The effects of urea supplementation on production and parasitological responses of sheep infected with Haemonchus contortus and Trichostrongylus colubriformis

Author: Knox M.R.   Steel J.W.  

Publisher: Elsevier

ISSN: 0304-4017

Source: Veterinary Parasitology, Vol.83, Iss.2, 1999-06, pp. : 123-135

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Abstract