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Agricultura Técnica

versión impresa ISSN 0365-2807

Resumen

ROJAS G, Claudio  y  MANRIQUEZ B, Moisés. Broiler Litter and Whole or Milled Barley Grain in Winter Steer Fattening Rations. Agric. Téc. [online]. 2007, vol.67, n.1, pp.94-99. ISSN 0365-2807.  http://dx.doi.org/10.4067/S0365-28072007000100012.

The objective of this study was to evaluate the animal response to feeding with fattening rations which included ryegrass-white clover (Lolium perenne L.-Trifolium repens L.) pasture silage, broiler litter, and milled or whole barley (Hordeum vulgare L) grain.. Treatments were 1) pasture silage based ration with broiler litter and milled barley supplemented at the time of winter feeding; 2) pasture silage based ration with broiler litter incorporated to the silo at the date of conservation and milled barley supplemented at feeding time; 3) pasture silage based ration with broiler litter and milled barley incorporated into the silo at the date of conservation; and 4) pasture silage based ration with broiler litter and whole barley grain incorporated to the silo at ensiling. Daily LW gains (LWG) were 1.086, 1.099, 1.074 and 1.111 kg animal-1 (P ≥ 0.05); feed consumption were 8.7, 8.7, 8.4 and 8.4 kg DM animal-1 and feed conversion of 8, 7.9, 7.9 and >7.5 kg DM feed kg-1 LW gain, for the treatments 1, 2, 3 y 4, respectively. It was concluded that incorporating broiler litter alone or with barley grain in the silage at the ensiling moment did not affect daily LWG and feed consumption of steers and that incorporating whole or milled barley grain to the silage at the date of conservation produced similar animal response.

Palabras clave : whole barley grain; steers; pasture silage.

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