不同硒添加量对生茸期梅花鹿生产性能、营养物质表观消化率及血清生化指标的影响  

Effects of Different Selenium Additions on Performance,Nutrient Apparent Digestibility and Serum Biochemical Indexes of Sika Deer during Antler⁃Growing Period

作　　者：史鸿鹏 陈丽红 司华哲 刘可园[1] 南韦肖 王金铭 杨乾龙 李光玉[1] 孙伟丽[1] SHI Hongpeng;CHEN Lihong;SI Huazhe;LIU Keyuan;NAN Weixiao;WANG Jinming;YANG Qianlong;LI Guangyu;SUN Weili(Institute of Special Animal and Plant Sciences of Chinese Academy of Agricultural Sciences,Changchun 130112,China)

机构地区：[1]中国农业科学院特产研究所,长春130112

出　　处：《动物营养学报》2021年第4期2235-2244,共10页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：吉林省科技发展计划项目(20200404004YY);国家重点研发计划(2018YFC1706600);中国农业科学院科技创新工程(CAAS⁃ASTIP⁃2018⁃ISAPS)。

摘　　要：本试验旨在研究不同硒添加量对生茸期梅花鹿生产性能、营养物质表观消化率及血清生化指标的影响。选取20头体况相近、5岁的健康生茸期梅花鹿,随机分为4组(每组5个重复,每个重复1头),分别饲喂在基础饲粮基础上添加0(Ⅰ组,作为对照组)、0.3(Ⅱ组)、1.2(Ⅲ组)和4.8 mg/kg硒(Ⅳ组)的饲粮,硒来源为酵母硒(硒含量为2000 mg/kg)。预试期7 d,正试期60 d。结果显示:1)Ⅲ组茸重和茸尺指标数值高于其他组,但差异未达显著水平(P>0.05);Ⅳ组硒体沉积量极显著高于其他各组(P<0.01)。2)Ⅱ组粗蛋白质的表观消化率极显著高于Ⅲ组(P<0.01);Ⅱ组干物质、钙、磷的表观消化率极显著高于Ⅰ组和Ⅲ组(P<0.01);Ⅱ组干物质、粗蛋白质和磷的表观消化率显著高于Ⅳ组(P<0.05);Ⅱ组硒的表观消化率极显著高于Ⅲ组和Ⅳ组(P<0.01);Ⅲ组粗蛋白质的表观消化率极显著低于Ⅰ组(P<0.01);Ⅳ组磷的表观消化率极显著高于Ⅰ组(P<0.01)。饲粮硒添加量对粗脂肪的表观消化率无显著影响(P>0.05)。3)Ⅳ组血清胆固醇(CHO)含量显著高于Ⅰ组(P<0.05);Ⅳ组血清高密度脂蛋白胆固醇(HDL⁃C)含量极显著高于Ⅰ组(P<0.01);Ⅱ组、Ⅳ组血清乳酸脱氢酶(LDH)活性极显著高于Ⅰ组(P<0.01);Ⅲ组血清LDH活性显著高于Ⅰ组(P<0.05);饲粮硒添加量对血清甘油三酯(TG)、低密度脂蛋白胆固醇(LDH⁃C)、葡萄糖(GLU)含量无显著影响(P>0.05)。4)Ⅳ组血清总蛋白(TP)含量显著高于Ⅰ组、Ⅱ组(P<0.05);Ⅲ组血清尿素氮(UN)含量显著高于Ⅱ组(P<0.05)。各组血清白蛋白(ALB)、球蛋白(GLOB)含量以及白蛋白与球蛋白之比(A/G)无显著差异(P>0.05)。5)Ⅱ组和Ⅲ组血清碱性磷酸酶(ALP)活性极显著高于Ⅰ组(P<0.01);Ⅰ组血清谷丙转氨酶(ALT)活性显著高于Ⅳ组(P<0.05)。饲粮硒添加量对血清谷草转氨酶(AST)活性无显著影响(P>0.05),但是随着硒添加量的升高,血清AST活性有升高趋势。综合�The purpose of this experiment was to investigate the effects of different selenium additions on the performance,nutrient apparent digestibility and serum biochemical indexes of sika deer during antler⁃growing period.Twenty 5⁃year⁃old healthy sika deer with similar body condition were randomly divided into 4 groups with 5 replicates per group and 1 deer per replicate.They were fed the basal diet with selenium addition of 0(groupⅠ,as control group),0.3(groupⅡ),1.2(groupⅢ)and 4.8 mg/kg(groupⅣ),respectively.Selenium source was yeast selenium(selenium content was 2000 mg/kg).The pre⁃trial period was 7 days and the formal trial period was 60 days.The results showed as follows:1)the values of antler weight and antler measurement indexes in groupⅢwere the higher than those in the other groups,but the differences were not significant(P>0.05),and the body selenium deposition in groupⅣwas extremely significantly higher than that in other groups(P<0.01).2)The apparent digestibility of crude protein in groupⅡwas extremely signif⁃icantly higher than that in groupⅢ(P<0.01);the apparent digestibility of dry matter,calcium and phosphor⁃us in groupⅡwas extremely significantly higher than that in groupsⅠandⅢ(P<0.01);the apparent digest⁃ibility of dry matter,crude protein and phosphorus in groupⅡwas significantly higher than that in groupⅣ(P<0.05);the apparent digestibility of selenium in groupⅡwas extremely significantly higher than that in groupsⅢandⅣ(P<0.01);the apparent digestibility of crude protein in groupⅢwas extremely significantly lower than that in groupⅠ(P<0.01);the apparent digestibility of phosphorus in groupⅣwas extremely sig⁃nificantly higher than that in groupⅠ(P<0.01).Dietary selenium addition had no significant effect on the e⁃ther extract apparent digestibility(P>0.05).3)The content of serum cholesterol(CHO)in groupⅣwere significantly higher than that in groupⅠ(P<0.05);the content of serum high density lipoprotein cholesterol(HDL⁃C)in groupⅣwas ex

关 键 词：酵母硒 梅花鹿 生产性能 营养物质表观消化率 血清生化指标 

分 类 号：S825[农业科学—畜牧学]