Main causes of mortality in Holstein calves on rural properties in the Bragantina region

This study was conducted on two dairy farms that breed Holstein cattle in the municipality of Bragança Paulista, São Paulo. The study included 11 female calves that were one to three months old. The animals were autopsied. Tissue samples of affected organs were collected for histopathological and mi...

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Main Authors: Daniela Moraes de Olivera, Amilton Cesar dos Santos, Franceliusa Delys de Oliveira, Bruno Machado Bertassoli, Maria Angélica Machado Arroyo, Antônio Chaves de Assis Neto, Josemara Neves Cavalcanti
Format: Article
Language:English
Published: Universidade Federal de Santa Catarina 2012-06-01
Series:Biotemas
Subjects:
Online Access:http://www.biotemas.ufsc.br/volumes/pdf/volume252/171a179.pdf
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author Daniela Moraes de Olivera
Amilton Cesar dos Santos
Franceliusa Delys de Oliveira
Bruno Machado Bertassoli
Maria Angélica Machado Arroyo
Antônio Chaves de Assis Neto
Josemara Neves Cavalcanti
author_facet Daniela Moraes de Olivera
Amilton Cesar dos Santos
Franceliusa Delys de Oliveira
Bruno Machado Bertassoli
Maria Angélica Machado Arroyo
Antônio Chaves de Assis Neto
Josemara Neves Cavalcanti
author_sort Daniela Moraes de Olivera
collection DOAJ
description This study was conducted on two dairy farms that breed Holstein cattle in the municipality of Bragança Paulista, São Paulo. The study included 11 female calves that were one to three months old. The animals were autopsied. Tissue samples of affected organs were collected for histopathological and microbiological examination and blood was collected for serological tests. The aim of this study was to identify the main causes of death in calves of dairy cattle from the Bragantina region. Among the causes, the frequency of dysentery and respiratory diseases was similar. The samples evalulated identified a higher frequency of macroscopic and microscopic lung lesions when compared to intestinal lesions. The etiological agents associated with the diseases found were Salmonella sp., Escherichia coli, Clostridium perfringens, Pasteurella spp., syncytial virus and coronavirus, which affect the respiratory and gastrointestinal systems and can lead to septicemia and death.
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spelling doaj.art-319f9391aedd436aaabbbd40172915342022-12-22T00:01:56ZengUniversidade Federal de Santa CatarinaBiotemas0103-16432012-06-01252171179Main causes of mortality in Holstein calves on rural properties in the Bragantina regionDaniela Moraes de OliveraAmilton Cesar dos SantosFranceliusa Delys de OliveiraBruno Machado BertassoliMaria Angélica Machado ArroyoAntônio Chaves de Assis NetoJosemara Neves CavalcantiThis study was conducted on two dairy farms that breed Holstein cattle in the municipality of Bragança Paulista, São Paulo. The study included 11 female calves that were one to three months old. The animals were autopsied. Tissue samples of affected organs were collected for histopathological and microbiological examination and blood was collected for serological tests. The aim of this study was to identify the main causes of death in calves of dairy cattle from the Bragantina region. Among the causes, the frequency of dysentery and respiratory diseases was similar. The samples evalulated identified a higher frequency of macroscopic and microscopic lung lesions when compared to intestinal lesions. The etiological agents associated with the diseases found were Salmonella sp., Escherichia coli, Clostridium perfringens, Pasteurella spp., syncytial virus and coronavirus, which affect the respiratory and gastrointestinal systems and can lead to septicemia and death.http://www.biotemas.ufsc.br/volumes/pdf/volume252/171a179.pdfCalvesEnteritisNecropsy
spellingShingle Daniela Moraes de Olivera
Amilton Cesar dos Santos
Franceliusa Delys de Oliveira
Bruno Machado Bertassoli
Maria Angélica Machado Arroyo
Antônio Chaves de Assis Neto
Josemara Neves Cavalcanti
Main causes of mortality in Holstein calves on rural properties in the Bragantina region
Biotemas
Calves
Enteritis
Necropsy
title Main causes of mortality in Holstein calves on rural properties in the Bragantina region
title_full Main causes of mortality in Holstein calves on rural properties in the Bragantina region
title_fullStr Main causes of mortality in Holstein calves on rural properties in the Bragantina region
title_full_unstemmed Main causes of mortality in Holstein calves on rural properties in the Bragantina region
title_short Main causes of mortality in Holstein calves on rural properties in the Bragantina region
title_sort main causes of mortality in holstein calves on rural properties in the bragantina region
topic Calves
Enteritis
Necropsy
url http://www.biotemas.ufsc.br/volumes/pdf/volume252/171a179.pdf
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