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AbstractFull Text

In Chile, the genetic parameters of dairy cow body weight have not been estimated due to lack of data. The objective of this study was to determine variance components of milk yield traits and postpartum body weight. Data were obtained from a dairy research farm in southern Chile. A multi-trait...

Author(s)
Uribe, H.; González, H.
Publisher
Ediciones Universidad de Concepción, Chillán, Chile
Citation
Chilean Journal of Agricultural & Animal Sciences, ex Agro-Ciencia, 2018, 34, 3, pp 266-274
Abstract

Administration of monensin to dairy cows during the transition period may improve cow health, although this is debated. An evaluation of the effects of an intraruminal controlled-released bolus of monensin on health and milk production in transition Holstein cows was done in a Chilean dairy farm....

Author(s)
Melendez, P.; Arévalos, A.; Duchens, M.; Pinedo, P.
Publisher
Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP), Mexico City, Mexico
Citation
Revista Mexicana de Ciencias Pecuarias, 2019, 10, 1, pp 84-103
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
AbstractFull Text

In order to evaluate the expression of sire genetic evaluations obtained in North America for Chilean Black and White Cattle, genetic correlations were estimated for milk (MY), fat (FY) and protein (PY) yields, and for fat (F%) and protein (P%) contents between Chile, Canada and the US, from...

Author(s)
Montaldo, H. H.; Castillo-Juárez, H.; Lizana, C.; Trejo, C.; Cienfuegos-Rivas, E. G.; Pelcastre-Cruz, A.
Publisher
Polish Academy of Sciences, Institute of Genetics and Animal Breeding, Jastrzebiec, Poland
Citation
Animal Science Papers and Reports, 2015, 33, 1, pp 23-33
Abstract

A field trial was conducted on five farms to determine the effect of feeding distillery dried grains (DDGS) on milk production in the southern dairy region of Chile. The trial was repeated on each farm during winter (July and August; primarily silage-based rations) and spring (November and...

Author(s)
Shaver, R.; Ehrenfeld, R.; Olivares, M.; Cuellar, J.; Inostroza, F.
Publisher
Instituto de Investigaciones Agropecuarias, Chillán, Chile
Citation
Chilean Journal of Agricultural Research, 2010, 70, 2, pp 337-342
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

Correlated selection response of United States Holstein bulls was estimated in the provinces of Bío-Bío and Malleco (Chile). The aim of this research was to obtain indicators that could estimate the profitability obtained by chilean farmers due to the investment in imported semen. Information for...

Author(s)
Jara, A.; Guzmán, A.; Peña, M.; García, M. J.; Barría, N.
Publisher
Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
Citation
Archivos de Medicina Veterinaria, 2005, 37, 1, pp 15-22
Abstract

The performance of the daughters of New Zealand Friesian (Nz) sires, British Friesian (Br) sires and Black Chilean Friesian (FN) cows were studied. The cows were in a pasture system, having a late winter calving, and maintained at a university in Chile. Two comparisons were made: 50% Nz vs. FN (C1) ...

Author(s)
García F., X.; González V., H.; Magofke S., J. C.; Cuevas F., A.
Publisher
Facultad de Ciencias Agronómicas, Universidad de Chile, Santiago, Chile
Citation
Avances en Producción Animal, 2001, 26, 1/2, pp 63-78
Abstract

The milk and milk fat production, standardized to 305-day lactations, was compared for 89 cows naturally infected with bovine leukosis virus (BLV) and 104 uninfected cows. The animals were Holstein and Holstein × Chilean-Friesian, from a herd of the Metropolitana region of Chile, representing...

Author(s)
Villouta C., G.; Contreras L., M.; Agüero E., H.; Pedraza G., C.; Montes O., G.
Citation
Avances en Ciencias Veterinarias, 1992, 7, 2, pp 191-196

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