For farm use. This test is a fast, easy and convenient method to check a herd for mastitis. Developed at the University of California School of Veterinary Medicine, itdetects the increased leukocyte cell count in fresh milk which indicates the presence of mastitis. Best use is at the cow's side, where it can pinpoint the quarter secreting mastitic milk. Can also be used to test bulk milk if milk is very fresh and has been kept cold. Instructions, with illustrations, are sent with test supplies. Test kit comes complete with paddle and concentrate.