Inducing ovulation with oestradiol cypionate allows flexibility in the timing of insemination and removes the need for gonadotrophin-releasing hormone in timed AI protocols for dairy cows - Ferreira, R. M; Ayres, Henderson; Gimenes, Lindsay Unno; Torres, F. P; Lima, F. A; Veras, M. B; Guida, T. G; Sala, Rodrigo Vasconcellos; Baruselli, Pietro Sampaio (Reproduction, Fertility and Development, 2017)