Effects of tannic acid extract on performance and intestinal health of broiler chickens following coccidiosis vaccination and/or a mixed-species Eimeria challenge

Poultry Science
R M TondaM J Poss

Abstract

Two experiments were conducted to investigate the effects of tannic acid extract (TAE) formulations on the performance and intestinal health of male Cobb × Cobb 500 broilers exposed to coccidiosis. In the first experiment, 320 broiler chicks were randomly assigned to 5 treatments with 8 replicates. Treatments included non-medicated, uninfected (NC); non-medicated, infected (PC); salinomycin (SAL, 66 mg/kg); tannic acid (TA, 0.5 g/kg) and TAE (TAE, 0.5 g/kg). On d 14, all groups (except NC) were orally inoculated with Eimeria acervulina, E. maxima and E. tenella oocysts. Intestinal lesion scores, fecal oocyst counts (OPG) and performance were evaluated on d 20. The PC had greater lesions and higher FCR than infected, supplemented groups. Only TAE reduced OPG compared to PC (P < 0.05). In the second experiment, 3,000 broiler chicks were vaccinated on day of hatch with live coccidial oocysts, then randomly assigned to 5 treatments with 15 replicates. Treatments included non-medicated (CNT); salinomycin (SAL, 66 mg/kg); robenidine (ROB, 33 mg/kg); TAE (0.5 g/kg) and TAE with Bacillus coagulans (TAE+BC, 0.5 g/kg). On d 29, a subset of pens (n = 20) were challenged with a mixed Eimeria spp. oral inoculum; performance, lesions and OPG...Continue Reading

Citations

Aug 9, 2019·Future Medicinal Chemistry·Bhawana SinghAbhay R Satoskar
Jan 16, 2021·Animals : an Open Access Journal From MDPI·Mohammed M QaidRiyadh S Aljumaah
Dec 18, 2020·Animals : an Open Access Journal From MDPI·Janghan Choi, Woo Kyun Kim
Aug 8, 2021·Animals : an Open Access Journal From MDPI·Wen-Yang ChuangTzu-Tai Lee

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