Doenças de bovinos no Sul do Brasil: 6.706 casos

Abstract

The diseases affecting cattle in southern Brazil were studied through a review of the necropsy reports filed at the Laboratório de Patologia Veterinária of the Universidade Federal de Santa Maria (LPV-UFSM), Rio Grande do Sul, and pertaining to the examination of 6.076 cattle during 1964-2008. Of those exams 29.9% were necropsies performed at the LPV-UFSM and 79.1% were mailed-in organ fragments from necropsies performed at the field by veterinary practitioners. Autolysis and non-representative sampling o mailed in organs were the main reasons for non-conclusive diagnosis. Poisoning by Senecio spp. was the main cause of death in cattle in this study and poisonous plants together with toxi-infections accounted for 22.8% of the cases with conclusive diagnosis. Inflammatory diseases together with parasitic diseases accounted for more than 30% of cattle diseases and babesiosis and anaplasmosis were the main diseases in this category. Other categories were distributed in the following order: neoplasms and tumor-like lesions (13.87%), diseases caused by physical agents (2.7%), metabolic and nutritional diseases (2.46%), circulatory disturbances (1.4%), degenerative diseases (1.1%), developmental disorders (0.54%), iatrogenic diseases and sundry lesions. The high prevalence of tumors in cattle in this study was attributed to the chronic ingestion of Pteridium aquilinum, a common toxicosis in the region. The main diseases in cattle from the studied region are related to environmental factors associated to the predominantly husbandry practices adopted in the region.INDEX TERMS: Diseases of cattle, causes of death, retrospective study, epidemiology, pathology.

Causas de morte em vacas leiteiras no Rio Grande do Sul

“…O Rio Grande do Sul está entre os três maiores estados produtores de leite do Brasil, o que torna importante o conhecimento das enfermidades que afetam os bovinos nessa área. Laboratórios de diagnóstico de todo o país estão realizando estudos retrospectivos, a fim de reunir dados epidemioló-gicos e clínico-patológicos de diversas enfermidades em diferentes espécies, nas regiões onde estão inseridos, no intuito de produzirem dados fidedignos sobre as doenças de cada região (Rissi et al 2007, Pierezan et al 2009, Galiza et al 2010, Lucena et al 2010, Almeida et al 2006 The causes of death in dairy cows in Rio Grande do Sul state, Brazil, were analyzed through a retrospective study of the necropsy database from 600 dairy cows necropsied from 1998-2012. From a total of cows analyzed 67.5% were from metropolitan region of Porto Alegre, followed by Northeast (12.4%) and Eastern-center regions (10.4%) of the state.…”

Cattle mortality due to poisoning in Spain: a cross-sectional epidemiological study

“…Taking into account the opinion of expert veterinary surgeons from all the provinces across South Africa and with a 25-year perspective, Kellerman et al (1996) In addition to the lack of national public databases, a notable barrier to investigating cattle poisoning at the national level is a lack of data on the number of cattle at risk (Blanco, 2012), meaning that rates cannot be calculated. Other challenges include there being no requirement to notify cases of poisoning to a central organisation ; a tendency to publish the most striking cases rather than the most common ones ; a lack of qualified professionals to identify cases of poisoning (Rogel & Tamayo, 2007); difficulties in confirming the toxicological diagnosis (Lucena et al, 2010); and a lack of habit among farmers to request post-mortem diagnosis (Esselmont & Kossabaibati, 1997).…”

Germination and initial development of Brachiaria brizantha and Brachiaria decumbens on exposure to cadmium, lead and copper

“…stands out due to high dry matter, easy cultivation and adaptation to different soils, allowing cultivation throughout the year, and low maintenance cost of the cultivated area (Lucena et al, 2010). However, few studies are carried out with this genus on trace element contamination (Gomes et al, 2011).…”