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Benefits of urea-molasses block supplementation and symptomatic and tactical anthelmintic treatments of communally grazed indigenous goats in the Bulwer area, Kwazulu-Natal Province, South Africa.

M. F. Smith, L. Harrison, R. Krecek, 2007, Journal of the South African Veterinary Association.

Goatkeepers' animal health care manual

R. Krecek, R. Pearson, B. Letty, 2006 .