New On Farm Test For Antibiotics

New On Farm Test For Antibiotics SPECIALTY/SERVICES Specialty/Services 7-5-15 Newest management tool for dairy-men is the "Delvotest Farm Kit" that lets you check to make sure milk from a previously treated cow is free from antibiotic residues before adding it to the bulk tank. The kit from GB Industries Inc., Charlotte, N.C., is "quick and accurate" and costs only $1.90 per milk sample to test. It includes 10 ampules containing spores of a test strain that will not grow in the presence of penicillin and 14 other antibiotics that could appear in the milk. The kit also includes nutrient tablets, a drying agent, foam liner, tweezers, dosing syringe to pull the milk sample, and syringe tips. You'll also need an electric block heater to heat the samples or water bath. The testing procedure involves taking a .1 ml. sample of milk from the treated cow and placing it in an ampule into which you've placed, with tweezers, one of the nutrient tablets. Next, place the ampule in the block heater, set at 149? F, for 2 1/2 hours. After 2 1/2 hours, you can tell by the color if the milk contains antibiotics. A yellowish color indicates that antibiotic residues are below the lowest detection limit, while a purple color means detectable antibiotic residues are present in the milk. The 10 ampule kit sells for $18.75, plus shipping. The block heater, capable of heating 8 ampules at once, sells for $95. For more information, contact: FARM SHOW Followup, GB Fermentation Industries, Inc., P.O. Box 241068, Charlotte, N.C. 28224 (ph 704 527-9000).

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