杜仲叶提取物对育肥猪生长性能、血清生化指标和肉品质的影响

The effects of eucommia bark extract on growth performance,serum biochemical indexes,meat quality and economic benefits of fattening pigs

文章旨在研究杜仲叶提取物对育肥猪生长性能、血清生化指标、肉品质的影响。试验将160头杜长大三元杂交育肥猪平均分为对照组(基础日粮)、试验Ⅰ组(基础日粮+100 mg/kg杜仲叶提取物)、试验Ⅱ组(基础日粮+200 mg/kg杜仲叶提取物)、试验Ⅲ组(基础日粮+300 mg/kg杜仲叶提取物),每组4个重复,每个重复10头育肥猪,试验为期50 d。结果表明,各试验组育肥猪的末重、平均日增重、平均日采食量、料重比均与对照组具有显著性差异(P<0.05);各试验组的总蛋白(TP)、尿素氮(BUN)、谷丙转氨酶(ALT)与对照组均具有显著差异(P<0.05);各试验组育肥猪的pH45min、pH24h、剪切力、肌肉脂肪、大理石纹评分、L、b与对照组相比均具有显著性差异(P<0.05)。综上所述,在日粮中添加杜仲叶提取物能有效提升育肥猪的生长性能,改善其血清生化指标及肉品质,在本试验条件下,日粮添加200或300 mg/kg杜仲叶提取物均能达到较好的效果。

The aim of this experiment was to study the effects of Eucommia bark extract on the growth performance,serum biochemical indexes and meat quality of fattening pigs.One hundred and sixty Eucommia longifolia ternary crossbred fattening pigs were selected and equally divided into control group(basal diet),test group I(basal diet+100 mg/kg Eucommia longifolia leaf extract),test group II(basal diet+200 mg/kg Eucommia longifolia leaf extract),and test group III(basal diet+300 mg/kg Eucommia longifolia leaf extract),with four replicates in each group and 10 fattening pigs in each replicate,the experiment lasted for 50 days,5 fattening pigs were randomly selected from each group to compare the growth performance,serum biochemical indexes and meat quality.The results showed that the end weight,average daily weight gain,average daily feed intake,and feed�to-weight ratio of fattening pigs in each experimental group were significantly different from those of the control group(P<0.05);the TP,BUN,and ALT of each experimental group were significantly different from those of the control group(P<0.05);and the pH45min,pH24 h,shear strength,muscle fat,marbling score,and L of fattening pigs in each experimental group,b were all significantly different(P<0.05)compared with the control group.In conclusion,the addition of appropriate amount of Eucommia aurantium leaf extract to the fattening pig ration can effectively enhance the growth performance of the organism and improve its serum biochemical indexes and meat quality.