微生物发酵床对育肥猪生产性能及猪肉品质的影响

为研究发酵床养猪对猪肉品质的影响,试验选择28d断奶的杜长大三元杂交仔猪60头,随机分成试验组和对照组,试验组以发酵床饲养,对照组采用常规水泥地面饲养,试验期为125d,试验结束时,每组随机抽样6头猪进行屠宰测定。试验结果:与对照组相比,试验猪日增重和饲料转化效率分别提高了8.49%和6.27%,背膘厚降低6.8%,脂率降低5.37%,腿臀比例增加6.98%,差异均为显著(P<0.05),而眼肌面积,瘦肉率,屠宰率、板油率、骨率及皮率等指标无明显差异(P>0.05),在肉品质方面,试验组猪肉的颜色、pH值、失水率、滴水损失、熟肉率等肉品质指标均有明显的改善(P<0.05)。表明了相对于水泥面饲养,发酵床养猪有明显提高猪的生长性能和猪肉品质的作用。

Effects of Biological Fermentation Bed on Growth Performance and Pork Quality of Growing-finishing Pigs

60 28-day-old Duroc×Landrace×Large white weaning pigs were randomly selected and divided into Experimental group and Control group to study the effect of biological fermentation bed on pork quality of growing-finishing pigs.Experimental group were raised on the fermentation bed;Control group were raised on the conventional concrete floor;the experimental period was 125 days;6 pigs from each group were selected randomly and slaughtered for determination when the experiment was finished.The results: compared with Control group,in Experimental group,average daily gain and feed conversion rate increased 8.49% and 6.27% respectively,back fat decreased 6.8%,fat rate decreased 5.37%,hind leg ratio increased 6.98%,and the difference(P<0.05) was significant;the difference(P>0.05) was insignificant in eyemuscle area,iean meat percentage,dressing percentage,leaf fat percentage,bone percentage,skin percentage,etc;the pork quality indexes such as meat color,PH,water loss rate,drop loss,cooked rate,etc,all had significant improvement(P<0.05).The results show that,compared with the conventional concrete floor,the fermentation bed has obvious effect on improving growth performance and pork quality of growing-finishing pigs.