Document Detail

Examining the occurrence of residues of flunixin meglumine in cull dairy cows by use of the flunixin cull cow survey.
MedLine Citation:
PMID:  22765373     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To determine whether cull dairy cows with signs of certain clinical conditions, termed suspect, are more likely than healthy-appearing cull dairy cows to have violative concentrations of flunixin meglumine in their tissues at slaughter.
DESIGN: Cross-sectional study.
ANIMALS: 961 cull dairy cows.
PROCEDURES: Suspect cull dairy cows were selected from 21 beef slaughter establishments with a high production volume of dairy cows, and kidney and liver tissues were collected for screening. Kidney tissues were screened for antibiotics and sulfonamides with the fast antimicrobial screening test (FAST). Liver tissues were screened for flunixin meglumine with an ELISA, and quantitative analysis of ELISA-positive samples was performed with high-performance liquid chromatography. During the same time period, liver tissues from 251 healthy-appearing cull dairy cows were collected for the Food Safety and Inspection Service National Residue Program Scheduled Sampling Plan, but were screened only for flunixin meglumine.
RESULTS: Of 710 suspect cull dairy cows, 50 (7.04%) had liver tissue flunixin concentrations higher than the flunixin tolerance concentration (0.125 ppm). Thirty-one of 168 (18.45%) FAST-positive and 19 of 542 (3.51%) FAST-negative suspect cull dairy cows had violative tissue flunixin concentrations. Two of the 251 (0.80%) healthy-appearing cull dairy cows had violative tissue flunixin concentrations.
CONCLUSIONS AND CLINICAL RELEVANCE: Suspect cull dairy cows, especially those that were also FAST positive, had a significantly higher incidence of violative tissue flunixin concentrations than healthy-appearing cull dairy cows at slaughter. Targeted sampling plans for flunixin meglumine in suspect dairy cows can help to support more efficient use of resources and further safeguard the nation's food supply.
Cynthia L Deyrup; Kristal J Southern; Julie A Cornett; Craig E Shultz; Deborah A Cera
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of the American Veterinary Medical Association     Volume:  241     ISSN:  1943-569X     ISO Abbreviation:  J. Am. Vet. Med. Assoc.     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-07-06     Completed Date:  2012-11-29     Revised Date:  2014-07-31    
Medline Journal Info:
Nlm Unique ID:  7503067     Medline TA:  J Am Vet Med Assoc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  249-53     Citation Subset:  IM    
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MeSH Terms
Anti-Bacterial Agents
Anti-Inflammatory Agents, Non-Steroidal / chemistry*
Clonixin / analogs & derivatives*,  chemistry
Cross-Sectional Studies
Drug Residues
Kidney / chemistry
Liver / chemistry
Reg. No./Substance:
0/Anti-Bacterial Agents; 0/Anti-Inflammatory Agents, Non-Steroidal; 42461-84-7/flunixin meglumine; V7DXN0M42R/Clonixin

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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