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(A) Total recovered COCs. Pens supplemented with a complexed form of trace minerals had a greater total number of recovered COCs than pens supplemented with a similar level of trace minerals from inorganic sources (P = 0.03). (B) Total recovered COCs meeting maturation criteria. Pens supplemented with a complexed form of trace minerals had a greater total number of recovered COCs that met maturation criteria (P = 0.05).
