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Neuropeptide Y (NPY) is a 36 amino acid peptide with a direct action on food intake and growth. This study assessed the effect of NPY administration by immersion on growth of Clarias gariepinus fry. The results of the experiment showed that the weight increase in the NPY group was 87% and 64% greater than the weight in the control group after 18 and 30days, respectively. The length increase in the...
Although elevated plasma cortisol levels and a reduction in food intake are common features of the response to stress in fish, the potential role of cortisol in the regulation of food intake in these animals is poorly understood. In this study, goldfish (Carassius auratus) were fed ad libitum for 21 days diets prepared to contain 0 (Control), 50 (Low) or 500 (High) μg cortisol/g of food. While feeding...
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