动物营养学报2016，Vol.28Issue(3)：797-806,10.DOI:10.3969/j.issn.1006-267x.2016.03.020
木薯渣在50～70日龄仔鹅饲粮中的适宜添加量
Optimum Supplemental Level of Cassava Residues for Geese at 50 to 70 Days of Age
摘要
Abstract
The objective of this experiment was to study on optimum supplemental level of cassava residues for geese at 50 to 70 days of age.Two hundred 49-day-old healthy male geese with similar body weight were ran-domly allocated into 5 groups with 4 replicates and each replicate had 10 geese.The control group was fed a basal diet and experimental groups were fed experimental diets supplemented with 5%, 10%, 15%and 20%cassava residues, respectively.The results showed as follows: 1 ) compared with the control group, dietary cassava residues significantly reduced the energy apparent utilization of geese at 10 weeks of age ( P<0.05);dietary supplemented with 10%, 15%and 20%cassava residue significantly improved the average daily feed intake ( ADFI) of geese at 64 to 70 days of age and 50 to 70 days of age ( P<0.05); dietary supplemented with 15%, 20%cassava residue significantly improved the average daily gain ( ADG) of geese at 50 to 56 days of age ( P<0.05);dietary supplemented with 20%cassava residue significantly reduced the percentage of abdominal fat and significantly improved ash content in muscle of geese ( P<0.05) .2) Dietary cassava residue had no significant effect on other slaughtering performance, nutrient apparent utilization, meat quality and con-ventional nutrients content of muscle ( P>0.05) .3) Otherwise, by the quadratic relationship of feed cost re-duction percentage and economic benefit, we know when the adding amount of cassava residue was 21.4%, the fodder cost reduction percentage was maximum;when the adding amount of cassava residue was 20.9%, e-conomic benefits was maximum.Therefore, the diets of adding appropriate cassava residues can promote the growth of geese, but no significant influence on slaughtering performance and nutrient apparent utilization, meat quality and conventional nutrients content of muscle.According to growth performance, slaughter per-formance, nutrient apparent utilization and economic benefit analysis, the feasible adding amount of cassava residue is 20%.关键词
木薯渣/仔鹅/生长性能/屠宰性能/经济效益Key words
cassava residues/geese/growth performance/slaughter performance/economic benefits分类
农业科技引用本文复制引用
杨海明,张芬芬,王志跃,李彦品,巨晓军..木薯渣在50～70日龄仔鹅饲粮中的适宜添加量[J].动物营养学报,2016,28(3):797-806,10.基金项目
国家公益性行业（农业）科研专项（201303144）；江苏省农业三项工程项目［SX（2014）312］；扬州大学“新世纪人才工程”资助 （）
