Medicate feeds are instrumental in maintaining animal health and promoting growth and feed efficiency. However, it is important that medicated feeds are properly manufactured and withdrawal times be observed. If label instructions are not followed, animal health can be adversely affected and may result in illegal tissue residues.

The FDA Laboratories, therefore, offers a service directed at the determination of feed additives classified as “contaminants in feed”.

The services we offer specialize in the determination of the correct inclusion rate of veterinary drugs in feeds, premixes, and water.

We also assist the feed mills in determining the carry-over, if any, of medication between different batches in the feed mill. These analyses are referred to as trace-level analyses and are usually determined in concentrations less than 1 mg/kg of feed.

•  Active ingredient testing of medicated premixes and feeds

• Pre-mixes feeds or active ingredients
• Regulatory compliance testing of animal feed products

• Feed sample grinding & extraction
• Multi-component analysis
• Method development & validation
• Trace level determination of between batch carry over

• HPLC
• LC-MS/MS
• UV Spectroscopy
• GC-TOF (MS)