首页|能量和蛋白水平对生长育肥阶段皖西白鹅生长性能、肠道酶活性及血液指标的影响

能量和蛋白水平对生长育肥阶段皖西白鹅生长性能、肠道酶活性及血液指标的影响

Effects of energy and protein levels on growth performance,intestinal enzyme activity,and blood indicators of Wanxi white geese during growth and fattening stages

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  • 国家科技期刊平台
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试验旨在探究皖西白鹅育肥阶段饲粮适宜的能量和蛋白水平.选用180只1日龄体重接近、健康的皖西白鹅,随机分为6组,每组5个重复,每个重复6只,采用2×3因子设计高代谢能(12.3 MJ/kg)、低代谢能(11.8MJ/kg)以及高蛋白(16.3％)、中蛋白(15.3％)、低蛋白(14.3％)6种不同能量和蛋白水平的饲粮.试验期63 d.结果显示:63日龄时D组(11.8MJ/kg、16.3％)皖西白鹅日增重显著高于A组、C组、E组(P＜0.05),料重比最低;D组肠道麦芽糖酶活性显著高于A组、B组、E组、F组(P＜0.05);胰蛋白酶活性排序为D组＞F组＞A组＞C组＞B组＞E组.研究表明,育肥阶段皖西白鹅饲粮适宜的代谢能、蛋白水平分别为11.8MJ/kg、16.3％.
The aim of this experiment was to investigate the appropriate energy and protein levels of Wanxi white geese at fattening stage.A total of 180 one-day-old healthy Wanxi white geese with close body weight were randomly divided into six groups with five replicates per group and six geese per replicate.A 2 × 3 factor design experiment was adopted.Six diets with different energy and protein levels were designed:High metabolizable energy(12.3 MJ/kg),low metabolizable energy(11.8 MJ/kg),high protein(16.3％),medium protein(15.3％),and low protein(14.3％).The experiment lasted for 63 days.The results showed that the daily gain of Wanxi white geese in group D(11.8 MJ/kg,16.3％)at 63 days of age was significantly higher than that in the group A,group C,and group E(P＜0.05),and the ratio of feed to gain was the lowest.The intestinal maltase activity of Wanxi white geese in the group D was the highest,and significantly higher than that in the group A,group B,group E,and group F(P＜0.05).The order of trypsin activity was group D＞group F＞group A＞group C＞group B＞group E.The study indicates that the optimal dietary metabolizable energy and protein levels of Wanxi white geese at fattening stage are 11.8 MJ/kg and 16.3％,respectively.

Wanxi white gooseenergy and protein levelsgrowth performanceintestinal enzyme activityblood indicators

张鑫、江幸、张康、胡倩倩、岳隆耀、任曼、李升和

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安徽科技学院动物科学学院,安徽滁州 233100

北京巍微营养科技有限公司,北京 100000

皖西白鹅 能量蛋白水平 生长性能 肠道酶活性 血液指标

国家自然科学基金国家自然科学基金国家自然科学基金安徽省科技重大专项安徽省科技重大专项安徽省高等学校学科(专业)拔尖人才学术项目安徽省高等学校优秀科研创新团队项目安徽省高等学校优秀青年科研项目安徽省地方鹅种基因库项目安徽省滁州市科技计划

31672502315021373150196817030701004201903a06020002gxbjZD20200802022AH0100882022AH0301462022ZN002

2024

10.13557/j.cnki.issn1002-2813.2024.10.010

饲料研究
北京市营养源研究所

饲料研究

CSTPCD北大核心
影响因子：0.391
ISSN：1002-2813
年,卷(期)：2024.47(10)
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