The effects of mulberry leaf extract on growth performance,intestinal tissue morphology,and economic benefits of fattening pigs
To investigate the effects of Mulberry Leaf Extract(MLE)on the growth performance,intestinal tissue morphology,and economic benefits of fattening pigs.160 Duroc fattening pigs with similar body weight and age were selected and randomly divided into 4 groups,with 4 replicates in each group,with 10 pigs in each replicate(half male and half female).Each group was fed with mulberry leaf extracts of basal diet+0,500,1000,and 1500 g/t,respectively,and recorded as MLE0 group,MLEL group,MLEM group,and MLEH group.The experiment lasted for 40 days.Result:(1)Compared with the MLE0 group,the average daily weight gain of the MLEM group was significantly increased by 10.81%(P＜0.05),and the feed to weight ratio was significantly reduced by 8.44%(P＜0.05).Compared with the MLE0 group,the average daily weight gain of the MLEL group and MLEH group increased by 6.29%(P＞0.05)and 7.97%(P＞0.05),respectively,while the feed to weight ratio decreased by 3.69%(P＞0.05)and 5.54%(P＞0.05).(2)Compared with the MLE0 group,the MLEL group,MLEM group,and MLEH group significantly increased the duodenal villus height and villus to crypt ratio(P＜0.05).Compared with the MLE0 group,the MLEM group and MLEH group significantly increased the villus height and villus to crypt ratio in the ileum(P＜0.05).(3)The economic benefits of four groups of pig farming are 2104.14 yuan,2176.03 yuan,2489.69 yuan,and 1150.26 yuan,respectively.Among them,the MLEM group has the highest economic benefits.Conclusion:Adding mulberry leaf extract to the basic diet of fattening pigs can improve growth performance and improve intestinal tissue morphology.Considering the cost of feed and the economic benefits of aquaculture,the appropriate level of mulberry leaf extract addition is 1000 g/t.
万方数据
维普
