Effects of different supplemental soya bean oil levels on the performance of prepubertal Saanen goats: oestrogen and progesterone release - Bomfim, G. F; Merighe, Giovana Krempel Fonseca; Oliveira, S. A; Rodrigues, A D; Augusto, L; Teixeira, I. A. M. A; Resende, Kleber Tomas de; Negrão, João Alberto (Journal of Animal Physiology and Animal Nutrition, 2016)