Click on a headline below to view the desired abstract. The print version    opens all abstracts at once. Amounts of whey and their use in Germany Liquid whey in pig feeding Investigations on composition of whey products as well as on effects of sulfate concentrations in milk replacers on faeces composition in calves Food refusals - nutrient content and andisired substances       Petra Philipps Untersuchungszentrum Bonn-Roleber - LUFA, Siebengebirgsstr. 200, D-53229 Bonn U. Kohl Bundesverband der Nahrungsmittel- und Speiseresteverwertung e.V., Eislebener Str. 40, D-06268 Querfurt Abstract Food refusal samples from 10 German processing plants were analysed quantitatively for the contents of the heavy metals Pb, Cd, As, and Hg, Deoxynivalenol, Zearalenon, PCB, CKW, PCDD/F and qualitatively on feed additives and pharmaceuticals. The contents were below the actual legal maximal residue level or the actual standard and orientation residue level respectively. With regard to the investigated undesired substances in these samples, there are no restrictions for the use of processed food-refusals as feeding-stuff for growing-finishing pigs.   Zusammenfassung Speiserestproben aus 10 bundesweiten Aufbereitungsanlagen wurden quantitativ auf die Gehalte an den Schwermetallen Pb, Cd, As und Hg, PCB, CKW, Dioxine sowie qualitativ auf Zusatzstoffe und Chemotherapeutika geprüft. Die Gehalte lagen unterhalb der gültigen gesetzlich vorgegebenen Höchstgehalte bzw. unterhalb der Richt- und Orientierungswerte. Hinsichtlich der geprüften Substanzen bestehen für das vorliegende Datenmaterial keine Einschränkungen für den Einsatz als Futtermittel. Controlling risks management when processing organic secondary waste products from the food industries: a modern recycling plant as an example Utilization of garbage in pig fattening On particle size of diets for pigs based on by-products/refusals from food production Feeding value of crambe by-products Fermented rye bran - an interesting ingredient and an example for an significant technology Unconventional/unusual feedstuffs in animal nutrition - a variety by means of examples Controlling associations for by-products - systematic improvement of marketing - Investigations on the use of liquid conserved sugar beets in cattle Expandat� of dried beet pulp for cattle feeding Conceptions of quality assurance for by-products of sugar beet processing Importance of the technology on utilization and quality of molasses Use of by-products in liquid pig feeding