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The resistance of Nelore and Canchim cattle to B. microplus was evaluated under natural conditions in São Paulo state, Brazil. 30 animals of each breed were used. 12 counts of engorged female ticks were performed at 28-day intervals on the left flank of each animal. Counts were transformed to Y =...

Oliveira, G. P.; Alencar, M. M.; Freitas, A. R.
Pesquisa Agropecuária Brasileira, 1989, 24, 10, pp 1267-1271