(1)
Rocha, J. L. da; Barnabe, V. H.; Barnabe, R. C.; Madureira, E. H.; Oliveira, C. A. de; Visintin, J. A. Progesterone Levels in Fat-Eree Milk of Cows During Post Partum Period and Early Pregnancy Diagnosis.
Braz. J. Vet. Res. Anim. Sci. 1993,
30 (supl.), 243-247.
https://doi.org/10.11606/issn.1678-4456.bjvras.1993.52039.