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The present study was conducted to compare the pregnancy rates of Nelore cows (Bos taurus indicus) inseminated at fixed-time and treated with new (IN) or once used (IR; reused) auricular releasing devices with 3 mg of norgestomet (Crestar) associated with the administration of norgestomet (NG) and...

Almeida, A. B.; Bertan, C. M.; Rossa, L. A. F.; Gaspar, P. dos S.; Binelli, M.; Madureira, E. H.
Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, Brazil
Brazilian Journal of Veterinary Research and Animal Science, 2006, 43, 4, pp 456-465