1. DeLaval Manufacturing; 11100 N. Congress Drive Kansas City MO 64153 U.S.A
2. Dept. of Food Science; Cornell Univ; Stocking Hall, 411 Tower Rd. Ithaca NY 14853 U.S.A
3. Cornell Univ; Ithaca NY 14853 U.S.A
4. Quality Milk Production Services; 240 Farrier Rd. Ithaca NY 14853 U.S.A
5. Animal Health Diagnostic Center; 602 Tower Rd. Ithaca NY 14853 U.S.A
6. GD Animal Health; Arnsbergstraat 7, P.O. Box 9 7400 AA Deventer the Netherlands