linwu duck with nearly same weight were randomly selected and allocated to 5 groups （the level of Lys were 0.65%, 0.75% ,0.85%,0.95%, 1.05%） with 6 replicates of 8 each replicate.The experiment period was from 49 to 70 days of age. The results showed that：there was no significant difference on slaughter rate,percentage of half-eviscerated yield, percentage of breast muscle,percentage of leg muscle and percentage of lean meat among each group （P 〉 0.05）.But the diet of 0.85% Lys level group had a trend of increasing the percentage of half-eviscerated yield,percentage of breast muscle ,percentage of leg muscle and percentage of lean meat（P 〉 0.05）, Meanwhile, the percentage of eviscerated yield of 0.85% and 0.75% Lys level group was significantly higher than that of 1.05% Lys level group （P 〈 0.05）.The diet of 0.85% and 1.05% Lys level groups had the lowest percentage of abdominal fat,which were significautly lower than that of 0.65% Lys level group（P 〈 0.05 or P 〈 0.01 ）.In conclusion,49 to 70-day-old Linwu duck fed the diet of 0.85% Lys level could own the best slaughter performance.
出处
《中国饲料》
北大核心
2014年第1期23-25,共3页
China Feed
关键词
赖氨酸
临武鸭
屠宰性能
Lys
Linwu duck
slaughter performance
