Louvandini, H., Abdalla, A. L., Coop, R. L., Mc Manus, C. M. and Gennari, S. M. (2002) “Effect of dietary protein intake on calf resilience to Haemonchus placei infection”, Brazilian Journal of Veterinary Research and Animal Science, 39(5), pp. 227-232. doi: 10.1590/S1413-95962002000500002.