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CALIDAD DE LA LECHE, DIGESTIBILIDAD IN VITRO DE LA MATERIA SECA Y PRODUCCIÓN EN VACAS ALIMENTADAS CON GRAMÍNEAS SOLAS O ASOCIADAS CON Lotus uliginosus

Authors: Morales, A; Leon, J; Cárdenas, E; Afanador, G; Carulla, J;

CALIDAD DE LA LECHE, DIGESTIBILIDAD IN VITRO DE LA MATERIA SECA Y PRODUCCIÓN EN VACAS ALIMENTADAS CON GRAMÍNEAS SOLAS O ASOCIADAS CON Lotus uliginosus

Abstract

La presente investigación tuvo como objetivo evaluar el uso de la leguminosa Lotus uliginosus como alternativa de inclusión dentro de las praderas en dos ecorregiones estratégicas de la Sabana de Bogotá. En cada finca se evaluaron cuatro tratamientos: 1) kikuyo solo (P. clandestinum), 2) kikuyo asociado con trébol pata de pájaro (P. clandestinum + L. uliginosus), 3) festuca alta sola (F. arundinacea) y 4) Festuca alta asociada con trébol pata de pájaro (F. arundinacea + L. uliginosus). El número de bovinos varió de acuerdo a la capacidad de carga de cada finca. Se utilizaron animales que se encontraban en el segundo tercio de lactancia durante un período experimental de siete días. En cada tratamiento se determinó la producción (L/día) y calidad de leche (% de grasa, proteína y sólidos totales); en la pastura se evaluó la composición química (MS, FDN, FDA) y la digestibilidad in vitro de la materia seca (DIVMS). Se midió el consumo voluntario. En la finca Megaleche la producción de biomasa presentó diferencias significativas (P<0,05) entre los tratamientos destacándose el tratamiento del kikuyo solo; la calidad nutricional de las pasturas también presentó diferencias (P<0,04) destacándose el tratamiento de kikuyo + trébol pata de pájaro, asociación que también se destacó en consumo voluntario (P< 0.05) y producción de leche (P<0,05). En la finca Colega el contenido de proteína del forraje presentó diferencias cuando las gramíneas se asociaron con el trébol pata de pájaro (P<0,001). Se concluyó que la introducción del Lotus en las praderas mejoró la producción de leche y consumo de materia seca en los animales. 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.

Keywords

Festuca, asociación, Lotus, association, P. clandestinum

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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