Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/57173
Título: Records of performance and sanitary status from a dairy cattle herd in southern Brazil
Título(s) alternativo(s): Registros de desempenho e de status sanitário de um rebanho bovino leiteiro no Sul do Brasil
Palavras-chave: Dairy cattle
Herd health and management
Reproductive efficiency
Diseases of cattle
Mastitis
Cattle losses
Culling rates
Fetal losses
Abortion
Bovinos leiteiros
Saúde e manejo de rebanho
Desempenho reprodutivo
Doenças de bovinos
Mastites
Causas de morte em bovinos
Descartes
Abate sanitário
Perdas fetais
Aborto
Data do documento: Jan-2011
Editor: Colégio Brasileiro de Patologia Animal - CBPA. Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
Citação: CRUZ, C. E. F. et al. Records of performance and sanitary status from a dairy cattle herd in southern Brazil. Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 31, n. 1, jan. 2011.
Resumo: Over the last decades, the emphasis on the health of dairy cows has changed from an individual to a herd level. In this scenario, the role played by the recording system and its interpretation by veterinarians has gained primordial importance. The records of productive and reproductive performance and of sanitary status from a southern Brazilian dairy cattle herd have been presented and discussed. The period of study was 2000-2009. Mean values per lactation period were 349D 8436M 290F 275P 201SCS (D: days in lactation, M: kg of milk yield, F: kg of fat, P: kg of protein and SCS: somatic cell score in 1000 cells/ml of milk). Major indexes of reproductive efficiency included age at first calving (31 months), services per conception (2.1), intercalving interval (428 days), calving to conception interval (146 days), mean annual rates of parturitions (76.2%), fetal losses (9.8-19.0%), and stillbirths (3.6%), apart of voluntary waiting period (94 days). Main information on sanitary status of the herd was associated with the mean prevalence of common disorders of dairy cattle such as anaplasmosis (29.8%), mastitis (27.8%), digital diseases (26.3%), ovarian cysts (21.3%), placental retention (19.7%), postpartum uterine infections (10.6%), and calf diarrhea (23.7%) and pneumonia (16.8%), among others. In addition, culling reasons (low reproductive performance [56.3%] and udder/mastitis problems [33.6%]), causes of cattle deaths (anaplasmosis [16.4%] and leukosis [11.4]), and the impact of cattle diseases such as tuberculosis, leukosis, and neosporosis on the herd have also been presented and succinctly discussed. Numbers between brackets represent rates accumulated in the 10-year period.
URI: http://repositorio.ufla.br/jspui/handle/1/57173
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