English 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