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R. P. Lewer and MacLeod, I. M., One- and two-stage selection indexes for Australian Merino sheep, incorporating visual selection criteria., vol. XV. Beef cattle, sheep and pig genetics and breeding, fibre, fur and meat quality., pp. 61–64, 1990. (1.3 MB)
R. P. Lewer, Ponzoni, R. W., Morgan, P. D., and Vanrenen, D. S., Performance recording for Merino sheep in Australia (Woolplan)., Proceedings of the World Congress on Genetics applied to Livestock Production, vol. IX. Breeding programs for dairy and beef cattle, water buffalo, sheep, and goats., pp. 645–649, 1986. (1.42 MB)