Effects of microecological preparations added to feed on growth performance and rumen microflora of fattening lake sheep
This study aimed to investigate the effects of dietary addition of antimicrobial peptides and Acaprospora culture on the growth performance and rumen microflora of fattening lake sheep.The trial selected 60 healthy weighing 24 kg fattening lake sheep and randomly divided into 3 groups with 10 replicates in each group and 2 sheep(1 ram and 1 ewe)in each replicate.The control group was fed basal diet,and the experimental group added 500 g/t antimicrobial peptide and 1000 g/t culture of A croces doapicalis to the basal diet.The pre-trial period was 14 days,and the formal period was 120 days.The results showed that:(1)The addition of antimicrobial peptides and Acroces decenospora culture had a significant effect on the weight,average daily weight gain and feed-to-weight ratio of fattening lake sheep,the weight of antimicrobial peptide group and Acapices culture group was 11.03％,10.45％higher(P＜0.05)than the control group in the total stage,the average daily gain(ADG)was significantly different from the control group,and the antimicrobial peptide group and the Apicecis culture group were 17.65％higher(P＜0.05)than the control group in the total stage.(2)Compared with the control group in the total stage,the contents of propionic acid,valeric acid,isobutyric acid and isovaleric acid in the rumen juice of the antibacterial peptide group increased significantly,propionic acid,valeric acid isobutyric acid and isovaleric acid was 64.05％,29.41％,36.37％,63.44％higher than that of the control group(P＜0.05).(3)The addition of antimicrobial peptides and Apocetospora culture significantly increased the contents of Bacteroides phylum in the antimicrobial peptide group and the Apocedinus culture group,which increased by 25.10％in the antimicrobial peptide group and 29.65％(P＜0.05)in the Apocedinospora culture group,the Bifidobacterinm of the antimicrobial peptide group was 85.64％P＜0.05)higher than the antrol group.In summary,the addition of antimicrobial peptides and Apocedinus culture to feed had significant impact on the growth performance of fattening lake sheep,and could significantly regulate the rumen microbiota and fermentation mode.
antimicrobial peptidescultures of Acrocystis dospireslake sheepgrowth performancemicroflora
万方数据
维普
