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Mating structure for a single sire family in the Awassi × Merino resource population. A = Awassi, M = Merino; in Phases 3 and 4, ewes are brought in from other sire families, shown as the AMM* and AM_AMM*; the other three sire families have similar mating structures, again with cross-family matings in Phases 3 and 4.
