DIGESTIBILITY AND ACCEPTANCE OF A RESIDUE FROM PANKREATIN-PRODUCTION IN GROWING-FINISHING PIGS .1. TOTAL DIGESTIBILITY OF CRUDE NUTRIENTS

A liquid residue from ''Pankreatin''-production (DM=10%) was analyzed for crude nutrients, amino acids, macro- and toxic elements. Digestibi lity of nutrients was measured with a total of 10 pigs, applying the d ifference technique. As compared to other feedstuffs of animal origin, nutrients showed high content in protein (67% of DM) and crude ash (1 8% of DM), but ether extracts was found to be very low (1% of DM). Abo ut 14% of DM were characterized as so called Organic Residue (crude ca rbohydrates). According to the results of amino acids analysis, protei n quality proved to be high. Contents of limiting amino acids are high er then in soya protein. Lysin content per 100 g protein amounted to 6 .9 g in contrast to 2.9 g in soya. Calcium, phosphorus and sodium cont ents are not typical to feedstuffs of animal origian, obviously due to the production process. Digestibility of nutrients was found to be 90 % for protein, 90% for organic matter, 30% for ether extracts and 91% for Organic Residue. Metabolisable energy was calculated to be 15.0 MJ /kg DM, corresponding to a meat meal high in protein (15.2 MJ/kg DM).