Bisschop, J.H.R.; Malan, A.I.; Steyn, H.P.; Laurence, G.B.; Du Toit, P.J.
(The Government Printer, Pretoria, 1939)
The results are presented of an experiment to ascertain whether a regular supplement of bonemeal given to calves up to weaning age would be beneficial to their growth and development, in comparison with a comparable group ...