Intestine Villi Morphology of Black Sea Trout (Salmo labrax Pallas, 1814)

This study was conducted to determine the effect of age, sex and weight on the middle intestine villi morphology of fifth-generation Black Sea trout (Salmo trutta labrax Pallas, 1811). The fish were kept in the freshwater ponds (June-October) and marine cages (November-May) to provide the life cycle of species. Intestine tissue samples were taken during period when fish were kept in marine cages. According to the results obtained, middle intestine villi morphology changed depending on age (1, 2, 3, 4 and 5 years old) and different live weight of similar ages (16 months old). The lowest intestine villi development was obtained in 1 years old fish. This was followed by 2 years old fish. The highest intestine villi development was obtained in 3 years old fish. Besides, intestine villi development of high weighted fish was higher than those of low weighted fish. However, it was found that middle intestine villi morphology didn’t changed depending on sex.