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Abstract

The objectives of this study were to estimate herd and within-herd seroprevalences against bovine leukemia virus in dairy herds of Región de los Ríos and Los Lagos, and to describe them according to the characteristics of the farm. A cross-sectional study and a random stratified sampling strategy...

Author(s)
Grau, M. A.; Monti, G.
Publisher
Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
Citation
Archivos de Medicina Veterinaria, 2010, 42, 2, pp 87-91
Abstract

The objective of this study was to characterize dairy productive systems of Vilcún commune, Cautín province, the IXth Region, Chile, linking qualitative and quantitative variables using statistical multivariate analysis. 24 dairy farms were analyzed: 11 considered small size, 7 medium ones and 6...

Author(s)
Avilez, J. P.; Escobar, P.; Fabeck, G. von; Villagran, K.; Garcia, F.; Matamoros, R.; García Martínez, A.
Publisher
Facultad de Ciencias Veterinarias, Universidad del Zulia, Maracaibo, Venezuela
Citation
Revista Cientifica, Facultad de Ciencias Veterinarias, Universidad del Zulia, 2010, 20, 1, pp 74-80
Abstract

The stocking densities employed in the transport of 413 loads of cattle were surveyed, comprising a total of 12,931 animals, sent to slaughter at two plants in Chile, one in the Xth Region and the other in the Metropolitan Region, in 2002. For journeys to the plant in the Xth Region, the recorded...

Author(s)
Gallo, C.; Warriss, P.; Knowles, T.; Negrón, R.; Valdés, A.; Mencarini, I.
Publisher
Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
Citation
Archivos de Medicina Veterinaria, 2005, 37, 2, pp 155-159
Abstract

Milk and meat production is well developed in the central and the southern zones of the country, with the milk production being concentrated between the Region de los Rios and the Region de Los Lagos; whereas meat production extends from the Maule Region to the Magallanes Region. The recently...

Author(s)
Barría B., K.; Vera O., B.; Cortes B., M.
Publisher
Facultad de Ciencias Agrarias, Universidad Austral de Chile, Valdivia, Chile
Citation
Agro Sur, 2008, 36, 1, pp 27-36
Abstract

The objective of this study was to determine the average annual mortality rate of dairy cows in 3 dairy herds of the Valdivia province, Chile, from 1994-2004. Moreover, the most common causes of death among the cows were determined. The information was gathered from 205 individual record cards of...

Author(s)
Rogel, L.; Tamayo, R.
Publisher
Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
Citation
Archivos de Medicina Veterinaria, 2007, 39, 3, pp 255-260
Abstract

A total of 1578 lactations of 493 cows were analysed between 1990 and 2001. Lactations were grouped according to calving season (autumn and spring), month of calving within season (autumn: March, April, May; spring: July, August, September), cow age, number of calvings and lactation year....

Author(s)
Pérez P., L.; Anrique G., R.; González V., H.
Publisher
Instituto de Investigaciones Agropecuarias, Chillán, Chile
Citation
Agricultura Técnica, 2007, 67, 1, pp 39-48
Abstract

In this study, 90 brain samples from cattle aged 30 months from abattoirs in the Metropolitan Region of Chile were analysed for prion proteins. Initially, 2 suspicious samples were obtained, which after a new assay were finally determined as negative, resulting in 100% of the samples being negative ...

Author(s)
Farías R., G.; Machuca N., A.; Padilla D., D.; Lecocq P., C.
Publisher
Veterinaria Organizacion S.L., Malaga, Spain
Citation
REDVET, 2007, 8, 3, pp 030712
Abstract

The objective of this study was to determine the effect of herbage mass, metabolizable energy content, tiller density and dimensions on grazing selectivity, measured by grazing time and estimated herbage intake, on the ryegrass ingestive behaviour of lacting dairy cows. This study was conducted...

Author(s)
Anwandter A., V.; López C., I.; Balocchi L., O.
Publisher
Facultad de Ciencias Agrarias, Universidad Austral de Chile, Valdivia, Chile
Citation
Agro Sur, 2008, 36, 1, pp 15-26
Abstract

A review of the epidemiology and different ways of analysing Bovine Abortion Syndrome (BAS) is presented. The review is divided into two parts: the first part presents an overview of the epidemiology, impact of the disease and risk factors, while the second part presents some methodologies aimed to ...

Author(s)
Gädicke, P.; Monti, G.
Publisher
Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
Citation
Archivos de Medicina Veterinaria, 2008, 40, 3, pp 223-234
Abstract

Bovine brucellosis is an endemic and zoonotic disease of high economic impact. The genetic identification of the prevalent Brucella abortus strains is important for further epidemiological strategies of disease control. The insertion sequence IS711 was utilized as a genetic marker to differentiate...

Author(s)
Mancilla, M.; Villarroel, M.; Saldías, M. E.; Soto, J.; Zárraga, A. M.
Publisher
Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
Citation
Archivos de Medicina Veterinaria, 2008, 40, 2, pp 187-192

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