Effects of Different Proportion of Whole Plant Silage Corn on Slaughtering Performance,Organ Index,Meat Quality and Economic Benefit of Hezuo Pigs
This experiment was designed to investigate the effects of adding different proportions of whole plant silage corn to the ration on slaughter performance,organ index,meat quality and economic benefits of cooperative pigs.Weaned cooperative piglets with good health condition and similar body weight were selected and randomly divided into 4 groups of 8 piglets(half male and half female),the control group was fed with the basal diet,and the test group 1,test group 2 and test group 3 were fed with the addition of 5%,10%and 15%whole-plant silage maize ration,respectively.The pre-test period was 7 d,and the formal test period was 120 d.The results showed that:the carcass front width and fat rate of test group 2 were sig-nificantly higher than those of the control group(P<0.05);the backfat thickness of test group 2 was signifi-cantly higher than that of the control group and test group 1(P<0.05).And the differences in the pre-slaughter live weight,carcass weight,slaughter rate,carcass straight length,carcass diagonal length,lean-ness,carcass back width,bone rate,skin thickness and eye muscle area among the groups were insig-nificant(P>0.05).The differences in the pre-slaughter live weight and carcass weight among the groups were not significant(P>0.05).The organ indices of heart,liver,spleen,lung and kidney in each test group did not differ signifi-cantly from those of the control group(P>0.05).Meat drip loss in the test 2 and 3 groups was significantly higher than that in the control group(P<0.05);mar-bling was significantly higher in the test group 2 than that in the test group 1(P<0.05);and the meat color of the test 2 group was significantly higher than that of the test group 1 in terms of lightness and redness.And redness were significantly higher than those of the control group(P<0.05).The weight gain benefits per pig in the control group,test group 1,test group 2 and test group 3 were 701.74 yuan,792.61 yuan,869.22 yuan and 741.47 yuan,respectively.Compared with the control group,the efficiency of weight gain of test group 1,test group 2 and test group 3 increased by 12.95%,23.87%and 5.66%respectively,and the cost of weight gain was reduced by 1.10、1.65 and 1.28 yuan/kg respectively.In conclusion,the addition of 10%whole-plant silage maize ration could improve the slaughtering performance,organ index,meat quality and economic benefits of cooperating pigs.
万方数据
维普
