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R. R. Woolaston, Breeding livestock for reduced reliance on chemicals., vol. 27: Reproduction; fish breeding; genetics and the environment; genetics in agricultural systems; disease resistance; animal welf, pp. 145–152, 1998. (331.11 KB)
R. R. Woolaston, Gray, G. D., Albers, G. A. A., Piper, L. R., and Barker, J. S. F., Analysis for a major gene affecting parasite resistance in sheep., vol. XV. Beef cattle, sheep and pig genetics and breeding, fibre, fur and meat quality., pp. 131–134, 1990. (1.12 MB)