动物营养学报2016，Vol.28Issue(9)：2830-2838,9.DOI:10.3969/j.issn.1006-267x.2016.09.022
枯草芽孢杆菌与铜协同作用对5~16周龄五龙鹅生长性能、屠宰性能、营养物质利用率及肉品质的影响
Effects of Bacillus subtilis Cooperate with Copper on Growth Performance, Slaughter Performance, Nutrient Availability and Meat Quality of Wulong Geese Aged from 5 to 16 Weeks
摘要
Abstract
This experiment was conducted to study the effects of Bacillus subtilis cooperate with copper on growth performance, slaughter performance, nutrient availability and meat quality of Wulong geese aged from 5 to 16 weeks, and to find a method to reduced dietary copper supplemental level. A total of 360 five-week-old Wulong geese were randomly divided into 6 groups with 6 replicates per group and 10 geese per replicate ( half male and half female) . Geese in the group Ⅰ ( control group) were fed an optimal supplemental level of cop-per ( copper supplemental level was 16 mg/kg, without Bacillus subtilis); and geese in groups Ⅱ to Ⅵ were fed Bacillus subtilis (250 g/t), and were fed the diets supplemented with 0, 4, 8, 12, 16 mg/kg copper, re-spectively. The experiment lasted for 12 weeks. The results showed as follows:1) in the Bacillus subtilis sup-plemental groups, when dietary copper supplemental level was 8 mg/kg, the average daily gain and feed to gain ratio reached the best. 2) The dressed percentage and percentage of half-eviscerated yield in groupsⅣ,Ⅴand Ⅵwere significantly higher than those in groupⅠ( P<0.05 or P<0.01) . 3) The crude protein availability in group Ⅳ was significantly higher than that in group Ⅰ ( P<0.05) , the crude fiber availability, acid deter-gent fiber availability and copper apparent digestibility in groups Ⅳ, Ⅴ and Ⅵ were significantly higher than those in group Ⅰ (P<0.05 or P<0.01). 4) The deposited nitrogen and availability of nitrogen in group Ⅳwere significantly higher than those in group Ⅰ ( P<0.05 or P<0.01) , and the nitrogen from excrement was significantly lower than that in group Ⅰ ( P<0.05) . In conclusion, added Bacillus subtilis to diet can promote the availability of copper, reduce the dietary supplemental level of copper, promote growth performance, slaughter performance and nutrient availability. The optimal supplemental level of Bacillus subtilis is 250 g/t and the level of copper is 8 mg/kg.关键词
枯草芽孢杆菌/铜/鹅/生长性能/屠宰性能/肉品质/营养物质/利用率Key words
Bacillus subtilis/copper/geese/growth performance/slaughter performance/meat quality/nu-trient/availability分类
农业科技引用本文复制引用
张泽楠,王宝维,葛文华,张名爱,岳斌,郑惠文,张洋洋..枯草芽孢杆菌与铜协同作用对5~16周龄五龙鹅生长性能、屠宰性能、营养物质利用率及肉品质的影响[J].动物营养学报,2016,28(9):2830-2838,9.基金项目
国家水禽产业技术体系专项基金(CARS-43-11) （CARS-43-11）
山东省农业重大应用技术创新项目(6681301) （6681301）
