Resumen

MORALES, A et al. MILK CHEMICAL COMPOSITION, MATTER DRY IN VITRO DIGESTIBILITY AND PRODUCTION IN COWS FED ALONE GRASSES OR ASSOCIATED Lotus uliginosus. Rev. Med. Vet. Zoot. [online]. 2013, vol.60, n.1, pp.32-48. ISSN 0120-2952.

The present research aimed to evaluate the use of the legume Lotus uliginosus alternatively inclusion into the meadows on two strategic ecoregions savannah of Bogota. In each farm four treatments: 1) only kikuyu (P. clandestinum), 2) associated kikuyo Birdsfoot trefoil (P. clandestinum + L. uliginosus), 3) single tall fescue (F. arundinacea) and 4) tall fescue associated Birdsfoot trefoil (F. arundinacea + L. uliginosus). The number of cattle varied according the load capacity of each farm. Were used animals that were in the second third of lactation during a trial period of seven days, in each treatment was determined production (L/day) and milk quality (% of fat, protein and total solids). In the pasture it was evaluated chemical composition (DM, NDF, ADF) and in vitro digestibility of matter dry (IVDMD). Voluntary intake was measured. On the farm Megaleche biomass production showed significant differences (P˂0.05) between treatments kikuyu emphasizing treatment alone nutritional quality of pastures also showed significant differences (P˂0.04) emphasizing treating kikuyu + Birdsfoot trefoil an association that was also highlighted in the voluntary intake (P˂0.05) and milk production (P˂0.05). On the farm Colega protein content of forage grasses differed when associated with Birdsfoot trefoil (P˂0.001). It was concluded that the introduction of Lotus grassland improved milk production and dry matter intake in animals.

Palabras clave : association; Lotus; Festuca; P. clandestinum.

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