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Brazilian Journal of Poultry Science

versão impressa ISSN 1516-635X


ZAVARIZE, KC et al. Metabolizable energy of different glycerine sources derived from national biodiesel production for broilers. Rev. Bras. Cienc. Avic. [online]. 2014, vol.16, n.4, pp.411-416. ISSN 1516-635X.

The objective of the present study was to evaluate the quality of different glycerine sources produced in Brazil and to analyze their metabolizable energy levels and digestibility for broilers. Firstly, the composition of 10 samples of glycerine from different sources was analyzed. Secondly, glycerine from four different sources presenting contrasting compositions were selected to determine their metabolizable energy levels and digestibility in metabolism assays using 200 broilers between 21 and 29 days of age, applying the method of total excreta collection. The values of apparent metabolizable energy corrected for nitrogen balance of the four glycerine sources were 3145, 5026, 2828, and 2892 kcal/kg.

Palavras-chave : Alternative feedstuffs; broilers; metabolizable energy; glycerol.

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