J.H. Du Preez

Parameters for the determination and evaluation of heat stress in dairy cattle in South Africa.

J.H. Du Preez · PubMed · 2000 · 101 citations

Agricultural Economics, Livestock Production, Education +16

Heat stress in dairy cattle and other livestock under southern African conditions. I. Temperature-humidity index mean values during the four main seasons.

J.H. Du Preez, W.H. Giesecke, P J Hattingh · PubMed · 1990 · 80 citations

Animal Physiology, Dairy Cattle, Engineering +14

The isolation and attenuation of a virus causing rhinotracheitis in turkeys in South Africa.

S.B. Buys, J.H. Du Preez, Hudson Peter J · PubMed · 1989 · 78 citations

Affected Turkeys, Allergy, Virus Epidemiology +13

Heat stress in dairy cattle and other livestock under southern African conditions. III. Monthly temperature-humidity index mean values and their significance in the performance of dairy cattle.

J.H. Du Preez, P J Hattingh, W.H. Giesecke et al. · PubMed · 1990 · 74 citations

Engineering, Animal Husbandry, Agricultural Economics +19

Swollen head syndrome in chickens: a preliminary report on the isolation of a possible aetiological agent.

S.B. Buys, J.H. Du Preez, H J · PubMed · 1989 · 70 citations

Possible Aetiological Agent, Pathology, Veterinary Research +16