Effects of supplementary feeding fermented soybean meal on intestinal microflora of Yili foals
This experiment was conducted to investigate the effects of supplementary feeding fermented soybean meal on intestinal microflora diversity and microflora structure composition of Yili mares.Fifteen 12-month-old Yili foals with similar body condition and no history of digestive diseases were randomly divided into three groups with five horses in each group.Control group,experimental groups Ⅰ and Ⅱ were added with 5%common soybean meal,2.5%common soybean meal+2.5%fermented soybean meal and 5%fermented soybean meal on the basis of hay and ordinary concentrate diet,respectively.Prefeeding lasted for 7 days,and the experiment lasted for 56 days.The results showed as follows:A total of 2672029 NO.effective sequences and 32234 amplicon sequence patterns(ASVs)were acquired;With the increase of foal age,the abundance of helicoid in test group Ⅰ was significantly lower on day 56 than on day 0(P<0.01);Proteobacteria in test group Ⅱwere significantly increased(P<0.05),and actinobacteria abundance was significantly decreased(P<0.05);With the increase of fermented soybean meal supplemental level,the abundance of ruminococcus family in test group Ⅱ was significantly higher than that in control group(P<0.05),and the abundance of Streptococcus family was significantly lower than that in control group(P<0.05).In conclusion,supplementation with fermented soybean meal could effectively improve the digestive capacity of foals,prevent the occurrence of hoof inflammation,diarrhea and inflammation,and promote the stability of intestinal flora of foals.