Odendaal, M.W.; Visser, J.J.; Bergh, N.; Botha, W.J.S.; Verwoerd, Daniel Wynand
(Pretoria : The Government Printer, 1989)
Lambs in different stages of development of active immunity against Clostridium perfringens type D were treated with partially purified immunoglobulin in an attempt to superimpose a passive immunity on an existing or ...