动物营养学报Issue(4)：1004-1010,7.DOI:10.3969/j.issn.1006-267x.2014.04.020
饲粮中添加枯草芽孢杆菌和粪肠球菌对育成期蓝狐生长性能、营养物质消化率及氮代谢的影响
Effects of Bacillus subtilis and Enterococcus faecium Supplementations on Growth Performance, Nutrient Digestibility and Nitrogen Metabolism of Growing Blue Foxes
摘要
Abstract
This experiment was conducted to study the effects of Bacillus subtilis and Enterococcus faecium supplementations on growth performance, nutrient digestibility and nitrogen metabolism of growing blue foxes. Eighty-four healthy blue foxes at the age of (55±5) days were randomly assigned into 7 groups with 12 repli-cates per group and 1 fox per replicate. GroupⅠ( control group) was fed a basal diet, groupsII,ⅢandⅣwere fed the basal diet supplemented with 1í108, 1í109 and 1 í1010 CFU/kg Bacillus subtilis, and groupsⅤ, Ⅵ and Ⅶ were fed the basal diet supplemented with 1í108, 1 í109 and 1 í1010 CFU/kg Enterococcus faecium , respectively. The adaptation period lasted for 7 days and the formal period lasted for 57 days. The re-sults showed as follows: the average daily gain in groups Ⅲ, Ⅳ and Ⅴ was significantly higher than that in control group ( P<0 . 05 ) , while the feed/gain in groupsⅢandⅣwas significantly lower than that in control group ( P<0 . 05 ) . The comparison results of all experimental groups showed that the average daily gain in groups Ⅲ and Ⅳ was significantly higher than that in groupⅦ ( P<0 . 05 ) , while the feed/gain in groupsⅢand Ⅳ was significantly lower than that in group Ⅶ ( P<0 . 05 ) . The output of dry matter in groups Ⅲ, Ⅳand ⅴ was significantly lower than that in control group ( P<0 . 05 ) , while the digestibility of dry matter and protein in groupsⅢ,ⅣandⅤwas significantly higher than that in control group ( P<0 . 05 ) . The digestibili-ty of fat in groups Ⅲ and Ⅳ was significantly higher than that in control group ( P<0 . 01 ) , while there was no significant difference between control group and other experimental groups ( P>0 . 05 ) . Compared with all experimental groups, the digestibility of fat in groupsⅢandⅣwas significantly higher than that in groupsII,Ⅵ and Ⅶ ( P<0 . 05 or P<0 . 01 ) . The nitrogen retention in groups Ⅵ and Ⅶ was significantly lower than that in control group ( P <0 . 05 ) , while the nitrogen retention in other experimental groups was higher than that in control group, and the difference reached a significant level in groupsⅢ,Ⅳ andⅤ (P<0. 05 or P<0 . 01 ) . The net protein utilization and biological value of protein in groupsII,Ⅲ,ⅣandⅤwere significant-ly higher than those in groups Ⅵ and Ⅶ ( P<0 . 01 ) , and those in groups Ⅲ, Ⅳ and Ⅴ were significantly higher than those in control group (P<0. 05). In conclusion, the nutrient digestibility, nitrogen retention, net protein utilization, and the biological value of protein of growing blue foxes are ideal when supplementing 1í1010 CFU/kg Bacillus subtilis or 1 í108 CFU/kg Enterococcus faecium in diets, meanwhile, the blue foxes can also get the optimal growth performance.关键词
枯草芽孢杆菌/粪肠球菌/蓝狐/生长性能/营养物质消化率/氮代谢Key words
Bacillus subtilis/Enterococcus faecium/blue fox/growth performance/nutrient digestibility/ni-trogen metabolism分类
农业科技引用本文复制引用
贡筱,郭俊刚,吴学壮,刘志,高秀华,杨福合,邢秀梅..饲粮中添加枯草芽孢杆菌和粪肠球菌对育成期蓝狐生长性能、营养物质消化率及氮代谢的影响[J].动物营养学报,2014,(4):1004-1010,7.基金项目
公益性行业(农业)科研专项(200903014) （农业）
