ZARAZAGA, L. A.; GATICA, M. C.; GALLEGO-CALVO, L.; CELI, I.; GUZMAN, J. L. Short communication. Melatonin improves the reproductive performance of seasonal anoestrus goats exposed to buck effect during early post-partum. Spanish Journal of Agricultural Research, v. 11, n. 4, p. 997-1003, 22 Oct. 2013.