Progesterone-based timed AI protocols for Bos indicus cattle III: Comparison of protocol lengths von Prata, Alexandre B., Madureira, Guilherme, Robl, Adelino J., Ribeiro, Heuller S., Sagae, Milton, Elias, Manoel C.V., Pimenta, César, Barrios, Jhonny, Hartmman, Diego, Schneider, Althuir A., Sandoval, Gabriel A.F., Wiltbank, Milo C., Sartori, Roberto

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