The effects of wheat replacing corn and adding xylanase on the growth performance,slaughter performance,and meat quality of fattening pigs
Experimental analysis of the effects of wheat replacing corn and adding xylanase on the growth performance,slaughter performance,and meat quality of fattening pigs. 144 fattening pigs with similar initial weight(85.48±4.91 kg)were selected and randomly divided into 3 groups. The CON group received a basic diet,while the 2 experimental groups used 50％ wheat to replace some of the corn in the basic diet(the Wheat group did not add xylanase;the Xylanase group added 4 g/t xylanase). Each group had 4 replicates,with 12 pigs per replicate. The pre trial period is 7 days,and the main trial period is 35 days. Result:(1)Compared with the CON group,the final weight and average daily weight gain of fattening pigs in the Wheat group were significantly reduced by 2.45％ and 11.41％(P<0.05),and the feed to weight ratio was significantly increased by 11.93％(P<0.05). Compared with the CON group,the Xylanase group showed no significant differences in final weight,average daily weight gain,and feed to weight ratio in fattening pigs(P>0.05).(2)Compared with the CON group,the pre slaughter live weight,carcass weight,and eye muscle area of fattening pigs in the Wheat group were significantly reduced(P<0.05). Compared with the CON group,there was no significant difference in pre slaughter live weight,carcass weight,and eye muscle area between the Xylanase group and the fattening pigs(P>0.05).(3)There was no significant difference in meat quality indicators among the CON group,Wheat group,and Xylanase group in fattening pigs(P>0.05). Conclusion:Simply replacing a portion of corn in the basic diet with 50％ wheat reduces the growth and slaughter performance of fattening pigs;Replacing part of the corn in the base diet with 50％ wheat+4g/t xylanase did not have a negative impact on the growth and slaughter performance of fattening pigs. Therefore,wheat+xylanase has a good substitution effect for corn.
万方数据
维普
