三丁酸甘油酯对保育猪生长性能和腹泻率的影响

Effects of tributyrin on growth performance and diarrhea rate in nursery pigs

挑选体重在8 kg左右、公母均分、“杜×长×大”的三元杂交保育猪180头,随机分成3组,每组5个重复,每个重复12头,试验期21 d,在同幢保育舍中进行分栏并同时开始试验。每组分别饲喂基础日粮(对照组,A组)、添加强力霉素1 kg/t(B组)和添加0.2%三丁酸甘油酯(C组),研究其对保育猪生长性能和腹泻率的影响。结果表明:在头均增重和日增重上,A组与B、C两组差异极显著(P<0.01),B组和C组分别比A组高6.6%和11%左右;B组与C组也差异极显著,C组比B组高4%左右。在腹泻率方面,B组腹泻率显著低于A组(P<0.05),C组腹泻率极显著低于A组(P<0.01),B组与C组腹泻率差异不显著(P>0.05)。A组作为对照组,其腹泻率比B组和C组分别高43.5%和69.5%,C组腹泻率比B组低46%。由此可见,饲粮中添加抗生素和三丁酸甘油酯都能大大提升保育猪的头均增重和日增重,降低仔猪腹泻率,且添加0.2%三丁酸甘油酯显著优于添加抗生素,在一定程度上可替代抗生素。

A total of 180 ternary hybrid“Duroc×Landrace×Yorkshire”nursery pigs the average weight of about 8 kg,evenly divided between males and females,were randomly divided into 3 groups,with 5 replicates in each group and 12 piglets in each replicate.The experiment lasted for 21 days,divide into columns and conducted in the same nursery house while the experiment began simultaneously.Each group was fed with a basic diet(control group A),supplemented with 1 kg/t of doxycycline(group B),and supplemented with 0.2%tributyrin(group C),the experiment was conducted to study the effects of tributyrin on the growth performance and diarrhea rate of nursery pigs.The results showed that in terms of average head weight gain and daily weight gain,there was a very significant difference(P<0.01)between group A and group B and C.Group B and group C were about 6.6%and 11%higher than group A respectively;The difference between group B and group C is also extremely significant,with group C being about 4%higher than group B.In terms of diarrhea rate,group B had a significantly lower diarrhea rate than group A(P<0.05),group C had a significantly lower diarrhea rate than group A(P<0.01),and there was no significant difference in diarrhea rates between group B and group C(P>0.05).As a control group,the diarrhea rate of group A was 43.5%and 69.5%higher than that of group B and group C,respectively.The diarrhea rate of group C was also 46%lower than that of group B.These results indicated that adding antibiotics and tributyrin to diets could greatly improve the average head weight gain and daily weight gain of nursery pigs,reduce the diarrhea rate of piglets,and adding 0.2%tributyrin was significantly better than adding antibiotics,which could to some extent replace antibiotics for addition.