Razi Vaccine & Serum Research Institute Veterinary Research & Biological Products 3041-9417 30 3 2017 09 23 Study of chromatophore cells histological changes in skin of Yellowfin Seabream (Acanthopagrus latus) after exposure to Aeromonas hydrophila Study of chromatophore cells histological changes in skin of Yellowfin Seabream (Acanthopagrus latus) after exposure to Aeromonas hydrophila 246 251 109880 10.22092/vj.2017.109880 FA F. Azadbakht Department Sea Biology, Faculty of Marine & Ocean Sciences, Khoramshahr Marine Science and Technology University. S. Shirali Department Sea Biology, Faculty of Marine & Ocean Sciences, Khoramshahr Marine Science and Technology University M.T. Ronagh Department Sea Biology, Faculty of Marine & Ocean Sciences, Khoramshahr Marine Science and Technology University E. Zamani Department Sea Biology, Faculty of Marine & Ocean Sciences, Khoramshahr Marine Science and Technology University. Journal Article 2016 09 15 The aim of this study was to investigat the histological changes of chromatophore cells in Yellowfin Seabream Acanthopagrus latus, after exposure to the Aeromonas hydrophila. In this regard, seventy fish were divided into three groups, one group didn't affect by bacteria and therefore was considered as control group. Other two groups were exposed to 103 and 106 concentration in immersion way. Fishes were kept under experimental condition for 21 days. Tissue samples were taken from skin at the 0, 3, 7, 14 and 21 days of experiment. The samples were fixed in 10% neutral buffered formalin. Tissue sections stained with hematoxylin and eosin. According to the results, histometrical studies in both groups (103, 106) compared to control group showed that thickness of chromatophore cells layer was decreased significantly (p<0.05). The result showed that tissue structure and size of chromatophore cells which are important cells of fish skin are able to change with the infection caused by the bacterium. The aim of this study was to investigat the histological changes of chromatophore cells in Yellowfin Seabream Acanthopagrus latus, after exposure to the Aeromonas hydrophila. In this regard, seventy fish were divided into three groups, one group didn't affect by bacteria and therefore was considered as control group. Other two groups were exposed to 103 and 106 concentration in immersion way. Fishes were kept under experimental condition for 21 days. Tissue samples were taken from skin at the 0, 3, 7, 14 and 21 days of experiment. The samples were fixed in 10% neutral buffered formalin. Tissue sections stained with hematoxylin and eosin. According to the results, histometrical studies in both groups (103, 106) compared to control group showed that thickness of chromatophore cells layer was decreased significantly (p<0.05). The result showed that tissue structure and size of chromatophore cells which are important cells of fish skin are able to change with the infection caused by the bacterium. https://vj.areeo.ac.ir/article_109880_65a94aaa392f2db7d7b2faf1c9e4f447.pdf