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Abstract

The current study describes productive, reproductive and metabolic performances reached by beef cattle under organic and conventional management. The experiment was carried out in two farms in La Araucanía Region, Chile. Both farms provided six cows and one bull for copulation. The feeding offered...

Author(s)
Contreras, M. J.; Felmer, R.; Letelier, C.
Publisher
Facultad de Ciencias Veterinarias, Universidad del Zulia, Maracaibo, Venezuela
Citation
Revista Cientifica, Facultad de Ciencias Veterinarias, Universidad del Zulia, 2018, 28, 5, pp 375-385
AbstractFull Text

The study was conducted in Osorno Chile, in order to assess the effect of castration on average daily gain of weaned calves during the backgrounding phase. The study considered a total of 20 weaned calves of a beef biotype whose average live weight was 189.5 kg (±4.3 SEM). Two groups of 10 animals...

Author(s)
Arias, R. A.; Pérez Fehrmann, J. A.; Velásquez, A. C.; Alvarado-Gilis, Ch. A.
Publisher
Facultad de Ciencias Agrarias, Universidad Austral de Chile, Valdivia, Chile
Citation
Agro Sur, 2014, 42, 3, pp 23-29
AbstractFull Text

This publication contains eight papers that discuss the following topics: (i) effect of potassium/sodium ratio in the pasture on ingestive behaviour of dairy cows; (ii) water-soluble carbohydrate and nitrogen concentrations after defoliation in perennial ryegrasses (Lolium perenne) in spring; (iii) ...

Publisher
Facultad de Ciencias Agrarias, Universidad Austral de Chile, Valdivia, Chile
Citation
Agro Sur, 2016, 44, 3, pp 1-87
Abstract

Perennial ryegrass pastures are the main feed for dairy cows in temperate regions. Alternatives to increase farm sustainability such as naturalized pastures have been proposed, and only limited knowledge exists regarding their potential as a forage source for grazing dairy systems. A field study...

Author(s)
Keim, J. P.; López, I. F.; Balocchi, O. A.
Publisher
Wiley-Blackwell, Oxford, UK
Citation
Grass and Forage Science, 2015, 70, 2, pp 283-295
AbstractFull Text

Contradictory results has been found on the effects of soybean supplementation and conjugated linoleic acid (CLA) content in milk on feeding systems based on fresh forage The objective of the study was to evaluate the effect of a dietary supplement with different quantities of extruded whole...

Author(s)
Aviléz, P.; Escobar, P.; Diaz, C.; Fabeck, G. von; Matamoros, R.; García, F.; Alonzo, M.; Delgado-Pertíñez, M.
Publisher
Spanish National Institute for Agricultural and Food Research and Technology (INIA), Madrid, Spain
Citation
Spanish Journal of Agricultural Research, 2012, 10, 2, pp 409-418
Abstract

During the winter of 1994, a survey of productive and reproductive parameters was undertaken in the south-central part of Chile on 71 cows from 4 small farms with low milk production (<3000 litres/year). Cows were allowed to graze a perennial ryegrass and white clover pasture supplemented with...

Author(s)
Orellana, P.; Recabarren, S.; Lobos, A.; Islas, A.; Briones, M.; Rubilar, L.
Citation
Preventive Veterinary Medicine, 1999, 38, 2/3, pp 207-215
Abstract

The effects of 3 successive previous years of winter (May-Aug.) grazing by dairy cattle or closing on a Lolium perenne/Trifolium repens sward were studied from June to Dec. 1986 in field trials near Temuco, Chile. Plots were not winter-grazed during 1986 but were rotationally grazed in spring. DM...

Author(s)
Romero Y., O.; Gatica A., R.
Citation
Agricultura Técnica, 1989, 49, 2, pp 141-147
Abstract

T. pratense was undersown into a barley crop in spring 1982 in field trials at Remehue. The T. pratense (TR) was irrigated in Aug. 1983 was harvested and ensiled on 8-10 Dec. 1983 at the onset of flowering. Silage was also made on mixed permanent pasture (PP) also irrigated in Aug. 1983 and...

Author(s)
Dumont L., J. C.; Lanuza A., F.; Silva O., J. M.
Citation
Agricultura Técnica (Santiago), 1989, 49, 3, pp 253-259
Abstract

At each of 2 sites in central southern Chile crossbred Friesian cows were grazed together in a traditional rotational grazing system (A) or were kept in 2 groups, the half producing most milk grazing first (B1) followed by the others (B2) grazing on what was left. The pastures were irrigated and...

Author(s)
Jahn B., E.; Vyhmeister B., H.; Vidal V., A.; Bonilla E., W.; Millas A., P.
Citation
Agricultura Técnica, 1983, 43, 3, pp 203-209

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