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The Onderstepoort Journal of Veterinary Research|December 1, 1986
A high performance liquid chromatographic method for the fluorimetric determination of lactose, galactose and glucose in normal and abnormal milk of cowsZ E Kowalski, W H GieseckeThe Onderstepoort Journal of Veterinary Research|September 1, 1987
The pathogenesis of heartwaterJ L Du Plessis, L Malan, Z E KowalskiThe Onderstepoort Journal of Veterinary Research|March 1, 1990
Udder health implications of premature bovine mammary regression. I. Clinical, subclinical and reducing-sugar changes in milk during 168 hours of suspended milking in mid-lactationW H Giesecke, P A Korybut-Woroniecki, Z E KowalskiThe Onderstepoort Journal of Veterinary Research|March 1, 1990
Udder health implications of premature bovine mammary regression. II. Collateral intramammary reactions in quarters milked normally during 168-hour milk stasis in opposite quartersW H Giesecke, P A Korybut-Woroniecki, Z E KowalskiJournal of the South African Veterinary Association|June 1, 1990
Initial and developed free fatty acid concentrations in milk from paired normal and septic subclinically mastitic udder quartersL W Van den Heever, Z E Kowalski, M OlivierThe Onderstepoort Journal of Veterinary Research|September 1, 1984
Plasminogen activator activity in secretions from clinically normal, mastitic, lactating and dried-off udders of dairy cowsZ E Kowalski, R C Franz, W J Coetzee, et al.Pageof 1