Determination of apparent metabolizable energy of crude glycerin in broilers chickens
AUTOR(ES)
Gianfelici, MF, Ribeiro, AML, Penz Jr, AM, Kessler, AM, Vieira, MM, Machinsky, T
FONTE
Revista Brasileira de Ciência Avícola
DATA DE PUBLICAÇÃO
2011-12
RESUMO
The objective of the experiment was to determine the Apparent Metabolizable Energy corrected for nitrogen (AMEn) of a glycerin product derived from biodiesel production for broilers. A number of 35 male Ross 308 broilers, with 35 days of age was fed ad libitum diets containing 0, 5, 10, 15, or 20% glycerin. AMEn was determined using total excreta collection, with four days of adaptation and three days of collection. Increasing glycerin intakes resulted in increased water excretion. Glycerin AMEn varied as a function of dietary inclusion levels, and a cubic equation was identified by regression analysis. Maximum AMEn level- 4890 kcal/kg DM- was obtained with 15% glycerin inclusion. However, this level caused excessive water excretion, making its use unpractical.
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