Malan, A.I.; Du Toit, P.J.; Groenewald, J.W.; DuToit, P.J.
(Pretoria : The Government Printer, 1940)
1. Two groups of 10 merino ewes were fed the same adequate
basal ration with the exception that one group received an addition of 0.05 gms. each daily of potassium iodide.
2. A slight depression of weight and greater ...