饲粮泛酸添加水平对3～5月龄獭兔生产性能和抗氧化功能的影响  

Effects of Dietary Pantothenic Acid Supplemental Levels on Performance and Antioxidant Function of 3 to 5-Month-Old Rex Rabbits

作　　者：赵楠[1] 刘公言 刘磊[1] 朱岩丽[1] 李福昌[1] 

机构地区：[1]山东农业大学动物科技学院,泰安271018

出　　处：《动物营养学报》2015年第8期2614-2621,共8页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：现代农业产业技术体系建设专项(CARS-44-B-1);国家公益性行业(农业)科研专项(2000903006);山东省农业重大应用技术创新课题(肉;獭兔高效高产技术研究;集成与推广)

摘　　要：本试验旨在研究饲粮泛酸添加水平对3-5月龄獭兔生产性能和抗氧化功能的影响。试验选用体况相近的3月龄獭兔200只,随机分成5组,每组40个重复,每个重复1只。5组獭兔分别饲喂泛酸添加水平为0、10、20、40和80 mg/kg的基础饲粮,饲粮中泛酸含量实测值为6.68、15.16、27.32、48.80和88.65 mg/kg。预试期7 d,正试期53 d。结果表明：1）饲粮泛酸添加水平极显著影响平均日采食量（P〈0.000 1）,显著影响料重比（P=0.045 2）,且在饲粮泛酸添加水平为40 mg/kg时料重比最低,对平均日增重无显著影响（P=0.140 1）。2）饲粮泛酸添加水平极显著影响毛皮面积（P〈0.000 1）和被毛长度（P〈0.000 1）,对毛皮重量无显著影响（P=0.106 0）,毛皮厚度有先升高后降低的趋势（P=0.051 5）。随着饲粮泛酸添加水平的提高,毛皮面积及被毛长度先升高后降低,且分别在泛酸添加水平为40和20 mg/kg时达到最大值。3）饲粮泛酸添加水平极显著影响肌肉滴水损失（P=0.003 6）,显著影响肌肉的红度值（P=0.024 6）与黄度值（P=0.015 4）,而对屠宰率（P=0.702 8）、45 min内p H（P=0.100 7）、剪切力（P=0.317 3）和亮度值（P=0.411 1）均无显著影响。当饲粮泛酸添加水平为40 mg/kg时滴水损失最小,黄度值先升高后下降,在饲粮泛酸添加水平为40 mg/kg时达到最大值。4）饲粮添加40 mg/kg泛酸显著降低肝脏中8-异前列腺素F2α（P=0.049 5）、蛋白质羰基含量（P=0.019 5）,极显著降低血浆中8-异前列腺素F2α含量（P=0.001 0）。综合本试验测定指标,3-5月龄獭兔饲粮适宜的泛酸添加水平为20-40 mg/kg（饲粮中泛酸的实测含量为27.32-48.80 mg/kg）。This experiment was conducted to investigate the effects of dietary pantothenic acid supplemental level on performance and antioxidant function of 3 to 5-month-old Rex rabbits.Two hundred 3-month-old Rex rabbits with similar health conditions were randomly assigned to 5 groups with 40 replicates per group and 1 rabbit per replicate.Rabbits in 5 groups were fed with the basal diets supplemented with 0,10,20,40 and 80 mg/kg pantothenic acid,to make the measured values of pantothenic acid content in diets were 6.68,15.16,27.32,48.80 and 88.65 mg/kg,respectively.The trial lasted for 7 days for adaptation and 53 days for test.The results showed as follows： 1） dietary pantothenic acid supplemental level had extremely significant influence on average daily feed intake（P〈0.000 1）,had significant influence on feed/gain（P = 0.045 2）,and the lowest feed/gain was in 40 mg/kg pantothenic acid group,while had no significant influence on average daily gain（P = 0.140 1）.2） Dietary pantothenic acid supplemental level had extremely significant influences on fur area（P〈0.000 1） and wool length（P〈0.000 1）,while had no significant influence on fur weight（P = 0.106 0） and had a tendency to rise before reducing on fur thickness（P = 0.051 5）.3） Dietary pantothenic acid supplemental level had extremely significant influence on drip loss（P = 0.003 6）,had significant influences on meat a＊value（P = 0.024 6） and b＊values（P = 0.015 4）,while had no significant influences on dressing percentage（P = 0.702 8）,p H within 45 min（P = 0.100 7）,shear stress（P = 0.317 3） and meat L＊value（P = 0.411 1）.4）Supplementation of 40 mg/kg pantothenic acid could significantly reduce 8-iso-prostaglandin F2α（8-ISOPGF2α）（P = 0.049 5） and protein carbonyl contents（P = 0.019 5） in liver and extremely significant reduce 8-ISO-PGF2α content in plasma（P = 0.001 0）.Considering all indexes of this experiment,the appropriate dietary pantothenic acid supplemental levels are 20 t

关 键 词：泛酸 獭兔 生产性能 抗氧化 

分 类 号：S816[农业科学—饲料科学]