Browsing 1994 Onderstepoort Journal of Veterinary Research, Volume 61, 1994 by Author "Du Preez, J.H."

Browsing 1994 Onderstepoort Journal of Veterinary Research, Volume 61, 1994 by Author "Du Preez, J.H."

Sort by: Order: Results:

  • Effect of heat-stress on conception in a dairy-herd model in the Natal highlands of South Africa 
    Du Preez, J.H.; Willemse, J.J.C.; Van Ark, H.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1994)
    Regression models are proposed for predicting conception rate in a dairy herd under South African and especially Natal conditions. Conception rate (CR%) was related to mean monthly temperature-humidity index (THI) by ...