4.5 Article

Efficacy of a Dietary Polyherbal Formula on the Performance and Gut Health in Broiler Chicks after Experimental Infection with Eimeria spp.

Journal

PATHOGENS
Volume 10, Issue 5, Pages -

Publisher

MDPI
DOI: 10.3390/pathogens10050524

Keywords

broiler chick; coccidiosis; challenge; performance; intestinal heath; meat antioxidative capacity

Categories

Funding

  1. European Union (European Regional Development Fund) in context Research-Create-Innovate within the Operational Program (Competitiveness, Entrepreneurship, and Innovation (EPAnEK) of the NSRF 2014-2020 [T1EDK-03856]
  2. Ayurvet Limited [93228]

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The study found that the addition of a polyherbal formula significantly improved the growth performance and intestinal health of challenged birds, reducing bloody diarrhea, lowering oocyst counts, decreasing intestinal lesions, and positively impacting the intestinal microbiota. Compared to salinomycin feed, the herbal formula performed well in promoting chicken growth, reducing pathogen numbers, and improving antioxidant capacity.
One-hundred and fifty, one-day-old Ross-308 female chicks were randomly allocated to five equal treatments: NCONTR negative control-not challenged; PCONTR positive control-challenged; PHERB1 and PHERB2 diets were supplemented with phytogenic formula (1 and 2 g/kg feed, respectively)-challenged; PSALIN diet was supplemented with salinomycin (60 mg/kg feed)-challenged. Challenge was made by oral inoculation with 3.5 x 10(4) E. acervulina, 7.0 x 10(3) E. maxima and 5.0 x 10(3) E. tenella oocysts, at 14 days of age. One week post inoculation, bloody diarrhea, oocysts numbers, and intestinal lesions were evaluated, along with intestinal microbiota, viscosity, and pH of digesta, and histopathology. PHERB2 had a comparable (p <= 0.001) growth performance and feed conversion ratio to PSALIN. PHERB1 and PHERB2 had similar (p <= 0.001) oocyst counts to PSALIN and lower than PCONTROL. PHERB2 and PSALIN had lower (p <= 0.001) jejunal, ileal, and cecal lesion scores compared to PCONTR. PHERB1 and PHERB2 had higher (p <= 0.001) jejunal and cecal lactobacilli and lower (p <= 0.001) coliform counts compared to other treatments. PCONTR had lower (p <= 0.001) jejunum villus height, height to crypt ratio, and villus goblet cells. Breast and thigh meat resistance to oxidation was improved (p <= 0.001) in PHERB1 and PHERB2 compared to the PCONTR. The polyherbal formula exerted a substantial improvement on growth performance and intestinal health of the Eimeria-challenged birds.

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