Siamese gourami (Trichogaster pectoralis) live commonly in the lakes, rivers and swamps, especially in waters overgrown with aquatic plants. Spawning is influenced by internal and external factors, one of internal factors is the gonadotropin hormone which can be obtained from ovaprim. sGnRH-a in ovaprim is one of the synthetic hormones that can be used to stimulate spawning so that it can accel…