The Effect of Goat Testicular Extract on The Sex Ratio of Guppy Fish (Poecilia reticulata). Agrikan Jurnal Agribisnis Perikanan, [S. l.], v. 14, n. 2, p. 343–349, 2021. DOI: 10.52046/agrikan.v14i2.797. Disponível em: https://jurnal.ummu.ac.id/index.php/agrikan/article/view/797. Acesso em: 9 oct. 2025.