过瘤胃蛋氨酸和赖氨酸对越冬期梅花鹿幼鹿生长性能、养分消化率及血清生化指标的影响

doi:10.11843/j.issn.0366-6964.2015.06.013

摘要/Abstract

摘要：

本试验旨在研究低蛋白质饲粮中添加过瘤胃蛋氨酸（RPM）和过瘤胃赖氨酸（RPL）对越冬期梅花鹿幼鹿生长性能、消化代谢和血清生化指标的影响。16只健康8月龄遗传背景相近的雄性梅花鹿，随机分为4个组，组间体重无显著差异（每个组4个重复，每个重复1只），饲喂4种不同饲粮：对照组（Ⅰ组）饲喂粗蛋白质（CP）16.52%的高蛋白质饲粮，试验组饲喂CP13.70%添加0.30%RPL并分别添加0（Ⅱ组）、0.08%（Ⅲ组）、0.16%（Ⅳ组）RPM的低蛋白质饲粮，试验期为70 d。结果表明，对照组和Ⅳ组平均日增重（ADG）显著高于Ⅱ组（P＜0.05），平均日采食量（ADFI）显著高于Ⅲ组（P＜0.05），Ⅱ组料重比（F/G）显著高于其余各组（P＜0.05）；对照组磷消化率极显著低于试验组（P＜0.01），且Ⅱ组显著低于Ⅲ组（P＜0.05），Ⅱ组CP和粗脂肪（EE）的消化率显著低于Ⅳ组（P＜0.05）；对照组血清尿素氮（BUN）含量显著高于Ⅲ（P＜0.01）组和Ⅳ组（P＜0.05），葡萄糖（GLU）和尿酸（UA）含量极显著高于其余各组（P＜0.01）；其余各项指标差异不显著（P＞0.05）。由此可见，饲粮CP水平从16.52%降至13.70%直接降低氮、磷排放，幼鹿生长相应延缓，添加0.16%RPM和0.30%RPL能改善幼鹿生长发育、促进物质消化、提高代谢平衡。

关键词: 梅花鹿, 过瘤胃蛋氨酸, 过瘤胃赖氨酸, 低蛋白质

Abstract:

This experiment was conducted to investigate the effects of low crude protein diet supplemented rumen-protected methionine (RPM) and lysine (RPL) on growth performance，nutrient digesitibility and serum biochemical indices in sika deer during the wintering season.Sixteen healthy 8-month-old sika deer were randomly divided into 4 groups with 4 replicates per group and 1 sika deer per replicate.Sika deers were fed 4 diets：Control group (GroupⅠ) fed 16.52% crude protein (CP) basal diet，tests group fed 13.70% CP diet with 0.30% RPL and 0 (Group Ⅱ)，0.08% (Group Ⅲ)，0.16%(Group Ⅳ) RPM.The results showed that average daily gain (ADG) of control group and group Ⅳ were higher than group Ⅱ，and average daily feed intake (ADFI) of group Ⅲ was lower than control group and group Ⅳ，and feed to gain ratio (F/G) of group Ⅱ was higher than other groups(P＜0.05)；digestibility of phosphorus (P) of control group was lower than other groups (P＜0.01) and group Ⅱ was lower than group Ⅲ (P＜0.05)，CP and ether extract(EE) digestibility of group Ⅱ were lower than group Ⅳ；serum urea nitrogen content of control group was higher than group Ⅲ (P＜0.05) and group Ⅳ (P＜0.01)，glucose and uric acid content of control group were higher than other groups (P＜0.01)；other index had no significant influence (P＞0.05).It is concluded that reducing diet CP level from 16.52% to 13.70% reduced nitrogen and phosphorus emission，slowed fawn growth，however，0.16% RPM and 0.30% RPL supplementation would enhance fawn growth，promoted nutrient digestion and metabolism balance.

Key words: sika deer, RPM, RPL, low crude protein

中图分类号:

S825
S815

黄健，鲍坤，张铁涛，崔学哲，李光玉，杨福合，张婷，王凯英. 过瘤胃蛋氨酸和赖氨酸对越冬期梅花鹿幼鹿生长性能、养分消化率及血清生化指标的影响[J]. 畜牧兽医学报, 2015, 46(6): 974-980.

HUANG Jian，BAO Kun，ZHANG Tie-tao，CUI Xue-zhe，LI Guang-yu，YANG Fu-he，ZHANG Ting，WANG Kai-ying*. Effects of Rumen-Protected Methionine and Lysine on Growth Performance,Nutrient Digestibility and Serum Biochemical Indices in Sika Deer during the Wintering Season[J]. ACTA VETERINARIA ET ZOOTECHNICA SINICA, 2015, 46(6): 974-980.

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