Page 365 - The Toxicology of Fishes
P. 365

Liver Toxicity                                                              345







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                         gata6, b  foxA3 b  gata6, b  foxA3 b  gata6, b  foxA3 b  gata6, b  foxA3 b  foxA3 b  foxA3 b  —  —  —  —  —  —  —  —  —  —





                               At ~86 hpf, a sole prehepatic vein (PHV), the primordia of which can be observed
                           atrium, ventricle, bulbus arteriosus are differentiated; swim bladder emerges at
                                 to form in the outer yolk epithelium at 24 hpf, begins to drain the caudal liver
                         Pineal anlage disc shaped on dorsal surface of third ventricle; sinus venosus,
















                                   into the left duct of Cuvier Left lateral longitudinal liver leaflet (L5) is well distinguished at 86 hpf Bile autofluorescence in gallbladder first observed at 88 hpf; onset of bile  synthesis suspected to be earlier Somite formation completed; air bladder vacuolar body at third somites; kidneys  bilateral at first somites  Tubular spinal chord apparent Gut tube and pericardium distinguished; pericardial cavity forms; teeth are  visible; linear gut tub




                             third somite                     3.3 mm                            translocation








                         Pineal gland   Hepatic vein  L5 phenotype  Bile synthesis  Somites complete  Spinal chord  Gut/pericardium  Spleen   Hatching  Peristalsis  Phase I   metamorphosis  Pectoral fin activity/   immotility  Alimentary canal   Respiration  Phase II   metamorphosis  Phase II   metamorphosis






                         74    86    86  88                 —                    —
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                         34    35    35  —                  —                    —
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                         2     10    10  —                  —                    —
                                            5     12  —                    —        —

                         3                  4     5  7      8              9        10
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