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.
维普
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