Correlation between intestinal health and coccidiosis prevalence in broilers in Brazilian agroindustries

Gazoni, Fabio L.; Adorno, F.C.; Matte, Fabrizio; Alves, Adair Junior; Campagnoni, Igor Dias Praxedes; Urbano, T.; Zampar, Aline; Boiago, Marcel Manente; Silva, Aleksandro S. Da

doi:10.1016/j.parint.2019.102027

Cited by 13 publications

(14 citation statements)

References 4 publications

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“… Chapman et al (2016) reported that sampling built-up litter allows the evaluation of accumulated oocysts across several grow-outs and indirectly verifies the conditions of the litter to know whether the parasite sporulation process is taking place ( Venkateswara et al, 2015 ). In this work at the time of sampling, it was not possible to sacrifice birds to identify scores of intestinal lesions by Eimerias spp , as in other reported studies ( Gharekhanietal, 2014 ; Belal, 2017 ; Gazoni et al, 2020 ) to be able to complement the OPG found in litter with the intestinal health of the birds. Of the total litter sampled, 92.8% were positive for Eimeria spp.…”

Section: Discussionmentioning

confidence: 99%

Survey of coccidia on commercial broiler farms in Colombia: frequency of Eimeria species, anticoccidial sensitivity, and histopathology

et al. 2021

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Avian coccidiosis continues to be one of the costliest diseases of commercial poultry. Understanding the epidemiology of Eimeria species in poultry flocks and the resistance profile to common anticoccidials is important to design effective disease prevention and control strategies. This study examined litter samples to estimate the prevalence and distribution of Eimeria species among broiler farms in 4 geographic regions of Colombia. A total of 245 litter samples were collected from 194 broiler farms across representative regions of poultry production between March and August 2019. The litter samples were processed for oocysts enumeration and speciation after sporulation. End-point polymerase chain reaction (PCR) analysis was conducted to confirm the presence of Eimeria species. Anticoccidial sensitivity was determined with 160 Ross AP males in 5 treatment groups: noninfected, nonmedicated control (NNC ), infected, nonmedicated control (INC), infected salinomycin treated (SAL, dose: 66 ppm) , infected diclazuril treated (DIC, dose: 1 ppm), and infected methylbenzocuate-Clopidol treated (MET.CLO, dose: 100 ppm), All birds were orally inoculated with 1 × 10 6 sporulated oocysts using a 1 mL syringe, except for the NNC- group who received 1ml of water . Eimeria spp. were found in 236 (96.3%) out of 245 individual houses, representing 180 (92.8%) out of 194 farms. Eimeria acervulina was the most prevalent species (35.0%) followed by Eimeria tenella (30.9%), Eimeria maxima (20.4%), and other Eimeria spp. (13.6%). However, mixed species infections were common, with the most prevalent combination being mixtures of E. acervulina, E. maxima, E. tenella, and other species in 31.4% of the Eimeria -positive samples. PCR analysis identified E. acervulina, E. maxima, E. tenella, Eimeria necatrix, Eimeria mitis, and Eimeria praecox with variable prevalence across farms and regions. Anticoccidial sensitivity testing of strains of Eimeria isolated from 1 region, no treatment difference ( P > 0.05) was observed in final weight (BW), weight gain (BWG) or feed conversion (FCR). For the global resistance index ( GI ) classified SAL and MET.CLO as good efficacy (85.79 and 85.49, respectively) and DIC as limited efficacy (74.52%). These results demonstrate the ubiquitous nature of Eimeria spp. and identifies the current state of sensitivity to commonly used anticoccidials in a region of poultry importance for Colombia.

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Section: Discussionmentioning

confidence: 99%

Survey of coccidia on commercial broiler farms in Colombia: frequency of Eimeria species, anticoccidial sensitivity, and histopathology

et al. 2021

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“…canadensis, E. cylindrica, E. ellipsoidalis, E. illinoisensis, E. pellita, E. subspherica, E. wyomingensis y E. zuernii, siendo E. zurnii y E. bovis, las dos especies que poseen el mayor grado de patogenicidad, por lo cual producen una alta morbilidad y mortalidad que se asocian a diarreas sanguinolentas y mucosas (11,16).…”

Section: Alabamensis E Auburnensis E Bovis E Brasiliensis E Bukidnone...unclassified

Prevalence and risk factors associated with liver fluke Fasciola hepatica in cattle and sheep in three municipalities in the Colombian Northeastern Mountains

Pinilla

Muñoz

Delgado

2020

Veterinary Parasitology: Regional Studies and Reports

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“…A imunização em frangos de corte contra a infecção de coccidiose pode ser provocada pela ingestão de oocistos do coccídeo do gênero Eimeria (Gazoni et al, 2020) e vacinas comerciais contra Eimeria estão disponíveis desde a década de 50 (Blake et al, 2015). No entanto, nos últimos anos, a indústria avícola baseou-se principalmente em drogas anticoccidiais e produtos químicos sintéticos (Peek & Landman, 2011), para controlar esta doença parasitária.…”

Section: Introductionunclassified

Eficácia da Vacinação contra Eimeria spp. em Aves de corte

Ferreira

Cassiano

Beretta

et al. 2022

RSD

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A Eimeriose representa um considerável desafio enfrentado pela indústria avícola global em decorrência dos prejuízos que acarreta. Três espécies de Eimeria em galinhas, no caso, E. acervulina, E. máxima e a E. tenella tem potencial para afetar a ocorrência e extensão da resistência a medicamentos anticoccidianos e às futuras vacinas. Desta forma, fica claro que a vacinação contra eimeriose aviária tem papel importante na manutenção da biossegurança e produtividade em criações de aves, pois além de propiciar a imunização dos animais auxilia no aumento da eficiência terapêutica dos fármacos anticoccídianos. Neste estudo, nós investigamos a eficácia da vacinação contra a eimeriose em aves de corte. No total, foram compilados 589 artigos, em bases de dados de pesquisa e publicações científicas. Como filtro para evitar a duplicidade entre os trabalhos, foram obtidos 62 artigos. Destes, em apenas cinco observamos um grau de recomendação altíssima do uso da vacinação de DNA, que foi considerada mais eficaz na prevenção da eimeriose, com menor grau de efeitos colaterais.

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Correlation between intestinal health and coccidiosis prevalence in broilers in Brazilian agroindustries

Cited by 13 publications

References 4 publications

Survey of coccidia on commercial broiler farms in Colombia: frequency of Eimeria species, anticoccidial sensitivity, and histopathology

Survey of coccidia on commercial broiler farms in Colombia: frequency of Eimeria species, anticoccidial sensitivity, and histopathology

Prevalence and risk factors associated with liver fluke Fasciola hepatica in cattle and sheep in three municipalities in the Colombian Northeastern Mountains

Eficácia da Vacinação contra Eimeria spp. em Aves de corte

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