by van Ryssen, J B J, Bath, G F
Published in Journal of the South African Veterinary Association (26.03.2024)

by van Ryssen, JBJ, Webb, EC, Myburgh, JG
Published in Journal of the South African Veterinary Association (24.02.2023)

by Scholtz, M.M., Van Ryssen, J.B.J., Scholtz, M.M.
Published in South African journal of animal science (01.01.2013)

by Raphulu, T., Jansen van Rensburg, C., Van Ryssen, J.B.J.
Published in South African journal of animal science (01.01.2015)

by Van Ryssen, J.B.J., Courtman, C., Oelofse, A.
Published in South African journal of animal science (01.01.2012)

by Jansen van Rensburg, C., Phosa, M.A., Van Ryssen, J.B.J.
Published in South African journal of animal science (01.01.2014)

by Van Ryssen, JBJ, O’Dell, ED
Published in South African journal of animal science (28.11.2007)

by Van Ryssen, JBJ, Coertze, RJ, De Villiers, JF
Published in South African journal of animal science (13.07.2009)

by Mynhardt, H., van Ryssen, J.B.J., Coertze, R.J.
Published in Animal feed science and technology (01.01.2006)

by van Ryssen, J.B.J., Schroeder, G.E.
Published in Animal feed science and technology (30.06.2003)

by Van Ryssen, J.B.J.
Published in South African journal of animal science (01.01.2001)

by Lukhele, M.S., Van Ryssen, J.B.J.
Published in South African journal of animal science (01.01.2003)

by Cronjé, MC, van Ryssen, JBJ, Coertze, RJ
Published in South African journal of animal science (01.01.2006)

by Mavimbela, D.T., Van Ryssen, J.B.J.
Published in South African journal of animal science (01.01.2001)

by Van der Merwe, B.J., Dugmore, T.J., Morning, S.J., Van Ryssen, J.B.J., Thurtell, L.M.
Published in South African journal of animal science (01.01.2005)

by van Ryssen, J.B.J, Mavimbela, D.T
Published in Animal feed science and technology (01.04.1999)

by Stevens, D.M. (Natal Univ., Pietermaritzburg (South Africa). Animal and Poultry Science Dept.), Van Ryssen, J.B.J, Marais, J.P
Published in South African journal of animal science (2002)

by De Villiers, J.F. (KwaZulu-Natal Agriculture and Environmental Affairs Dept., Pietermaritzburg (South Africa)), Van Ryssen, J.B.J
Published in South African journal of animal science (01.01.2001)

by Mavimbela, D.T. (Swaziland Univ., Luyengo (Swaziland)), Webb, E.C, Van Ryssen, J.B.J, Bosman, M.J.C
Published in South African journal of animal science (2000)

by de Villiers, J.F., Coertze, R.J., Van Ryssen, J.B.J.
Published in South African journal of animal science (1999)