Некоторые показатели гуморального и клеточного иммунитета молоди сома обыкновенного, переболевшего ихтиофтириозом

Abstract

The study of the immunological parameters of juvenile catfish Silurus glanis, who had ichthyophthyriosis. In the spring, 2 groups of yearlings of 100 sick individuals were seated in different nursery ponds. Before planting, one group was kept for an hour in a bath with a healing solution: 60 g of sodium chloride + 60 mg of furazolidone + 100 mg / l of methylene blue for 20 liters of water. No other group was treated. In the autumn, after fishing for ponds, catfish from both groups of signs of disease were not detected. Some indices of humoral and cellular immunity were studied in fish from each pond. The group of catfish, which was kept in the treatment solution, had higher indicators of the bacteriostatic activity of the blood serum and the proportion of mature segmented neutrophils in the leukogram; the proportion of immunodeficient individuals and the percentage of blast forms of myeloid cells (myelocytes) are lower. There were no differences in the phagocytic activity of neutrophils between fish from different ponds. The data obtained indicate a positive effect of applying a therapeutic solution to restore the functional state of humoral immunity.