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Vitamin A (VA) is an essential nutrient in fish. VA is involved in a large spectrum of biological processes. One of the most important functions of VA is to control embryonic development in animals. In mammals, organogenesis is completed during embryogenesis. In contrast, most marine fish larvae are in a comparatively immature state at hatching and undergo organogenesis during the exogenous feeding...
The Asian yellow pond turtle, Mauremys mutica (Cantor), is a potential aquaculture target in China owing to the higher values for food and remedy than other species of turtle. In this study, color and morphological changes of fertilized eggs were observed during embryogenesis, and the effects of incubation temperature on embryonic development were analyzed. Both calcium layer and membrane layer are...
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