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Marcos Pezzi Guimarãeshttp://lattes.cnpq.br/3529445700106767Elias Jorge Facury FilhoRicardo Nascimento AraújoMarcelo Vidigal CaliariJackson Victor de AraújoMarcelo Andrade MotaRonize Andréia FerreiraRodolfo Cordeiro Guinchettihttp://lattes.cnpq.br/2286016514805804Maria do Socorro Veloso Leite Ferraz da Costa2021-04-08T15:00:49Z2021-04-08T15:00:49Z2012-12-14http://hdl.handle.net/1843/35593No período de novembro de 2007 a setembro de 2009, dois grupos de novilhas foram analisados quanto a carga de endo e ectoparasitos, sendo eles: Grupo A - 32 novilhas ¼ Holandês-¾ Gir; Grupo B - 8 novilhas ½ sangue Holandês/Gir. As novilhas foram mantidas sobre o mesmo pastejo em uma área de Brachiaria brizanta e mensalmente reunidas para pesagem, contagens de ovos (OPG) e oocistos (OOPG) por grama de fezes, coprocultura, contagens de partenógenas e teleóginas de Rhipicephalus (Boophilus) microplus (carrapatos), adultos de Haematobia irritans (mosca do chifre) e nódulos causados por larvas de Dermatobia hominis (berne). A região experimental é caracterizada por um período chuvoso (outubro a março) e um período seco (abril a setembro) com temperatura média variando de 14 a 33°C. A precipitação média no período chuvoso foi de 111,9 e 206,7 mm e no período seco de 10,26 e 21,08 mm nos anos de 2007/2008 e 2008/2009, respectivamente. A umidade relativa variou de 56 a 85%. O ganho de peso dos dois grupos foi estatisticamente semelhante (p>0,05), 136 Kg no grupo A e 147 Kg no grupo B. As contagens médias de OPG variaram de 13 a 584 e foram menores na época da seca. Não houve diferença estatística (p>0,05) entre os grupos e as larvas encontradas nas coproculturas foram Cooperia spp., Haemonchus spp., Oesophagostomum spp. e Trichostrongylus spp. com predominâncias de Haemonchus spp. seguido por Cooperia spp.. O número médio de oocistos encontrados nas contagens de OOPG variou de 750 a 21,9 sendo maiores nos meses chuvosos. Durante o período do estudo, os grupos A e B foram estatisticamente semelhantes (p>0,05), embora o grupo B tenha apresentado maiores contagens em três meses. Nenhum animal apresentou sintomatologia clínica, apesar da presença das espécies E. bovis e E. zuernii, consideradas patogênicas. Dentre as 10 espécies identificadas, as mais prevalentes foram E. auburnensis , E. bovis e E. ellipsoidalis. O número de ectoparasitos ao longo do experimento foi diferente entre os grupos, sendo que o grupo B apresentou significativamente maior carga parasitária que o grupo A (p<0,05). H. irritans foi o ectoparasito que apresentou maior infestação, atingindo níveis acima de 93 moscas por animal. As maiores médias de nódulos de D. hominis coincidiram com o aumento da temperatura e diminuição do índice pluviométrico e o maior pico de R. (B.) microplus ocorreu concomitante com ligeiro aumento da temperatura e do índice pluviométrico. Doze bolos fecais foram depositados mensalmente na pastagem durante o período de outubro de 2008 a setembro de 2009. Os gêneros de helmintos gastrintestinais encontrados no bolo fecal e pastagem foram: Cooperia spp., Haemonchus spp., Oesophagostomum spp. e Trichostrongylus spp.. As larvas de Cooperia spp. estiveram presentes na pastagem enquanto as larvas de Haemonchus spp foram mais frequentes no bolo fecal. Na análise dos bezerros traçadores, as principais espécies identificadas foram Haemonchus contortus e Cooperia punctata. As maiores recuperações de helmintos do intestino delgado e grosso ocorreram no final do período chuvoso e do seco e do abomaso no final e inicio do período chuvoso. Também foi realizado o levantamento parasitológico em 19 novilhas primíparas ¼ Holandês e ¾ Gir a partir da 24a semana antes do parto até a 13a semana após o parto. Semanalmente foram realizadas colheitas de fezes de cada animal para contagens de ovos (OPG) e oocistos (OOPG) por grama de fezes, coprocultura. As maiores médias das contagens de OPG foram observadas nas seguintes semanas do peri-parto: 28ª, 34ª , 36ª, 9ª e 12ª semana. Nas coproculturas foram identificadas larvas de Cooperia spp., Haemonchus spp., Oesophagostomum spp. e Trichostrongylus spp. e as larvas de Cooperia spp. e de Haemonchus spp. predominaram sobre os demais gêneros. Os oocistos de Eimeria estiveram presentes durante todo o período de estudo. As maiores médias das contagens de OOPG foram apresentadas nas seguintes semanas: 24ª, 25ª, 28ª, 35ª, 36ª, 3ª, 4ª e 7ª semana e foram identificadas dez espécies sendo as de maior frequência E. auburnensis, E. bovis, E. canadensis e E. cylindrica e a menos frequente foi a E. subspherica.From november 2007 to september 2009, two groups of heifers were analyzed for the load of endo and ectoparasites, as follows: group A – 32 heifers ¼ Holstein and ¾ Gir and group B – 8 heifers ½ Holstein –Gir. The heifers were kept on the same pasture, on a Brachiaria brizanta, and were monthly put together for weighing and counting of eggs (FEC) and oocysts (OOPC) per gram of feces, fecal culture, partenogenas engorged females of Rhipicephalus (Boophilus) microplus (tick), adults Haematobia irritans (horn fly) and nodules caused by larvae Dermtobia hominis (humam botfly). The experimental region is characterized by a rainy season (october to march) and a dry season (april to september) with the average temperature ranging from 14 to 33°C. The average rainfall in the rainy season was 11,9 and 206,7 mm in the years 2007/2008 and 2008/2009 respectively. The relative humidity varied from 56 to 85%. The gain of weight of the two groups was statistically similar (p>0,05), 136 kg in group A and 147 in group B. The average EPG counts ranged from 13 to 584 and were lower in the dry season. There was no statistical difference (p>0,05) between groups and the larvae found in fecal culture were Cooperia spp., Haemonchus spp., Oesophagostomum spp. and Trichostrongylus spp. with predominance of Haemonchus spp. followed by Cooperia spp.. The average number of oocysts found in OOPG countings ranged from 750 to 21,9 with higher level in the rainy season. In this period of study, groups A and B were statistically similar (p>0,05), while group B had shown higher countings in three months. None of the animals exhibited clinical symptons despite the presence of E. bovis and E. zuernii considered pathogenic. Among the 10 species identified, the most prevalent were E. auburnensis, E. bovis and E. ellipsoidalis. The number of ectoparasites during the experiment was different between groups, while group B showed significantly higher parasite load than group A (p>0,05), H. irritans presented the highest ectoparasite infestation reaching levels above 93 flies per animal. The highest average of nodules D. hominis coincided with increase of temperature and decrease of rainfall and the largest peak R. (B.) microplus occurred with concomitant slight increase of the temperature and rainfall. Twelve dung pats were deposited monthly in the pasture during the period from october 2008 to september 2009. The genera of gastrointestinal helminthes found in feces and pasture were Cooperia spp., Haemonchus spp., Oesophagostomum spp. and Trichostrongylus spp.. The larvae of Cooperia spp.were present in the pasture while the larvae of Haemonchus spp. were more common in feces. In tracer calves analysis the main identified species were Haemonchus contortus and Cooperia punctata.The highest recoveries of helminthes of small and large intestine occurred at the end of the rainy and the dry seasons and abomasum at the beginninig and the end of the rainy season. Parasitological survey was carried out on 19 primiprous heifers ¼ Holstein and ¾ Gir from 24th week pregnancy up to the 13th week after parturition. Eggs (FEC) and oocysts (OOPC) per gram of feces, as well as fecal culture were counted weekly.The highest mean EPG counting was observed in the following weeks before and after parturition: 28th, 34th, 36th, 9th and 12th weeks. Cooperia spp.and Haemonchus spp. Oesophagostomum spp. and Trichostrongylus spp larvae could be identified during the fecal cultures period and Cooperia spp.and Haemonchus spp. predominated over other genera. The oocysts of Eimeria were present throughout the study period. The highest mean scores OOPG were presented in the following weeks of pregnancy and post parturition: 24th, 25th, 28th, 35th, 36th, 3rd, 4th and 7th weeks and identified 10 species where E. auburnensis, E. bovis, E canadensis and E. cylindrica were the most frequent and E. subspherica the less frequentCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível SuperiorporUniversidade Federal de Minas GeraisPrograma de Pós-Graduação em ParasitologiaUFMGBrasilICB - INSTITUTO DE CIÊNCIAS BIOLOGICAShttp://creativecommons.org/licenses/by-nc-nd/3.0/pt/info:eu-repo/semantics/openAccessParasitologiaEimeriaHaemonchusOesophagostomumTrichostrongylusEndoparasitoOPGCooperia spp.Haemonchus spp.Oesophagostomum spp.Trichostrongylus spp.OOPGEimeria spp.EctoparasitosDermatobia hominisRhipicephalus (Boophilus) microplusHaematobia irritansBolo fecalBezerros traçadoresPeri-partoAvaliação das infecções parasitárias de bovinos em uma fazenda na região do Vale do Mucuri, MGinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisreponame:Repositório Institucional da UFMGinstname:Universidade Federal de Minas Gerais (UFMG)instacron:UFMGORIGINALTese Maria do Socorro.pdfTese Maria do Socorro.pdfapplication/pdf2138845https://repositorio.ufmg.br/bitstream/1843/35593/1/Tese%20Maria%20do%20Socorro.pdf2f6f1033b62892ee3ef84004b708b6fbMD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8811https://repositorio.ufmg.br/bitstream/1843/35593/2/license_rdfcfd6801dba008cb6adbd9838b81582abMD52LICENSElicense.txtlicense.txttext/plain; charset=utf-82119https://repositorio.ufmg.br/bitstream/1843/35593/3/license.txt34badce4be7e31e3adb4575ae96af679MD531843/355932021-04-08 12:00:49.163oai:repositorio.ufmg.br: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Repositório InstitucionalPUBhttps://repositorio.ufmg.br/oaiopendoar:2021-04-08T15:00:49Repositório Institucional da UFMG - Universidade Federal de Minas Gerais (UFMG)false
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