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Abstract

Chilean bovine dairy production needs to increase milk solid content. This study evaluates and compares genetic and economic progress of New Zealand Holstein (HoNZ) and New Zealand Jersey-HoNz crossbreed (Fx) using selection indices. The traits analysed were: milk (L) with 3% fat and 3% protein...

Author(s)
Delgadillo, J.; González, H.; Uribe, H.
Publisher
Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
Citation
Archivos de Medicina Veterinaria, 2016, 48, 3, pp 261-267
Abstract

Milk fat composition is important to consumer health. During the last decade, some fatty acids (FA) have received attention because of their functional and beneficial effects on human health. The milk FA profile is affected by both diet and genetics. Differences in milk fat composition are based on ...

Author(s)
Carvajal, A. M.; Huircan, P.; Dezamour, J. M.; Subiabre, I.; Kerr, B.; Morales, R.; Ungerfeld, E. M.
Publisher
FUNPEC, Brazil
Citation
Genetics and Molecular Research, 2016, 15, 2, pp 15027057
Abstract

This study aims to weigh the influence of observable traits on live cattle prices, i.e., the percent impact on the final price of various physical characteristics. These characteristics are those that commonly are published in auction catalogues, as is the case of: average lot weight, lot size,...

Author(s)
Troncoso, J. L.; Engler, A.; Manriquez, P.; Valdivia, A.
Publisher
Facultad de Agronomía e Ingeniería Forestal, Pontificia Universidad Católica de Chile, Santiago, Chile
Citation
Ciencia e Investigación Agraria, 2012, 39, 1, pp 37-45
AbstractFull Text

Most of the studies on nitrogen (N) leaching have been carried out on cut grass, and there is a lack of information on beef grazed grasslands. The objective of this study was to quantify N runoff and leaching losses in beef production systems with two different immediate stocking rates (63 and 191...

Author(s)
Salazar, F.; Alfaro, M.; Ledgard, S.; Iraira, S.; Teuber, N.; Ramírez, L.
Publisher
Chilean Society of Soil Science, Temuco, Chile
Citation
Journal of Soil Science and Plant Nutrition, 2011, 11, 2, pp 97-108
AbstractFull Text

These proceedings present papers submitted at the 17th International Symposium and 9th International Conference on Lameness in Ruminants, held in Bristol, UK, 11-14 August 2013. The symposium theme was Lameness in Ruminants: Past, Present and Future. Topics of papers review the previous research...

Author(s)
Whay, B.; Hockenhull, J.
Publisher
University of Bristol, Bristol, UK
Citation
Proceedings of the 17th International Symposium and 9th International Conference on Lameness in Ruminants, Bristol, UK, 11-14 August 2013, 2013, pp 294 pp.
Abstract

In the present study, the effects of IS900 polymerase chain reaction (PCR)-confirmed subclinical paratuberculosis on serum beta-carotene and retinol concentrations in dairy cattle were investigated. A total of 30 multiparous, clinically normal, paratuberculosis non-vaccinated Holstein dairy cows,...

Author(s)
Cİvelek, T.; Celİk, H. A.; Ozenc, E.; Avcİ, G.; Kav, K.; Cİngİ, C. C.; Yİlmaz, O.
Publisher
Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
Citation
Archivos de Medicina Veterinaria, 2009, 41, 3, pp 281-284
Abstract

A significant proportion of cattle receive inadequate dietary Se because of its low content in soils and pastures of various regions of the world. Several economically important diseases in dairy cows, such as mastitis, have been associated with Se deficiency. The objective of this study was to...

Author(s)
Ceballos, A.; Kruze, J.; Barkema, H. W.; Dohoo, I. R.; Sanchez, J.; Uribe, D.; Wichtel, J. J.; Wittwer, F.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2010, 93, 4, pp 1468-1477
Abstract

The objective of this study is to characterize the heat detection, conception and pregnancy rates of Holstein dairy herds from Central area of Chile in the year 2004. Records from six dairy herds was examined and results showed that heat detection rate for period 1, 2 and 3 was 48.4%a, 52.8% b, and ...

Author(s)
Duchens, M.; Melendez, P.; Perez, A.; Moraga, L.; Archbald, L. F.
Publisher
American Association of Bovine Practitioners, Stillwater, USA
Citation
Proceedings of the Fortieth Annual Conference, American Association of Bovine Practitioners, Vancouver, British Columbia, Canada, 20-22 September, 2007, 2007, pp 281
Abstract

The productive performance of high-yielding Holstein-Friesian cows and the non-genetic effects of year and season of calving, cow age and dry period length were studied in cattle under permanent confinement (PC) and pasture-based (PB) systems in 2 farms of Region X of Chile. The analysed data were...

Author(s)
Davis M., P.; Magofke S., J. C.; García F., X.; Gana V., E.; González V., H.
Publisher
Facultad de Ciencias Agronómicas, Universidad de Chile, Santiago, Chile
Citation
Avances en Producción Animal, 2006, 31, 1/2, pp 65-88
Abstract

The productive performance of high-yielding Holstein-Friesian cows and the non-genetic effects of year and season of calving, cow age and dry period length were studied in cattle under permanent confinement with year around calving in the Region X of Chile. The analysed data were based on 2392...

Author(s)
Davis M., P.; García F., X.; Magofke S., J. C.; Gana V., E.; González V., H.
Publisher
Facultad de Ciencias Agronómicas, Universidad de Chile, Santiago, Chile
Citation
Avances en Producción Animal, 2006, 31, 1/2, pp 89-106

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