动物营养学报2016，Vol.28Issue(3)：851-857,7.DOI:10.3969/j.issn.1006-267x.2016.03.026
饲料调味剂对育成期蓝狐采食量、营养物质消化率、氮代谢及生长性能的影响
Effects of Feed Flavoring Agents on Feed Intake, Nutrition Digestibility, Nitrogen Metabolism and Growth Performance of Growing Blue Foxes
摘要
Abstract
The experiment was conducted to study the effects of feed flavoring agents including the liver fla-vor, milk flavor, sweetener and bowel flavor on feed intake, nutrition digestibility, nitrogen metabolism and growth performance of growing male blue foxes.With the single factor designing, fifty health growing male blue foxes weighing approximately were collected and randomly allocated into five groups, each group contai-ning ten replicates, and one fox per replicate.Foxes were fed the same basal powder diet supplemented with 0 ( control group) , 500 mg/kg liver flavor ( group Ⅱ) , 500 mg/kg milk flavor ( group Ⅲ) , 120 mg/kg sweetener ( group Ⅳ) and 500 mg/kg ( group Ⅴ) bowel flavor, respectively.The experiment lasted 52 d. The experimental results showed as follows:1) compared with the group Ⅰ, the dry matter intake in groupsⅡ and Ⅳwere extremely significantly increased ( P<0.01) , and the dry matter intake in groupⅢwas signifi-cantly increased ( P<0.05) .2) Compared with the group Ⅰ, dry matter output in group Ⅳ was significantly decreased ( P<0.05) , dry matter digestibility in groupsⅡ,Ⅲ,ⅣandⅤwere increased by 4.34%, 9.07%, 9.40%, 5.23%, respectively, but the difference was not significant ( P>0.05) .Group Ⅳ showed a signifi-cantly higher fat digestibility ( P<0.05) .GroupsⅢⅣandⅤshowed a significantly higher protein digestibility ( P<0.01) .3) In the aspect of nitrogen metabolism, nitrogen intake, urine nitrogen and the protein biological value in experimental groups were no significant differences compared with the group Ⅰ ( P>0.05); signifi-cantly lower fecal nitrogen and significantly higher nitrogen deposition and net protein utilization were observed in the group Ⅳ ( P<0.05) .4) Body weight, the total weight gain and average daily gain were no significant difference among all groups ( P>0.05) .Average daily gain in groupⅠwas the lowest, and that in groupsⅡ,Ⅲ,Ⅳand Ⅴwere higher 7.99%, 3.27%, 6.19%, 7.37%, respectively.Ratio of feed to gain from low to high were groupsⅣ, Ⅲ, Ⅱ,Ⅴ and Ⅰ, respectively, but the difference were not significant ( P>0.05) .In conclusion, in this experiment conditions, the feeding flavoring agents of liver flavor, milk flavor sweetener can increase the dry matter intake and nutrition digestibility, and improve the feed utilization of growing blue foxes.The effect of sweetener is the best.关键词
蓝狐/调味剂/采食量/消化率/氮代谢/生长性能Key words
blue fox/feed flavoring agent/feed intake/digestibility/nitrogen metabolism/growth perform-ance分类
农业科技引用本文复制引用
孙伟丽,王卓,樊燕燕,刘峰,孙皓然,李光玉..饲料调味剂对育成期蓝狐采食量、营养物质消化率、氮代谢及生长性能的影响[J].动物营养学报,2016,28(3):851-857,7.基金项目
中国农业科学院科技创新工程专项；饲料风味剂对狐、貉生长发育和消化代谢的影响研究 （）
