Expression of insulin-like growth factor family members and growth differentiation factor 9 on nelore and angus heifers with a low and high ovarian follicle count - Favoreto, M. G. [UNESP]; Ticianelli, J. S. [UNESP]; Loureiro, B. [UNESP]; Ereno, R. L. [UNESP]; Pupulim, A. G. [UNESP]; Buratini, J. [UNESP]; Barros, C. M. [UNESP] (CSIRO Publishing, 2013)