title: [Stability of a number of antibiotics, coccidiostats and growth-stimulating substances during manufacture and storage of (medicated) feed pellets (author's transl)].
abstract: The effect of processing and storage on the stability of a number of antibiotics, coccidiostats and growth-stimulating substances, viz. lasalocid, monensin-Na, avoparcin, olaquindox, carbadox, sulfadimidine-Na and lincomycin in (medicated) feeds was studied. Mixtures containing the additives were conditioned by steam at a temperature of 80 degrees C, and pelleted. After each stage in processing and following storage of the pellets for a month, the concentrations of antibiotics, etc., were determined and compared with the concentrations as calculated in the original feed mixtures. The results suggested that none of these substances were very susceptible to the conditions of processing applied. All samples of stored pellets were found to contain at least 90 per cent of the concentrations present in the original feed mixtures, the combined negative effects of processing and storage hardly being beyond the margin of accuracy of the analyses.
mesh_terms: D000821:Animal Feed / Q000032:analysis*; D000900:Anti-Bacterial Agents / Q000032:analysis*; D003049:Coccidiostats / Q000032:analysis*; D004355:Drug Stability; D005503:Food Additives / Q000032:analysis; D005519:Food Preservation; D006133:Growth Substances / Q000032:analysis*
chemical_list: D000900:Anti-Bacterial Agents; D003049:Coccidiostats; D005503:Food Additives; D006133:Growth Substances
vernacular_title: De stabiliteit van enige antibiotica, coccidiostatica en groeibevorderende stoffen tijdens bereiding en opslag van (medicinale) mengvoederpellets.