Identification and Expression of vitellogenin gene in the Gouramy (Osphronemous Gourammy) under photoperiods manipulationNorman Arie Prayogo, Asrul Sahri Siregar, Purnama Sukardi, Dewi Nugrayani, Anandita Ekasanti and Riviani Yasumasa BesshoE3S Web Conf., 47 (2018) 02001DOI: https://doi.org/10.1051/e3sconf/20184702001