Abstract
Food safety and quality have been a significant and crucial predicament
recently. In poultry, development of novel antimicrobial strategies for
drug-resistant pathogens is desired. Here, Phytogenic Feed Additives
(PFA) were administered in chicken diet to decipher their impact on
animal performance and gut microbiota composition. One-hundred-fiftyday-old chicks were randomly divided into three treatment groups with
five replicates/group as (i) Control diets (CON); (ii) Control diets + 0.01%
w/v enramycin (antibiotic growth promoter, AB); (iii) Control diets + 3%
w/v blend of garlic, peppermint, cinnamon, black cumin, and green tea
(phytogenic feed additives, PFA). Non-significant differences for body
weight gain and feed intake (p>0.05) were found between AB and PFA
groups. Quantitative bacterial analysis of chicken gut revealed
supplementation of PFA significantly increased (p<0.05) beneficial
bacterial (Lactobacillus spp. and Enterococcus spp.) and reduced
(p<0.05) pathogenic bacterial (E. coli and Campylobacter spp.) population
versus AB and CON group. Overall, statistical profiling of gut bacteria
depicted numerically increased beneficial bacteria in PFA group (79%)
followed by AB (72%) and CON (65%) in chicken gut. In conclusion, due
to increased animal performance and maintained balanced gut microflora
tested phytogenic feed additives of this study might be regarded as
potential alternatives to existing antibiotics in poultry for better food
animal production
ZUBIA RASHID, ZULFIQAR ALI MIRANI, SITWAT ZEHRA, SYED MUDDASSAR HUSSAIN GILANI, ARIF ALI CHISHTI, ABID AZHAR, SADDIA GALANI. (2019) Dietary inclusion of phytogenic feed additives (PFA) as an alternative to in-feed antibiotics modulating gut microbial dynamics in broiler chicken, Biologia – Journal of Biological Society of Pakistan, Volume 65 (II), Issue 2.
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