EPIDEMIOLOGIA VETERINARIA THRUSFIELD PDF

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Cow mortality in three dairy herds: preliminary study The objective of this study was to determine the average annual mortality rate of dairy cows in three dairy herds of the Valdivia province, Chile, from to ; in addition the most common causes of death among the cows were determined. The information was gathered from individual record cards of dead cows and related annual inventories, and analysed using Excel.

The average gross mortality rate for the three farms was 4. The highest mortality percentages were reached between April and September. It was concluded that there is a high mortality rate in dairy farms and that the causes of death were different depending on the farm, but in general they were related to calving, undetermined causes, and digestive disorders.

Key words: mortality rate, death, dairy cattle. Se concluye que existe una alta tasa de mortalidad en los planteles lecheros, siendo las causas de muerte diferentes dependiendo del predio, pero en general se resume que los trastornos derivados del parto, causas no determinadas y los trastornos digestivos son las que prevalecen. Palabras clave: mortalidad, muertes, vacas lecheras. Origen de la causa de muerte.

Esslemont y Kossaibati indican que el hecho que ninguna causa haya sido registrada para casi la mitad de las vacas muertas en su estudio sea probablemente porque la causa nunca fue establecida y porque pocos ganaderos examinan a las vacas post mortem.

Causas de mortalidad y aborto en bovinos. Informe de 1. Rev Med Vet 85, Biology of dairy cows during the transition period: the final frontier? J Dairy Sci 82, The degree and causes of cow loss as related to genotypes, keeping systems and herd size.

World Rev Anim Prod 26, Culling in 50 dairy herds in England. Vet Rec , Vet Res 26, Mortality, morbidity, case-fatality, and culling rates for California dairy cattle as evaluated by the National Animal Health Monitoring System, Prev Vet Med 8, Actualidad Regional Instituto Colombiano Agropecuario 6, Periparturient traits in seven high dairy herds. Incidence rates, association with parity, and interrelationships among traits. J Dairy Sci 70, Longevidad y factores de riesgo de muerte en vacas lecheras.

A study of mortality among suckler and dairy cows in Northern Ireland in Diagnosis of digestives deaths. J Anim Sci 76, Cointegration analysis used in a study of dairy cow mortality. Prev Vet Med 42, Mortality patterns in dairy animals under organized herd management conditions at Karnal, India. Trap Anim Health Pro 36, Descriptive epidemiological study on culling and deaths in eight dairy herds. Aust Vet J 76, Mortality including euthanasia among Danish dairy cows Prev Vet Med 62, Editorial Acribia S.

Servicios Personalizados Revista. SUMMARY The objective of this study was to determine the average annual mortality rate of dairy cows in three dairy herds of the Valdivia province, Chile, from to ; in addition the most common causes of death among the cows were determined.

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Aziz-Jamalludin, J. Sopian Johar, M. Acta Veterinaria Scandinavica. Supplementum Blajan, L. In: Epidemiology in animal health. Blood, D.

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EPIDEMIOLOGIA VETERINARIA

Desarrollo de la medicina veterinaria. Convert currency. Add to Basket. Book Description Editorial Acribia, Condition: New. Determinantes de la enfermedad. Formas de la enfermedad.

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Seroepidemiology of Toxoplasma gondii in domestic cats treated in private clinics of Porto Alegre, Brazil. E-mail: lucianedubina yahoo. The sera of cats from Porto Alegre, southern Brazil, were tested by indirect hemagglutination IHA and indirect immunofluorescence IIF in order to determine the frequency of Toxoplasma antibodies. Information such as breed, sex, age and access or not to the street and dietary habits were assessed using an epidemiological questionnaire and also statistical analysis for correlation with the serological results obtained.

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