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Proposal for definition and for experimental estimation of the protein retention capacity of growing animals


, : Proposal for definition and for experimental estimation of the protein retention capacity of growing animals. Zeitschrift fur Tierphysiologie, Tierernahrung und Futtermittelkunde 42(4): 173-189

Protein retention capacity A is defined as the maximum of a square function with x = IMEx (intake of metabolizable energy) and y = RPEx (retention of protein energy) expressed in kJ/kg W0.75. For estimating those variables N-balance trials were made, the first of which gave A-values of about 600 kJ for young pigs weighing 30 to 40 kg, and of 150 to 200 kJ for 80 to 100 kg.

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