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Provedor de dados:  Ciência Rural
País:  Brazil
Título:  Relationship between clinical and postmortem evaluation in repeat breeder beef cows
Autores:  Ferreira,Rogério
Oliveira,João Francisco Coelho de
Antoniazzi,Alfredo Quites
Pimentel,Cláudio Alves
Moraes,José Carlos Ferrugem
Henkes,Luiz Ernani
Gonçalves,Paulo Bayard Dias
Data:  2008-08-01
Ano:  2008
Palavras-chave:  Repeat breeder
Beef cows
Resumo:  The objective of this study was to investigate the causes of the repeat breeder syndrome comparing clinical signs and postmortem findings in beef cows. The identification of factors affecting the reproductive tract can support decisions as to whether treatment of repeat breeder cows is justifiable than culling. Since all animals were submitted to clinical examination before being slaughtered, this study has a differential approach when compared with others, where genital tracts from abattoir were examined. In this study, 130 crossbred cows and heifers that have failed to conceive after three or more services were identified, submitted to a clinical examination and blood collection for karyotyping and sent to an abattoir. postmortem examinations included macroscopic evaluation of the genital tracts, bacteriology and histopathology of the uterus. Uterine alterations were predominant followed by oviduct and ovarian pathologies. Histopathological examination was more sensitive as a diagnostic tool than clinical examination. Repeat breeder cows had a predominance of uterine abnormalities (95%), such as inflammatory (42.9%) and degenerative (59.7%) conditions. Oviduct abnormalities were found in 29.8 % of animals. Furthermore, 1 out 10 karyotyped cows showed aneuploidy. Thus, this study stressed the importance of laboratory exams in the diagnosis of the causes of infertility of repeat breeder cows.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Editor:  Universidade Federal de Santa Maria
Relação:  10.1590/S0103-84782008000400023
Formato:  text/html
Fonte:  Ciência Rural v.38 n.4 2008
Direitos:  info:eu-repo/semantics/openAccess

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