Efecto de diferentes niveles de colina sobre la utilización de la pulpa de café en dietas para pollos de engorde (ING)
Eighty non-sexed broilers from the commercial hybrid Indian River, were allocated to circular metallic pens according to a complete randomized design, to study the effect of choline as a methyl-group donor on the use of dehydrated coffee pulp (DCP) in their diets, during the starting period (0-4 weeks). In the finishing period (5-7 weeks), 40 randomly selected broilers were individually caged and distributed in a factorial (5x2) design. At 7 weeks of age a nitrogen balance assay was carried out.
Feed intake, weight gain and feed conversion (feed/gain) were evaluated in both periods and in the finishing period; protein and crude fiber intake were additionally evaluated. Nitrogen retention and digestibility and dry matter utilization were determined during the nitrogen balance assay.
The inclusion of DCP in the diet had negative effects on the variables evaluated in both periods and the nitrogen balance assay. The different levels of choline added over its requirement for each period did not diminish those effects.
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