Trends in udder health and emerging mastitogenic pathogens in South African dairy herds

by I.M. Petzer, J. Karzis, J.C. Watermeyer, T.J. Van der Schans, R. Van Reenen
Published 2009-05-01

Intramammary antibiotic withdrawal periods for dairy goats compared to those for dairy cattle

by I.M. Petzer, E.F. Donkin, E. Du Preez, J. Karzis, T.J. Van der Schans, J.C. Watermeyer, R. Van Reenen
Published 2008-09-01

Intramammary infection rate during the dry period in cows that received blanket dry cow therapy : efficacy of 6 different dry-cow intra-mammary antimicrobial products

by I-M. Petzer, D.C. Lourens, T.J. Van der Schans, J.C. Watermeyer, R. Van Reenen, G.H. Rautenbach, P. Thompson
Published 2009-05-01

Value of tests for evaluating udder health in dairy goats: somatic cell counts, California Milk Cell Test and electrical conductivity

by I.M. Petzer, E.F. Donkin, E. Du Preez, J. Karzis, T.J. Van der schans, J.C. Watermeyer, R. Van Reenen
Published 2008-09-01