title: Investigation of the stability of medicinal additives in animal feedingstuffs to prepare reference feeds.
abstract: The stability of several medicinal additives in cattle, pig and poultry feeds has been monitored. The feeds were stored at various temperatures under different conditions; processes such as freeze-drying, gamma-irradiation and pelletization were also applied. The medicinal additives appeared to be more stable in the feeds stored at reduced temperatures and under conditions that totally exclude light. Processing of feeds and storage at elevated temperature appeared to reduce the content of the medicinal additives examined.
authors.affiliation: Department of Trade and Industry, Laboratory of the Government Chemist, Teddington, Middlesex, UK.
authors.forename: I
authors.initials: I
authors.lastname: Patel
authors.forename: K R
authors.initials: KR
authors.lastname: Marshall
authors.forename: C
authors.initials: C
authors.lastname: Williams
authors.forename: H
authors.initials: H
authors.lastname: Othman
authors.forename: N T
authors.initials: NT
authors.lastname: Crosby
mesh_terms: D000821:Animal Feed / Q000032:analysis* / Q000528:radiation effects; D002852:Chromatography, Ion Exchange; D004350:Drug Residues / Q000032:analysis* / Q000528:radiation effects; D005503:Food Additives / Q000032:analysis* / Q000528:radiation effects; D005612:Freeze Drying; D005720:Gamma Rays
chemical_list: D005503:Food Additives