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Browsing Research Articles (Production Animal Studies) by UP Author

Browsing Research Articles (Production Animal Studies) by UP Author "Lourens, D.C. (Dirk Cornelius)"

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The effect of cow-level factors on colostrum quality, passive immunity and health of neonatal calves in a pasture-based dairy operation

Mulder, Riaan; Fosgate, Geoffrey Theodore; Tshuma, Takula; Lourens, D.C. (Dirk Cornelius) (CSIRO, 2018)

A study of 95 cows (19 primiparous and 76 multiparous) and their offspring was performed on a pasture-based dairy in the coastal region of South Africa. Collected data included weight changes during the dry period, colostrum ...
The effect of unrestricted milk feeding on the growth and health of Jersey calves

Uys, J.L.; Lourens, D.C. (Dirk Cornelius); Thompson, P.N. (Peter N.) (South African Veterinary Association, 2011-03)

This study was conducted to determine the effect of feeding high milk volumes on the growth rate, health and cross-sucking behaviour in group-fed Jersey calves. Three-day-old heifers (n = 120) in a seasonal calving dairy ...
Effective disease control

Lourens, D.C. (Dirk Cornelius) (Agri Connect, 2011-08)

In South-Africa, communicable diseases are a major cause of livestock losses and it is disconcerting that so many preventable diseases still frequently result in substantial financial losses.
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

Petzer, Inge-Marie; Lourens, D.C. (Dirk Cornelius); Van der Schans, Theodorus J.; Watermeyer, Johanna C.; Van Reenen, R.; Rautenbach, G.H.; Thompson, P.N. (Peter N.) (South African Veterinary Association, 2009)

The objectives of this study were to compare the efficacy of 6 different dry-cow intramammary antimicrobial products for the treatment and prevention of mastitis during the dry period in a well-managed high producing ...

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Browsing Research Articles (Production Animal Studies) by UP Author "Lourens, D.C. (Dirk Cornelius)"

Browsing Research Articles (Production Animal Studies) by UP Author "Lourens, D.C. (Dirk Cornelius)"

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