Effects on anionic salts in a pre-partum dairy ration on calcium metabolism

by C.J. Van Dijk, D.C. Lourens
Published 2001-07-01

The prevalence of bovine viral diarrhoea antibodies in selected South African dairy herds, and control of the disease

by G.M. Ferreira, D.C. Lourens, M. Van Vuuren
Published 2000-07-01

The effect of unrestricted milk feeding on the growth and health of Jersey calves

by J. L. Uys, D. C. Lourens, P. N. Thompson
Published 2011-04-01

Evaluation of oestrus observation and conception rates in suckling beef cows using whole milk progesterone concentration

by D.C. Lourens, P.N. Thompson, H.J. Bertschinger, M. Ameen
Published 2002-07-01

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