Importância de Cryptosporidium spp. como causa de diarréia em bezerros
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Data
2008-10-01
Autores
Feitosa, Francisco Leydson Formiga [UNESP]
Shimamura, Graziele M. [UNESP]
Roberto, T. [UNESP]
Mendes, Luiz Claudio Nogueira [UNESP]
Peiró, Juliana Regina [UNESP]
Féres, Flávia C. [UNESP]
Bovino, Fernanda [UNESP]
Perri, Silvia Helena Venturoli [UNESP]
Meireles, Marcelo Vasconcelos [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Colégio Brasileiro de Patologia Animal - CBPA
Resumo
Avaliou-se a presença de oocistos de Cryptosporidium spp. em amostras de fezes de 14 bezerros e de suas mães até a oitava semana pós parição. A maior taxa de excreção de oocistos foi verificada em bezerros com sete dias de idade. Das vacas, 42,8% foram positivas para Cryptosporidium no período pós-parto. em outra etapa deste estudo, foram acompanhados 57 bezerros positivos para Cryptosporidium, com até 30 dias de idade, provenientes de 32 propriedades leiteiras, e estudouse o grau de eliminação dos oocistos com a possível ocorrência de diarréia. em todos os animais positivos para Cryptosporidium foi pesquisada a presença de bactérias enteropatogênicas, vírus (Rotavirus e Coronavirus) e protozoários (Eimeria spp.).
The aim of this research was to evaluate the shedding of Cryptosporidium spp. oocysts in fecal samples from 14 calves from one dairy farm, from birth until 60 days old and from cows until eight weeks after parturition. The higher percentage of oocysts excreted was observed in 7-day-old calves. In the post-partum period 43.7% of cows were positive for Cryptosporidium oocysts. Further analyses were accomplished in 57 calves from another 32 milk farms, previously known as positive for Cryptosporidium, through oocysts fecal screening and clinical signs analyses until calves were 30 days old. Fecal samples from all animals that presented diarrhea were screened for the presence of bacteria, virus (Rotavirus and Coronavirus ) and protozoa (Eimeria spp.).
The aim of this research was to evaluate the shedding of Cryptosporidium spp. oocysts in fecal samples from 14 calves from one dairy farm, from birth until 60 days old and from cows until eight weeks after parturition. The higher percentage of oocysts excreted was observed in 7-day-old calves. In the post-partum period 43.7% of cows were positive for Cryptosporidium oocysts. Further analyses were accomplished in 57 calves from another 32 milk farms, previously known as positive for Cryptosporidium, through oocysts fecal screening and clinical signs analyses until calves were 30 days old. Fecal samples from all animals that presented diarrhea were screened for the presence of bacteria, virus (Rotavirus and Coronavirus ) and protozoa (Eimeria spp.).
Descrição
Palavras-chave
Bezerros, vacas, criptosporidiose, Cryptosporidium spp, Calves, cows, cryptosporidiosis, Cryptosporidium spp
Como citar
Pesquisa Veterinária Brasileira. Colégio Brasileiro de Patologia Animal - CBPA, v. 28, n. 10, p. 452-456, 2008.