小麦型日粮添加非淀粉多糖酶对肉猪生长及胴体品质的影响

Effect of NSP Enzymes on the Performance and Carcass Quality of the Pigs Fed on Wheat-based Diets

通过在日粮中添加非淀粉多糖酶,探讨小麦代替全部玉米的饲料对育肥猪的生长及其胴体品质的影响。试验结果表明,加酶小麦组与玉米组相比日增重提高3.7%,料重比下降2.6%,差异均不显著(P>0.05)。不加酶小麦组与玉米组相比日增重下降8.1%,料重比增加10.9%,差异显著(P<0.05)。不加酶小麦组比加酶小麦组日增重下降12.9%,料重比提高13.8%,均呈极显著差异(P<0.01)。在胴体品质和肉质性状方面,饲喂小麦的两组猪无明显差异(P>0.05),但二者均明显好于玉米组(P<0.05)。这表明,全小麦型日粮可明显改善猪的肉质品质,且加酶小麦可代替全部玉米作为能量饲料喂猪,对猪生长肥育性能没有明显差异,而不加酶小麦代替全部玉米对猪的生长和饲料转化率具有明显负面影响。

An experiment was made to determine the effect of wheat-based diets supplemented with non-starch polysaccharide enzymes on the growth and carcass quality of fattening pigs. The pigs were fed on either the corn-based diets (group Ⅰ) or wheat-based diets supplemented with the enzymes (group Ⅱ) or wheat-based diets (group Ⅲ). The results showed that compared with group I, the group Ⅱ increased in ADG by 3.7% and decreased in F/G by 2.6%, and no significant difference was found between these two groups(P<0.05). Compared with group Ⅱ, the ADG of group Ⅲ decreased by 12.9%, and F/G increased by 13.8%, the difference was significant(P<0.01). For carcass quality, there was no significant difference between the two groups fed on wheat-based diets (P>0.05), both of them were better than the group fed on corn-based diets (P<0.05). It was concluded that wheat-based diets could significantly improve pig's carcass quality, and the wheat-based diets with the enzymes could take the place of corn-based diets and wouldn't significantly effect the performance of fattening pigs, but the wheat-based diets without the enzymes would have a significant negative effect on the performance and feed conversion rate of fattening pigs in case of that corn-based diets was fully replaced by it.