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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/50619
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dc.creatorEduardo Robson Duartept_BR
dc.creatorFlávia Oliveira Abrãopt_BR
dc.creatorIzabella Carolina de Oliveira Ribeiropt_BR
dc.creatorEdvaldo Alves Vieirapt_BR
dc.creatorAna Carolina Araújo Nigript_BR
dc.creatorKellerson Luiz Silvapt_BR
dc.creatorGercino Ferreira Virgínio Juniorpt_BR
dc.creatorSilene Maria Prates Barretopt_BR
dc.creatorLuciana Castro Geraseevpt_BR
dc.date.accessioned2023-03-03T11:07:23Z-
dc.date.available2023-03-03T11:07:23Z-
dc.date.issued2018-10-23-
dc.citation.volume46pt_BR
dc.citation.issue1pt_BR
dc.citation.spage1457pt_BR
dc.citation.epage1461pt_BR
dc.identifier.doihttps://doi.org/10.1080/09712119.2018.1530676pt_BR
dc.identifier.issn0974-1844pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/50619-
dc.description.resumoThe purpose of this study was to quantify, identify and compare the protozoa populations in the rumen of different ages of beef cattle raised in tropical pastures during the dry season. We sampled the ruminal fluid of 36 steers, 34 cows and 30 calves, all crossbred Nelore. The ruminal fluid was diluted in 10% formaldehyde solution and decimal dilutions were prepared in saline solution to quantify small, medium and large protozoa in Sedgewick Rafter chamber. A total of 135,800 protozoa were evaluated in an optical microscope using Lugol’s iodine coloration and the genera were classified according to the morphological characteristics. Total protozoa populations were significantly lower in calf samples. The average of small protozoa population was higher than that of other protozoa groups while the large ciliate population was lower. Protozoa belonging to 17 different genera were identified, showing diversity in this ecosystem. Charonina spp. was the most frequent for both bovine groups. Entodinium spp. was more prevalent in adult cattle and while Buetschilia spp. was more prevalent in calves. In this study, a considerable population of ruminal ciliates presenting high diversity was observed in cattle raised on tropical lignified pastures and their genus profile varied according to the ages of the animals.pt_BR
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológicopt_BR
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Geraispt_BR
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorpt_BR
dc.description.sponsorshipOutra Agênciapt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentICA - INSTITUTO DE CIÊNCIAS AGRÁRIASpt_BR
dc.publisher.initialsUFMGpt_BR
dc.rightsAcesso Abertopt_BR
dc.subject.otherProtozoologia veterináriapt_BR
dc.subject.otherBovino de cortept_BR
dc.subject.otherNelore (Bovino)pt_BR
dc.subject.otherRúmen - Microbiologiapt_BR
dc.subject.otherPastagenspt_BR
dc.titleRumen protozoa of different ages of beef cattle raised in tropical pastures during the dry seasonpt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.tandfonline.com/doi/full/10.1080/09712119.2018.1530676pt_BR
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