Yayi, J Effect of Yeast and Organic Acid (Biotronic® Top Forte) on the Gut Microbiota of Broiler Chickens
Abstract
Abstract
This study was conducted at the Teaching and Research Farm, Faculty of Agriculture, Kaduna State University to determine the effects of yeast and organic acid (Biotronic® top forte) as feed additives on the gut microbiota of broiler chickens. One hundred and twenty day-old-broiler chicks obtained from a reputable hatchery were used. The birds were randomly shared into four treatments, each containing three replicates: T1 (control), T2 (yeast), T3 (organic acid) and T4 (yeast and organic acid). Six faecal samples were collected from each treatment (2 chickens/replicate) at the end of a six-week experimental period. Data were analysed using ANOVA in the Statistical Package for Social Sciences (SPSS). The results showed that there was a significant (p<0.05) difference between T1 and T4 for the Total Bacterial Count (TBC), with T1 (5.12±4.46 logCFU/g) having the highest value and T4 (4.74±4.91 logCFU/g) the lowest. The results obtained for Total Coliform Count (TCC) showed no significant (p>0.05) difference among treatments. The results obtained for Total Non-Coliform Count (TNCC) showed a significant (p<0.05) difference between T1 and T2 with T1 (5.11±4.46 logCFU/g) having the highest value and T2 (4.87±4.10 logCFU/g) showing lowest value, suggesting that supplementing the feed with yeast can reduce TNCC. It was also observed that E. coli was not detected in T3 and T4, treatments containing organic acid, suggesting that organic acid may have bactericidal properties against E. coli. It was concluded from the study that supplementing broiler feed with yeast and organic acid as growth promoters does not negatively affect the gut microbiota of broiler chickens.
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References
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