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Scholtz, A.J., Cloete, S.W.P., Cloete, J.J.E., Kruger, A.C.M., Van Wyk, J.B. & Van der Linde, T.C.de K., 2011. Genetic parameters for breech strike indicator traits and yearling production traits in Merinos. Proc. Assoc. Advmt. Anim. Breed. Genet. 19, 175-178.