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Faculty of Natural and Agricultural Sciences
School of Agricultural and Food Sciences
Animal and Wildlife Sciences
   
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Van Ryssen, JBJ
BSc(Agric)(Pret) MSc(Agric) PhD(Natal) - Professor

Contact details
Research interests
Research output

Contact details:

Telephone number: 012 420 3265
Fax number: 012 420 3290
E-mail address: jvryssen@postino.up.ac.za

Research interests:

Nutrition: The dietary requirements of animals

Animal and wildlife production systems and management

Research output:

Research articles in refereed specialist journals

De Villiers JF, Van Ryssen JBJ: 2001. Performance responses of lambs of various ages to Italian ryegrass ( Lolium multiflorum) fertilized with various levels of nitrogen. South African Journal of Animal Science, 31(3), pp 143-149.

Mavimbela DT, Van Ryssen JBJ: 2001. Effect of dietary molasses on the site and extent of digestion of nutrients in sheep fed broiler litter. South African Journal of Animal Science, 31(1), pp 33-39.

Van Ryssen JBJ: 2001. Geographical distribution of the selenium status of herbivores in South Africa. South African Journal of Animal Science, 31(1), pp 1-8.

Webb EC, Van Ryssen JBJ, Erasmus MEA, McCrindle CME: 2001. Copper, manganese,cobalt and selenium in liver samples from African buffulo (Syncerus caffer) in the Kruger National Park. Journal of Environmental Monitoring, 3, pp 583-585.