作 者：
孙伟丽;王卓;樊燕燕;杜东升;谷海军;杨福;李光玉
单 位：
牧原食品股份有限责任公司;中国农业科学院特产研究所;沈阳博阳饲料有限责任公司;吉林特研生物技术有限公司
关键词：
人参多糖;水貂;生长性能;营养物质消化率;血清生化指标
摘 要：
本试验旨在研究人参多糖对育成期雄性水貂生长性能、营养物质消化率、氮代谢及血清生化指标的影响。采用单因子试验设计,选择70日龄健康、体重相近的雄性水貂40只,随机分成4组,每组10个重复,每个重复1只水貂。Ⅰ组(对照组)饲喂基础饲粮,Ⅱ、Ⅲ、Ⅳ组分别在基础饲粮中添加10、50和100 mg/kg的人参多糖(干物质基础)。预试期7 d,正试期60 d。结果表明:1)Ⅳ组末重(130日龄体重)和平均日增重显著高于对照组(P<0.05);各组料重比随着人参多糖添加水平升高而逐渐降低,Ⅳ组显著低于对照组和Ⅱ组(P<0.05)。2)Ⅳ组干物质排出量极显著低于对照组和Ⅱ组(P<0.01),Ⅲ、Ⅳ组干物质消化率和粗蛋白质消化率均显著或极显著高于对照组(P<0.05或P<0.01),各组间粗脂肪消化率差异不显著(P>0.05)。3)各组间食入氮、粪氮、尿氮和氮沉积差异不显著(P>0.05);净蛋白质利用率随着人参多糖添加水平升高而逐渐升高,Ⅳ组显著高于对照组(P<0.05)。4)Ⅱ、Ⅲ、Ⅳ组血清白蛋白含量极显著高于对照组(P<0.01),Ⅳ组血清总蛋白、球蛋白、免疫球蛋白M含量显著高于对照组(P<0.05),各组间血清免疫球蛋白G、免疫球蛋白A、总胆固醇、甘油三酯和葡萄糖含量无显著差异(P>0.05)。由此可见,饲粮中添加人参多糖可提高水貂净蛋白质利用率,进而提高干物质消化率和粗蛋白质消化率,调节血清中免疫球蛋白M含量,提高免疫力,提高生长性能。
译 名：
Effects of Giseng Polysaccharide on Growth Performance,Nutrient Digestibility,Nitrogen Metabolism and Serum Biochemical Indices of Minks during Growing Period
作 者：
SUN Weili;WANG Zhuo;FAN Yanyan;DU Dongsheng;GU Haijun;YANG Fu;LI Guangyu;Jilin Provincial Key Laboratory for Molecular Biology of Special Economic Animals,Institute of Special Animal and Plant Sciences,Chinese Academy of Agriculture Sciences;Muyuan Food Company Co.Ltd.;ShenyangBoyang Feed Company,Co.Ltd.;Jilin Teyan Biological Technology Limited Liability Company;
关键词：
giseng polysaccharide;;minks;;growth performance;;nutrient digestibility;;serum biochemical indices
摘 要：
This experiment was conducted to investigate the effects of giseng polysaccharide on growth performance,nutrient digestibility,nitrogen metabolism and serum biochemical indices of minks during growing period. The experiment was designed in a single factor. Forty 70-day-old healthy male minks with similar body weight were randomly divided into 4 groups with 10 replicates per replicate and 1 mink per replicate. The control group(group Ⅰ) was fed a basal diet,and groups Ⅱ,Ⅲ and Ⅳ were fed the experimental diets supplemented with 10,50 and 100 mg/kg giseng polysaccharide(based on dry matter),respectively. The pretest period lasted for 7 days and the formal period lasted for 60 days. The results showed as follows: 1) the final body weight(body weight at 130 days of age) and average daily gain in group Ⅳ was significantly higher than those in control group(P<0.05); the ratio of feed to gain(F/G) was decreased with the giseng polysaccharide supplemental level increasing,and the F/G of group Ⅳ was significantly lower than that in control group and group Ⅱ(P< 0.05). 2) The dry matter output in group Ⅳ was significantly lower than that in control group and group Ⅱ(P<0.05),the dry matter digestibility and crude protein digestibility in groups Ⅲ and Ⅳwere significantly higher than those in control group(P<0.05 or P<0.01),no significant difference was found in crude fat digestibility among all groups(P>0.05). 3) No significant difference was found in nitrogen intake,fecal nitrogen,urine nitrogen and nitrogen retention among all groups(P>0.05); the net protein utilization was increased with the giseng polysaccharide supplemental level increasing,and the net protein utilization in group Ⅳ was significantly higher than that in control group(P<0.05). 4) The serum albumin content in groups Ⅱ,Ⅲ and Ⅳ was significantly higher than that in control group(P<0.01),the content of total protein,globulin and immunoglobulin M in serum was significantly higher than that in control group(P<0.05),no significant difference was found in the content of immunoglobulin M,immunoglobulin A,total cholesterol,triglycerides and glucose in serum among all groups(P > 0. 05). In conclusion,dietary supplemented with giseng polysaccharide can increase the net protein utilization of minks,then improve the dry matter digestibility and crude protein digestibility,regulate the serum immunoglobulin M content,enhance immunity,and improve the growth performance.
