Affiliation: | aNational Mastitis Reference Center, Kimron Veterinary Institute, P.O.B. 12 Bet Dagan 50250, Israel bInstitute of Animal Science, The Volcani Center, P.O.B. 6, Bet Dagan 50250, Israel cInstitute of Agricultural Engineering, The Volcani Center, P.O.B. 6, Bet Dagan 50250, Israel |