Drug residues recovered in feed after various feedlot mixer truck cleanout procedures.

Publisher: Elsevier Country of Publication: United States NLM ID: 7703944 Publication Model: Print Cited Medium: Print ISSN: 0362-028X (Print) Linking ISSN: 0362028X NLM ISO Abbreviation: J Food Prot Subsets: MEDLINE

Publication: 2023- : [New York, NY] : Elsevier
Original Publication: Ames, Iowa, International Association of Milk, Food, and Environmental Sanitarians.

Equipment Contamination*; Disinfection/*methods ; Drug Residues/*analysis ; Food Contamination/*analysis ; Hordeum/*chemistry; Animal Feed ; Anti-Bacterial Agents/analysis ; Chlortetracycline/analysis ; Tylosin/analysis

A study was conducted to determine the effectiveness of two methods of equipment cleanout, sequencing or flushing, for reducing drug carryover in feedlot mixer trucks. Feed samples were collected from total mixed rations before and after various feed mixer equipment cleanout procedures. Medicated rations contained either 11 ppm of tylosin or 166 or 331 ppm of chlortetracycline. There were no differences between sequencing and flushing or between flushing with dry barley and flushing with barley silage in the median proportion of drug recovered in the next ration. A larger drug reduction was achieved using flush material at a volume of 10 versus 5% of the mixer capacity and mixing the flush material for 3 versus 4 min. Regardless of the drug or prescription concentrations in the total mixed rations or the equipment cleanout procedure used, concentrations of chlortetracycline and tylosin recovered were very low.

0 (Anti-Bacterial Agents)
WCK1KIQ23Q (Chlortetracycline)
YEF4JXN031 (Tylosin)

Date Created: 20100107 Date Completed: 20100309 Latest Revision: 20190819

20221213

10.4315/0362-028x-73.1.75

20051207