动物营养学报2015，Vol.27Issue(9)：2963-2969,7.DOI:10.3969/j.issn.1006-267x.2015.09.037
饲粮 L-精氨酸添加水平对冬毛期水貂生长性能、营养物质消化率及氮代谢的影响
Effects of Dietary L-Arginine Supplemental Level on Growth Performance, Nutrient Digestibility and Nitrogen Metabolism of Mink during Winter Fur-Growing Season
摘要
Abstract
This study was conducted to study the effects of dietary L-arginine ( L-Arg) supplemental level on growth performance, nutrient digestibility and nitrogen metabolism of mink during winter fur-growing season. Sixty-three healthy female mink at the age of (150±3) days with the similar body weight were randomly divid-ed into 7 groups with 9 replicates each and 1 mink per replicate. The mink in the 7 groups were fed experimen-tal diets with L-Arg supplemental level of 0 ( group Ⅰ) , 0. 2% ( group Ⅱ) , 0. 4% ( group Ⅲ) , 0. 6%( group Ⅳ) , 0.8% ( group Ⅴ) , 1.0% ( group Ⅵ) and 1.2% ( group Ⅶ) , respectively. The pre-test period lasted for 7 days, and the trial lasted for 60 days. The results showed as follows: 1) the final weight had no significant difference among all groups (P>0.05). The average daily gain of the group Ⅴ was tendentiously higher than that of the other groups, but the difference was not significantly ( P>0.05) . The feed/gain of the group Ⅴ was significantly lower than that of groupsⅠ, Ⅱ and Ⅲ ( P<0.05) . 2) The dry matter intake, dry matter output, dry matter digestibility, protein digestibility and fat digestibility had no significant differences a-mong all groups (P>0.05). 3) The urine nitrogen of the group Ⅳ was significantly lower than that of the group Ⅰ ( P<0.05) . The biological value of protein of the group Ⅳ was greatly significantly higher than that of groups Ⅵ and Ⅶ ( P<0.01) and was significantly higher than that of groupsⅠ andⅡ ( P<0.05) . In con-clusion, when dietary L-Arg supplemental level is 0.6% to 0.8%, that is the total arginine level in the diet is 2.30% to 2.50%, the mink will get the better growth performance and biological value of protein during winter fur-growing season.关键词
冬毛期/水貂/精氨酸/生长性能/营养物质消化率/氮代谢Key words
winter fur-growing season/mink/arginine/growth performance/nutrient digestibility/nitrogen metabolism分类
农业科技引用本文复制引用
万春孟,张铁涛,吴学壮,刘志,崔虎,郭俊刚,王中成,高秀华,邢秀梅..饲粮 L-精氨酸添加水平对冬毛期水貂生长性能、营养物质消化率及氮代谢的影响[J].动物营养学报,2015,27(9):2963-2969,7.基金项目
国家自然资源平台专项"特种经济动物种质资源共享平台"(2005DKA21102) （2005DKA21102）
