1. 北京市水产科学研究所, 北京 100068;2. 广西水产研究所, 广西 南宁 530021;3. 大连海洋大学 农业部海洋水产增养殖学重点开放实验室, 辽宁 大连 116023
张升利(1982−), 男, 工程师, 主要从事水产动物繁养殖技术研究. Tel: 13426476977; E-mail: zhangshengli998@163.com
辽宁省科技厅重大项目(2008203002).
1. Beijing Fisheries Research Institute, Beijing 10068, China;2. Guangxi Institute of Fisheries, Nanning 530021, China;3. Key Laboratory of Mariculture, Ministry of Agriculture, Dalian Ocean University, Dalian 116023, China
We evaluated the effects of starvation and subsequent re-feeding on the structure of digestive system in . We documented changes in morphological and histological structure by observation of paraffin-sectioned gut tissue. Groups of fish (mean weight 26.02±0.30 g) were starved for 5 (S5), 10 days. A control group was fed as normal. All fish were held at at (19±1) and 32±1 salinity. We observed changes in the morphological structure of individuals in groups . The gastric volume decreased and the gastric wall thinned; the tube wall of the intestine was thinner and transparent while the mesentery was shrunken. The hepatopancreas was atrophied and its color changed from pink to deep yellow. The changes in structure were more evident in groups S10. The height of the epithelial cells, gastric gland cells, and the secretory granules in the stomach all decreased and the cell boundary became blurred. There was a decrease in the height of the epithelial cells and the rugae in the intestine. The striated border also decreased in height, and was even absent in some individuals. We observed an increase in the number of goblet cells, the hepatic tissue was compacted, and there was a decrease in lipid volume and the number of secretory granules in hepatic cells, while the cell boundary become blurred. We observed some degree of recovery following resumption of feeding. Our results suggest that are able to tolerate 5–10 d starvation, beyond which irreparable damage is likely to occur to the histological structures of the digestive system.
张升利,梁拥军,孙向军,苏建通,姜志强,郭忠宝,马静.饥饿对星斑川鲽消化器官形态结构和组织学的影响[J].中国水产科学,2012,19(3):445-452
ZHANG Shengli, LIANG Yongjun, SUN Xiangjun, SU Jiantong, JIANG Zhiqiang, GUO Zhongbao, MA Jing. Effects of starvation and subsequent feeding on morphological and histological structure of digestive system in Platichthys stellatus[J]. Journal of Fishery Sciences of China,2012,19(3):445-452
