Effect of experimental Diphyllobothrium dendriticum infection on the blood leucocyte pattern of brown trout at two temperature levels
نویسندگان
چکیده
Leucocyte composition in the peripheral blood of brown trout Salmo trutta m. lacustris (L.) aged 1+ was studied in relation to Diphyllobothrium dendriticum (Cestoda) infection at two temperature levels, heated about 15 °C and non-heated which decreased from 11 °C to 7 °C. Blood samples were taken from control and infected fish 12 weeks post infection. The D. dendriticum infection (1–6 per fish) had a significant increasing impact on lymphocyte and neutrophil counts at both temperature levels while thrombocytes were more numerous in control fish, particularly in non-heated water. The total leucocyte counts were not influenced by the D. dendriticum infection. The present water temperatures created differences only in thrombocyte and total leucocyte counts, which were increased in non-heated aquaria.
منابع مشابه
Growth, nutritional composition, and hematology of Arctic charr (Salvelinus alpinus) exposed to toxaphene and tapeworm (Diphyllobothrium dendriticum) larvae.
Toxaphene, an organochlorine pesticide, is the major contaminant of Arctic charr (Salvelinus alpinus) in the Canadian Arctic. The objective of this study was to investigate the combined effects of toxaphene exposure and infection by the larval stage of the cestode Diphyllobothrium dendriticum on fish growth, nutritional composition, and hematology. Hatchery-reared Arctic charr were subjected to...
متن کاملEffects of various feeding and starvation strategies on growth, hematological and biochemical parameters, and body composition of Caspian brown trout (Salmo caspius Kessler 1877) parr
This study was carried out to investigate the effects of starvation and feeding regimes on growth performance, haematological and biochemical parameters of blood and body composition of Caspian brown trout parr. For this purpose, 900 fish (average weight: 12.5±1 g) were stocked in 300-l tanks (18 tanks at a stocking rate of 50 fish in each tank) using an open system. Six experimental groups com...
متن کاملEffects of various feeding and starvation strategies on growth, hematological and biochemical parameters, and body composition of Caspian brown trout (Salmo caspius Kessler 1877) parr
This study was carried out to investigate the effects of starvation and feeding regimes on growth performance, haematological and biochemical parameters of blood and body composition of Caspian brown trout parr. For this purpose, 900 fish (average weight: 12.5±1 g) were stocked in 300-l tanks (18 tanks at a stocking rate of 50 fish in each tank) using an open system. Six experimental groups com...
متن کاملEffect of fish meal replacement with Spirulina Spirulina platensis on hematite-biochemical and immune response of Caspian brown trout (Salmo trutta caspius) juveniles
In this experiment, the effect of dietary Spirulina platensis on haemato-biochemical and immunity responses of Caspian brown trout (Salmo trutta caspious) juveniles was investigated. For this purpose, diets with five S. Platensis inclusion levels (control 0%, 2 %, 4%, 6% and 8% of diet fish meal) were prepared. Six hundred juveniles with an average initial weight of 11 ± 1.0 g were assigned to ...
متن کاملBlood parameters of Caspian brown trout (Salmo trutta caspius) fingerlings affected by dietary L-ascorbyl-2-polyphosphate
This study was aimed to evaluate the effect of L-ascorbyl-2-polyphosphate as a dietary ascorbic acid source on blood parameters of Caspian brown trout (Salmo trutta caspius), including red blood cell (RBC) count, white blood cell (WBC) and WBC differential. A total number of 600 Caspian brown trout (9.6±0.6 g) fingerlings were randomly distributed in triplicates among five treatments each conta...
متن کامل