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Abstract

The content of selenium (Se) in forage samples and the blood activity of glutathione peroxidase (GSH-Px; EC 1.11.1.9) of groups of lactating cows and heifers were evaluated between autumn and spring of 1999 in 12 dairy herds from IXth Region (38° S and 71° W) of Chile. Se concentration was...

Author(s)
Wittwer, F.; Araneda, P.; Ceballos, A.; Contreras, P. A.; Andaur, M.; Böhmwald, H.
Publisher
Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
Citation
Archivos de Medicina Veterinaria, 2002, 34, 1, pp 49-57
Abstract

The cost of feeding dairy cattle in different farms in Chile, Argentina and Brazil was analysed, under different methods viz. direct grazing, annual and perennial pastures, rough forage and concentrates. Also, the relation between feeding costs and animal productivity and the incidence of main...

Author(s)
Ostrowski, B.
Publisher
Facultad de Agronomía, Universidad de Buenos Aires, Buenos Aires, Argentina
Citation
Revista de la Facultad de Agronomía (Universidad de Buenos Aires), 2003, 23, 1, pp 1-10
Abstract

The performance of cows 0.5 and 0.75 Newzealand Friesian (0.5 Nz and 0.75 Nz), 0.5 American Holstein crossbreds (0.5 Ho), and females of local Erison Negro Chileno breed (ON), were studied in a pasture system with calving at winter ends (Chile). A total of 667 lactation records between 1993 and...

Author(s)
González, H.; García, X.; Magofke, J. C.; Cuevas, A.
Publisher
Instituto de Zootecnia, Facultad de Veterinaria, Córdoba, Spain
Citation
Archivos de Zootecnia, 2002, 51, 195, pp 303-314
Abstract

Forage samples were obtained from 25 dairy farms in the 9th and 10th regions of Chile in 1999. Iodine (I) concentrations were analysed by a kinetic-colorimetric method. It was shown that iodine samples were below 0.4 ppm on a dry matter basis, averaging 0.20±0.08 ppm. Forage with normal I...

Author(s)
Contreras, P. A.; Ceballos, A.; Matamoros, R.; Wittwer, F.
Publisher
Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
Citation
Archivos de Medicina Veterinaria, 2003, 35, 1, pp 75-79
Abstract

The adhesion deficiency of bovine leukocytes to antigens, known as BLAD (bovine leukocyte adhesion deficiency), is a hereditary genetic disease which is lethal for the Holstein breed. It is a recessive autosomal disease. The objective of this research was to standardize the molecular techniques for ...

Author(s)
Felmer D., R.; Butendieck B., N.; Butendieck B., B.; Villegas M., J.
Publisher
Instituto de Investigaciones Agropecuarias, Chillán, Chile
Citation
Agricultura Tecnica, 2001, 61, 1, pp 42-50
Abstract

The natural habitat for more than 90% of the domestic South American camelids (SAC) in Chile, alpaca (Lama pacos) and llama (Lama glama), is located between 11° and 21° South latitude at 3800 and 5000 ms of altitude. Lately, alpacas and llamas have been introduced to other geographic parts of the...

Author(s)
Celedón, M. O.; Osorio, J.; Pizarro, J.
Publisher
Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
Citation
Archivos de Medicina Veterinaria, 2006, 38, 3, pp 247-252
Abstract

Neospora caninum is a protozoan parasite that affects cattle and dogs. Neosporosis seems to be widely prevalent in Chile. To date, nothing is known on the presence of N. caninum in the horse population of the country. In South America, 2 seroprevalence studies have failed to find antibodies in...

Author(s)
Patitucci, A. N.; Perez, M. J.; Carcamo, C. M.; Baeza, L.
Publisher
Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
Citation
Archivos de Medicina Veterinaria, 2004, 36, 2, pp 203-206
Abstract

Bovine viral diarrhoea virus (BVDV) has a worldwide distribution and most cattle are seropositive, although the prevalence may vary among herds and among different age groups. Persistently infected (PI) animals are the most efficient transmitters of infection often remaining unnoticed in the herds, ...

Author(s)
Reinhardt, G.; Riedemann, S.; Tadich, N.
Publisher
Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
Citation
Archivos de Medicina Veterinaria, 2002, 34, 1, pp 97-101
Abstract

During the autumn and spring of 1998 and 1999, a study was carried out under dryland conditions in the IXth Region in Chile to determine beef production, yield and quality of DM, and degree of symbiotic N fixation of subterranean clover (Trifolium subterraneum) and yellow serradella (Ornithopus...

Author(s)
Rojas G., C.; Romero Y., O.; Barrientos D., L.
Publisher
Instituto de Investigaciones Agropecuarias, Chillán, Chile
Citation
Agricultura Técnica, 2002, 62, 4, pp 519-529
Abstract

The aim of this work was to identify and evaluate different practices utilized by dairy farmers for oestrus detection in the Araucania Region (IX Region) in Chile. An evaluation was performed on 24 intensive dairy farms in relation to the method utilized for oestrus detection, the value...

Author(s)
Sepúlveda Becker, N. G.; Rodero Serrano, E.
Publisher
Facultad de Ciencias Veterinarias, Universidad del Zulia, Maracaibo, Venezuela
Citation
Revista Cientifica, Facultad de Ciencias Veterinarias, Universidad del Zulia, 2002, 12, 3, pp 169-174

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