摘要
将48头育肥猪(杜×长×大)随机分为2组,每组3个重复,在同一玉米—豆粕型基础日粮中分别添加0.1%半乳甘露寡糖和50mg/kg金霉素,进行了46d的对比试验.饲养试验结束后从两个处理的每个重复分别选择1头阉公猪屠宰,结果表明(1)生长性能:基础日粮添加0.1%GMOS与添加50mg/kg CTC相比较,平均日增重提高10.2%(P<0.05),平均日采食量降低25.2%(P<0.01),料肉比下降13.2%(P<0.01);(2)屠宰性能:基础日粮添加0.1%的GMOS与添加50mg/kg的CTC相比较,背膘厚下降了15.6%,皮厚下降了11.5%,瘦肉率提高了2.94%,但经统计分析,差异均不显著(P>0.05);(3)血清生化指标:与添加50mg/kg的CTC相比,基础日粮添加0.1%的GMOS可使育肥猪血清中的血糖水平升高120%(P<0.05),胆固醇水平下降3.86%(P>0.05),甘油三脂水平下降42.6%(P>0.05);(4)猪肉品质:与添加50mg/kg的金霉素相比,基础日粮添加0.1%的GMOS可显著降低肉中吲哚的含量(P<0.05),对其他肉质指标无显著影响.
Forty-eight finishing pigs （Duroc × Landrace × Yorkshine） were randomly allocated to two groups with three replicates of each. All of pigs were fed with the same basal corn-soybean meal diet, one supplemented with 0.1% galacto-mannan-oligosacharrides （GMOS） and the other supplemented with 50mg/kg chlortetracycline （ CTC）. At the end of the feeding trial for 46 days, six hogs from each replicate were slaughtered for collecting the slaughter performance and meat quality. The results were as follows ： （ 1 ） Addition of 0.1% GMOS in the basal diet could increase the daily weight gain by 10.2% （ P 〈 0.05）, decrease the average daily feed intake by 25.2% （ P 〈 0.01） and improve feed conversion rate by 13.2% （ P 〈 0.01 ） as compared with the 50mg/kg CTC diet; （2） Addition of 0.1% GMOS in the basal diet could decrease backfat thickness and skin thickness by 15.6% and 11.5 %, enhance the fat-free lean by 2.94 % as compared with the 50mg/kg CTC diet, but none were significant in statistical sense （P 〉0.05）; （3） Compared with the addition of 50mg/kg CTC, addition of 0.1% GMOS in the basal diet could significantly increase the blood sugar level by 120% （P 〈 0.05）, decrease the total cholesterol level by 3.86%（ P 〉 0.05） and decrease the triglyceride level by 42.6% （ P 〉 0.05） ; （4） Compared with the addition of 50mg/kg CTC, addition of 0.1% GMOS in the basal diet could significantly decrease the indole content in the pig muscle（ P 〈 0.05）. However, it had not significantly influenced the other meat quality indices.
出处
《中国科学院研究生院学报》
CAS
CSCD
2006年第3期364-369,共6页
Journal of the Graduate School of the Chinese Academy of Sciences
基金
中国科学院知识创新工程重要方向项目(KSCX2-SW-323)
国家自然科学基金项目(30371038)
国家973项目(2004CB117502)资助
关键词
半乳甘露寡糖
金霉素
育肥猪
血清生化指标
猪肉品质
galacto-mannan-oligosacharrides, chlortetracycline, finishing pigs, serum biochemical indices, pork quality
