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Search on :	VAN RYSSEN, J.B.J. [Author]
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van Ryssen, J.B.J. and Ndlovu, H. Ash from fireplaces at homesteads in rural regions of South Africa as potential source of minerals to goats. S. Afr. j. anim. sci., 2004, vol.34, no.5, p.111-113. ISSN 0375-1589

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van der Merwe, B.J. et al. Effect of method of sample preparation on ruminai in situ disappearance of dry matter and nitrogen in annual ryegrass in dairy cows. S. Afr. j. anim. sci., 2005, vol.35, no.2, p.126-134. ISSN 0375-1589

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Lukhele, M.S. and van Ryssen, J.B.J. The chemical composition and potential nutritive value of the foliage of four subtropical tree species in southern Africa for ruminants. S. Afr. j. anim. sci., 2003, vol.33, no.2, p.132-141. ISSN 0375-1589

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van Ryssen, J.B.J. A glance at achievements of SASAS and animal scientists in southern Africa over more than 50 years. S. Afr. j. anim. sci., 2018, vol.48, no.spe, p.801-807. ISSN 0375-1589

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Raphulu, T., Jansen van Rensburg, C. and van Ryssen, J.B.J. Assessing nutrient adequacy from the crop contents of free-ranging indigenous chickens in rural villages of the Venda region of South Africa. S. Afr. j. anim. sci., 2015, vol.45, no.2, p.143-152. ISSN 0375-1589

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Rautenbach, E., van Ryssen, J.B.J. and van Niekerk, W.A. Changes in nutrient composition of kikuyu foggage as winter progressed. S. Afr. j. anim. sci., Apr 2008, vol.38, no.4, p.342-349. ISSN 0375-1589

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Scholtz, M.M. et al. A South African perspective on livestock production in relation to greenhouse gases and water usage. S. Afr. j. anim. sci., 2013, vol.43, no.3, p.247-254. ISSN 0375-1589

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van Ryssen, J.B.J. Special issue: A balanced perspective on animal production, from environment to human health. S. Afr. j. anim. sci., 2013, vol.43, no.3, p.229-232. ISSN 0375-1589

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Courtman, C., van Ryssen, J.B.J. and Oelofse, A. Selenium concentration of maize grain in South Africa and possible factors influencing the concentration. S. Afr. j. anim. sci., 2012, vol.42, no.5, p.454-458. ISSN 0375-1589

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