| Autor: |
Cruvinel LB; Escola de Veterinária e Zootecnia - EVZ, Universidade Federal de Goiás - UFG, Campus Samambaia, Goiânia, GO, Brasil., Nicaretta JE; Escola de Veterinária e Zootecnia - EVZ, Universidade Federal de Goiás - UFG, Campus Samambaia, Goiânia, GO, Brasil., Bastos TSA; Escola de Veterinária e Zootecnia - EVZ, Universidade Federal de Goiás - UFG, Campus Samambaia, Goiânia, GO, Brasil., Couto LFM; Escola de Veterinária e Zootecnia - EVZ, Universidade Federal de Goiás - UFG, Campus Samambaia, Goiânia, GO, Brasil., Santos JBD; Escola de Veterinária e Zootecnia - EVZ, Universidade Federal de Goiás - UFG, Campus Samambaia, Goiânia, GO, Brasil., Zapa DMB; Escola de Veterinária e Zootecnia - EVZ, Universidade Federal de Goiás - UFG, Campus Samambaia, Goiânia, GO, Brasil., Cavalcante ASA; Escola de Veterinária e Zootecnia - EVZ, Universidade Federal de Goiás - UFG, Campus Samambaia, Goiânia, GO, Brasil., Cruz BC; Faculdade de Ciências Agrárias e Veterinárias - FCAV, Universidade Estadual Paulista - UNESP, Jaboticabal, SP, Brasil., Borges DGL; Universidade Federal do Mato Grosso do Sul - UFMS, Campo Grande, MS, Brasil., Borges FA; Universidade Federal do Mato Grosso do Sul - UFMS, Campo Grande, MS, Brasil., Soares VE; Universidade Brasil, Campus de Descalvado, São Paulo, SP, Brasil., Lopes WDZ; Escola de Veterinária e Zootecnia - EVZ, Universidade Federal de Goiás - UFG, Campus Samambaia, Goiânia, GO, Brasil.; Instituto de Patologia Tropical e Saúde Pública - IPTSP, Universidade Federal de Goiás - UFG, Goiânia, GO, Brasil. |
| Abstrakt: |
This study aimed to identify the frequency of occurrence of Eimeria species in Holstein (taurine dairy cattle) and Nelore (zebu beef cattle) on 12 farms in the state of Goiás, Brazil. A total of 2,601 animals were evaluated, and the cattle were divided into the following age-group categories: up to three months old, four to eight months old, nine to 16 months old and cows. Fecal samples were collected directly from the rectum of all animals. None of the cattle presented any clinical signs of eimeriosis during the survey. From the results obtained, it could be concluded that higher rates of infection by Eimeria spp. were observed in Holstein cattle between the 1st and 16 th months of age and in Nelore cattle between the 1st and 8th months of age. Twelve and nine Eimeria species were diagnosed in Holstein and Nelore cattle, respectively. However, Eimeria zuernii was more prevalent in animals up to three months old, while Eimeria bovis was more common in the remaining categories (cattle aged four months and over). Future studies on the epidemiology and/or seasonality of infection by Eimeria species in cattle, from birth onwards, are needed in order to better understand the dynamics of E. zuernii and E. bovis occurrences, especially in cattle under three months of age. |
