The ABO of control fish was lined by a stratified epithelium (Figs 2, 4). The underlying connective tissues were also richly vascularized with a large number of fat cells (Fig. 2).
The ABO of control fish was lined by a stratified epithelium (Figs 2,4). The underlying connective tissues were also richly vascularized with alarge number of fat cells (Fig. 2).