Reinecke, R.K.; Kirkpatrick, R.; Kriel, Anna M.D.; Frank, F.; Verwoerd, Daniel Wynand
(Published by the Government Printer, Pretoria., 1989)
Thirteen groups of 4 South African mutton Merinos grazed for 4 weeks with the flock on Kikuyu pastures and were slaughtered for total and differential worm counts at necropsy. Subsequently 12 groups of 8 week tracers grazed ...