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Supplementation of selenium to sheep grazing kikuyu or ryegrass : I. Selenium status of unsupplemented sheep and animal performance upon supplementation
Van Ryssen, J.B.J.
;
Coertze, R.J. (Roelof Johannes)
;
De Villiers, J.F.
(
South African Society for Animal Science
,
1999
)
A glance at achievements of SASAS and animal scientists in southern Africa over more than 50 years
Van Ryssen, J.B.J.
(
South African Society for Animal Science
,
2018-09-26
)
Changes in nutrient composition of kikuyu foggage as winter progressed
Rautenbach, Esmari
;
Van Ryssen, J.B.J.
;
Van Niekerk, Willem A.
(
South African Society for Animal Science
,
2008
)
Organiese produksiestelsels in perspektief
Scholtz, Michiel
;
Van Ryssen, J.B.J.
;
Meissner, Heinz
;
Neser, Frikkie
(
Plaas Publishing
,
2013-07
)
Geographical distribution of the selenium status of herbivores in South Africa
Van Ryssen, J.B.J.
(
South African Society for Animal Science
,
2001
)
Selenium (Se) supplementation on the Se status of dairy cows in the Midlands of KwaZulu-Natal
Van Ryssen, J.B.J.
;
O'Dell, E.D.
(
South African Society for Animal Science
,
2006
)
Supplementation of selenium to sheep grazing kikuyu or ryegrass : II. Effect on selenium concentration in the grass and body tissues
Van Ryssen, J.B.J.
;
Coertze, R.J. (Roelof Johannes)
;
De Villiers, J.F.
(
South African Society for Animal Science
,
1999
)
Assessing nutrient adequacy from the crop contents of free-ranging indigenous chickens in rural villages of the Venda region of South Africa
Raphulu, Thomas
;
Jansen van Rensburg, Christine
;
Van Ryssen, J.B.J.
(
South African Society for Animal Science
,
2015-05-21
)
Time-dependent effect of selenium supplementation on the relationship between selenium concentrations in whole blood and plasma of sheep
Van Ryssen, J.B.J.
;
Coertze, R.J. (Roelof Johannes)
;
Smith, Marie F.
(
Elsevier
,
2013-05
)
Different levels of macadamia oil cake meal, and wood ash vs. feed lime as dietary sources of calcium on bone characteristics of slow-growing chickens
Van Ryssen, J.B.J.
;
Phosa, Mashilo Alpheus
;
Jansen van Rensburg, Christine
(
South African Society for Animal Science
,
2014-03-14
)
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Author
Van Ryssen, J.B.J. (11)
Coertze, R.J. (Roelof Johannes) (3)
De Villiers, J.F. (2)
Jansen van Rensburg, Christine (2)
Laker, M.C. (Michiel Christiaan), 1939- (1)
Meissner, H.H. (1)
Meissner, Heinz (1)
Neser, Frikkie (1)
O'Dell, E.D. (1)
Phosa, Mashilo Alpheus (1)
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Subject
Selenium (4)
Sheep (4)
Fertilized (2)
Kikuyu (2)
Parenteral (2)
Ryegrass (2)
Animal production (1)
Animal products (1)
Bone ash (1)
Bone strength (1)
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2010 - 2018 (6)
2000 - 2009 (3)
1999 - 1999 (2)
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