“三丁酸甘油酯+二甲酸钾+植物精油”复合制剂对商品肉兔生产性能、养分表观消化率及血清生化和免疫指标的影响  

Effects of “Tributyl Glyceride+Potassium Dicarbonate+Essential Oil”Combined Additives on Performance, Nutrient Apparent Digestibility, Serum Biochemical and Immune Indexes of Commercial Meat Rabbits

作　　者：詹海杰 张元庆 党文庆 李俊 刘华栋 樊爱芳 任克良[1] 曹亮[1] ZHAN Haijie;ZHANG Yuanqing;DANG Wenqing;LI Jun;LIU Huadong;FAN Aifang;REN Keliang;CAO Liang(College of Animal Science,Shanxi Agricultural University,Taiyuan 030032,China)

机构地区：[1]山西农业大学动物科学学院,太原030032

出　　处：《动物营养学报》2024年第9期5924-5934,共11页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：山西农业大学科技创新提升工程项目(CXGC202408);财政部和农业农村部国家现代农业产业技术体系(CARS-43-B-3)。

摘　　要：本试验旨在研究饲粮中添加不同剂量的“三丁酸甘油酯+二甲酸钾+植物精油”复合制剂对商品肉兔生产性能、养分表观消化率及血清生化和免疫指标的影响。选取300只健康断奶伊拉商品肉兔,随机分为5个组,每组60个重复,每个重复1只肉兔。A组为空白对照组,饲喂基础饲粮;B组为抗生素对照组,饲喂基础饲粮+20 g/t恩拉霉素+52.5 g/t金霉素;C、D、E组为试验组,分别饲喂基础饲粮+1.0 kg/t三丁酸甘油酯+0.6%二甲酸钾+200 g/t植物精油、基础饲粮+1.5 kg/t三丁酸甘油酯+0.8%二甲酸钾+300g/t植物精油、基础饲粮+2.0 kg/t三丁酸甘油酯+1.0%二甲酸钾+400 g/t植物精油。预试期5 d,正试期30 d。结果表明:1)E组的末重、平均日增重、半净膛屠宰率、全净膛屠宰率、腿肌率与A组相比均有显著提高(P<0.05),与B组相比无显著差异(P>0.05);各试验组的料重比与B组差异不显著(P>0.05),但E组的料重比显著低于A组(P<0.05);各试验组之间,随着复合制剂添加量的增加,试验兔腹泻率和死亡率有降低的趋势,其中以E组最低。2)各试验组的粗蛋白质、粗脂肪表观消化率与B组相比差异不显著(P>0.05),但均显著高于A组(P<0.05)。3)胸腺指数和圆小囊指数均以E组最高,与A组相比差异显著或极显著(P<0.05或P<0.01),与B组相比差异不显著(P>0.05)。4)E组的血清免疫球蛋白A(IgA)、免疫球蛋白G(IgG)、免疫球蛋白M(IgM)、白细胞介素-10(IL-10)、白蛋白(ALB)含量与总抗氧化能力(T-AOC)显著或极显著高于A组(P<0.05),与B组差异不显著(P>0.05);血清谷丙转氨酶(ALT)、谷草转氨酶(AST)活性以E组最低,显著低于A组(P<0.05)。综上所述,本试验条件下,肉兔饲粮中复合制剂的适宜添加量为2.0 kg/t三丁酸甘油酯+1.0%二甲酸钾+400 g/t植物精油。The purpose of this experiment was to research the effects of adding different doses of“tributyl glyceride+potassium dicarbonate+essential oil”combined additives to diets on performance,nutrient apparent digestibility,serum biochemical and immune indexes of commercial meat rabbits.A total of 300 weaned Hyla commercial meat rabbits were randomly divided into 5 groups with each group had 50 rabbits and 1 rabbit as a replicate.The experiment consists of one blank group(group A,),one antibiotic group(group B),and three experimental groups(groups C,D and E).Rabbits in groups A,B,C,D and E were fed basal diet,basal diet+20 g/t enramycin+52.5 g/t chlortetracycline,basal diet+1.0 kg/t tributyl glyceride+0.6%potassium formate+200 g/t essential oil,basal diet+1.5 kg/t tributyl glyceride+0.8%potassium formate+300 g/t essential oil,basal diet+2.0 kg/t tributyl glyceride+1.0%potassium formate+400 g/t essential oil,respectively.The pre-trial period was 5 days,and the formal trial period was 30 days.The results showed as follows:1)the final weight,average daily gain,semi-eviscerated percentage,eviscerated percentage and leg muscle percentage of group E were significantly improved compared with group A(P<0.05),but there were no significant differences compared with group B(P>0.05);the feed to gain ratio of each experimental group was not significantly different from group B(P>0.05),but the group E was significantly lower than group A(P<0.05);among experimental groups,as the additive amount of combined additives increased,the diarrhea rate and mortality rate of experimental rabbits showed a decreasing trend,with group E had the lowest.2)The differences in crude protein and ether extract apparent digestibility between each experimental group and group B were not significant(P>0.05),but were significant compared with group A(P<0.05).3)The thymus index and sacculus rotundus index were the highest in group E,and they were significantly or extremely significantly different from group A(P<0.05 or P<0.01),but not significantly diffe

关 键 词：三丁酸甘油酯 二甲酸钾 植物精油 肉兔 生产性能 血清生化和免疫指标 

分 类 号：S829.1[农业科学—畜牧学]