JBJ Van Ryssen

A South African perspective on livestock production in relation to greenhouse gases and water usage

MM Scholtz, JBJ Van Ryssen, HH Meissner et al. · South African Journal of Animal Science · 2013 · 58 citations · Full text

The chemical composition and potential nutritive value of the foliage of four subtropical tree species in southern Africa for ruminants

M.S. Lukhele, JBJ Van Ryssen · South African Journal of Animal Science · 2003 · 39 citations · Full text

Protein Deficiencies, Nutrition, Engineering +18

Assessing Nutrient Adequacy from the Crop Contents of Free-Ranging Indigenous Chickens in Rural Villages of the Venda Region of South Africa

Thomas Raphulu, Christine Jansen van Rensburg, JBJ Van Ryssen · South African Journal of Animal Science · 2015 · 27 citations · Full text

Nutrition, Engineering, Household Waste +18

The use of n-alkane markers to estimate the intake and apparent digestibility of ryegrass and Kikuyu by horses

DM Stevens, JBJ Van Ryssen, JP Marais · South African Journal of Animal Science · 2002 · 21 citations · Full text

Nutrition, Agricultural Economics, Education +18

Selenium concentration of maize grain in South Africa and possible factors influencing the concentration

Casey-Claire Courtman, JBJ Van Ryssen, A Oelofse · South African Journal of Animal Science · 2012 · 16 citations · Full text

Precision Agriculture, Engineering, Selenium Concentration +17