Ultrasonography for non-invasive sex identification and reproductive assessment in Nile tilapia (<i>Oreochromis niloticus</i>).

ABSTRACT: Sex identification and the selection of monosex male tilapia are crucial for tilapia aquaculture. In this study, we evaluated the application of ultrasonography as an alternative procedure for sex identification and reproductive assessment in Nile tilapia (Oreochromis niloticus). Ultrasonography was performed on 23 fish weighing 232-1,281 g to capture longitudinal and transverse images of the ovaries and testes. Female tilapia were identified by the presence of numerous small egg granules and gray or light gray ovarian tissue and male tilapia by the homogeneous echogenicity and uniform gray tubular appearance of the testes. These distinct echogenic patterns allowed for accurate differentiation between the female and male fish. Ultrasonography achieved a 95% accuracy in sex identific

SUBMITTER: Setthawong P 

PROVIDER: S-EPMC11497460 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature