Abstract

Dutch institutes dealing with production figures for mineral excretion by animal husbandry installed a working party to standardize their excretion figures. The working party developed a calculation scheme based on a mass balance over the animal. Excreted minerals = minerals in feed - minerals in products (meat, milk, eggs). Special attention is paid to the calculation of the averaged annual feed intake and its N, P and K content. The publication is a joint product of CBS, IKC-Veehouderij, LAMI, LEI-DLO, RIVM and Landelijke Mestbank.