饲养方式和低营养水平对5-8周龄肉鹅生长性能和血清生化指标的影响  

Effects of Feeding Modes and Low Nutrient Levels on Growth Performance and Serum Biochemical Indexes of Meat Geese Aged from 5 to 8 Weeks

作　　者：孙利亚[1] 汪勇 谢和芳[1] 

机构地区：[1]西南大学荣昌校区动物科学系,重庆402460 [2]罗甸县动物卫生监督所,罗甸550025

出　　处：《动物营养学报》2015年第3期740-748,共9页CHINESE JOURNAL OF ANIMAL NUTRITION

摘　　要：本试验旨在研究饲养方式和低营养水平对5-8周龄肉鹅生长性能和血清生化指标的影响。采用两因素试验设计,饲养方式采用网上平养和地面平养,能量和粗蛋白质设置3个水平（A组：9.50 MJ/kg和13.00%,B组：10.00 MJ/kg和14.00%,C组：10.50 MJ/kg和15.00%）。将360只28日龄、初始体重为（1 226.89±13.23）g的四川白鹅随机分为6个组,每组6个重复,每个重复10只鹅。试验期28 d。结果表明：饲养方式对肉鹅的平均日采食量、料重比影响不显著（P〉0.05）,但网上平养肉鹅的平均日增重显著高于地面平养（P〈0.05）,低营养水平及饲养方式与低营养水平的互作对肉鹅生长性能的影响不显著（P〉0.05）,但B组的平均日增重最大,料重比最小;网上平养血清尿酸含量显著低于地面平养（P〈0.05）,血清甘油三酯含量极显著高于地面平养（P〈0.01）,B组的血清尿酸含量显著低于C组（P〈0.05）,饲养方式与低营养水平的互作对血清葡萄糖含量有显著影响（P〈0.05）。综合考虑,本试验条件下,网上平养更有利于肉鹅的生长,5-8周龄肉鹅饲粮适宜能量水平为9.50-10.00 MJ/kg,适宜粗蛋白质水平为13.00%-14.00%。This study was conducted to investigate the effects of feeding modes and low nutrient levels on growth performance and serum biochemical indexes of meat geese aged from 5 to 8 weeks. Two-factor experi-mental design was used with different feeding modes （ net bed rearing and ground level rearing） and different energy and crude protein levels （group A： 9.50 MJ/kg, 13.00%; group B： 10.00 MJ/kg, 14.00%; group C：10.50 MJ/kg, 15.00%）. A total of 360 geese with an initial body weight of （1 226.89±13.23） g were randomly distributed into 6 groups with 3 replicates per group and 10 geese per replicate. The experiment lasted for 28 days. The results showed that the average daily feed intake （ ADFI） and feed to gain ratio （ F/G） of geese were not significantly affected by feeding mode （ P〉0.05） , while the average daily gain （ ADG） of net bed rearing was significantly higher than that of ground level rearing （ P〈0.05） . It was also demonstrated that the growth performance of geese was not significantly affected by the low nutrient level and the interaction of the two factors, although ADG and F/G of group B displayed better value. The serum uric acid （ UA） content of net bed rearing was significantly lower than that of ground level rearing （ P〈0.05） , and serum triglycerides （ TG） content of net bed rearing was significantly higher than that of ground level rearing （ P〈0.01） . The ser-um UA content of group B was significantly higher than that of group C （ P〈0.05） . The interaction of the two factors displayed significant effect on serum glucose （GLU） content （P〈0.05）. It is concluded that net bed rearing can be more conducive to the growth of geese, and the optimal energy and crude protein levels for 5 to 8 weeks geese is 9.50 to 10.00 MJ/kg and 13.00% to 14.00%, respectively.

关 键 词：饲养方式 能量 蛋白质 生长性能 血清生化 四川白鹅 

分 类 号：S835[农业科学—畜牧学]