Enhanced modulation of gut microbial dynamics affecting body weight in birds triggered by natural growth promoters administered in conventional feed.
作者： Zubia Rashid , Zulfiqar Ali Mirani , Sitwat Zehra , Syed Muddassar Hussain Gilani , Asma Ashraf
DOI: 10.1016/J.SJBS.2020.06.027
关键词:
摘要: Abstract This study explored the effects of natural growth promoters (phytogenic feed additives and organic acids) on animal performance, carcass characteristics, blood parameters, gut microflora composition, microbe–host interactions in broiler chickens over a 42-day feeding period. Two-hundred-fifty-day-old chicks were randomly assigned to one five treatments: (i) control diets (CON); (ii) diets + 40 g/tons antibiotic promoter (AB); (iii) diets + 3 kg/tons acids (ORG); (iv) phytogenic (PHY); (v) acids + phytogenic additive combination (COM). A non-significant differences (p > 0.05) observed performance among treatments at 21 days age; however, gradually increasing body weight gain reduced conversion ratio 42 days versus group. Biochemical indices except for decreased cholesterol (p
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