5 research outputs found
Can We Optimize Arc Discharge and Laser Ablation for Well-Controlled Carbon Nanotube Synthesis?
Infection Rate of Fish of the <i>Cypriniidae</i> Family by Helminth Larvae of the <i>Opisthorchiidae</i> Family in the Seym and Psel rivers Basins in Kursk Region
The purpose of the research is to study of the infection rate of freshwater mollusks and carp fish by trematodes transmitted by fish in the Psel and Seym basins in the Kursk region.Materials and methods. Helminthological material was collected from caught mollusks and fish. Mollusks were explored by the methods of life-time diagnostics and compression, and the fish by the method of compressing the spinal muscles and microscopic examination according to the method commonly used in helminthology. It was examined 200 specimens of mollusks and 1030 specimens of 6 fish species from the Cyprinidae family, from underyearling to two years of age. The species composition of trematodes was determined by identification guide.Results and discussion. Totally 4 species of helminths belonging to the Opisthorchidae: Opisthorchis felineus, Pseudamphistomum truncatum, Metorchis bilis and M. xanthosomus were identified. The extensiveness of infection by the larvae of O. felineus varied from 6.0 to 14.3 % in bleak, and 9.1% in red-eye. P. truncatum cysts were found only in bleak (8.0β11.1 %). The larvae M. bilis were found in 4 species of fish with extensiveness of infection from 5.6 to 50.0 %. 5 species of fish were infected by metacercaria M. xanthosomus (11.8β64.7 %). Epidemiological significance for humans have the first three species of the identified trematodes. The rate of fish infection indicates that the main source of opisthorchid eggs entering the examined river basins are wild and domestic birds, as well as semiaquatic mammals
ΠΠ°ΡΠ°ΠΆΠ΅Π½Π½ΠΎΡΡΡ ΡΡΠ± ΡΠ΅ΠΌΠ΅ΠΉΡΡΠ²Π° Cypriniidae Π»ΠΈΡΠΈΠ½ΠΊΠ°ΠΌΠΈ Π³Π΅Π»ΡΠΌΠΈΠ½ΡΠΎΠ² ΠΈΠ· ΡΠ΅ΠΌΠ΅ΠΉΡΡΠ²Π° Opisthorchiidae Π² Π±Π°ΡΡΠ΅ΠΉΠ½Π°Ρ ΡΠ΅ΠΊ Π‘Π΅ΠΉΠΌ ΠΈ ΠΡΠ΅Π» Π½Π° ΡΠ΅ΡΡΠΈΡΠΎΡΠΈΠΈ ΠΡΡΡΠΊΠΎΠΉ ΠΎΠ±Π»Π°ΡΡΠΈ
The purpose of the research is to study of the infection rate of freshwater mollusks and carp fish by trematodes transmitted by fish in the Psel and Seym basins in the Kursk region.Materials and methods. Helminthological material was collected from caught mollusks and fish. Mollusks were explored by the methods of life-time diagnostics and compression, and the fish by the method of compressing the spinal muscles and microscopic examination according to the method commonly used in helminthology. It was examined 200 specimens of mollusks and 1030 specimens of 6 fish species from the Cyprinidae family, from underyearling to two years of age. The species composition of trematodes was determined by identification guide.Results and discussion. Totally 4 species of helminths belonging to the Opisthorchidae: Opisthorchis felineus, Pseudamphistomum truncatum, Metorchis bilis and M. xanthosomus were identified. The extensiveness of infection by the larvae of O. felineus varied from 6.0 to 14.3 % in bleak, and 9.1% in red-eye. P. truncatum cysts were found only in bleak (8.0β11.1 %). The larvae M. bilis were found in 4 species of fish with extensiveness of infection from 5.6 to 50.0 %. 5 species of fish were infected by metacercaria M. xanthosomus (11.8β64.7 %). Epidemiological significance for humans have the first three species of the identified trematodes. The rate of fish infection indicates that the main source of opisthorchid eggs entering the examined river basins are wild and domestic birds, as well as semiaquatic mammals.Π¦Π΅Π»Ρ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ: ΠΈΠ·ΡΡΠ΅Π½ΠΈΠ΅ Π·Π°ΡΠ°ΠΆΠ΅Π½Π½ΠΎΡΡΠΈ ΠΏΡΠ΅ΡΠ½ΠΎΠ²ΠΎΠ΄Π½ΡΡ
ΠΌΠΎΠ»Π»ΡΡΠΊΠΎΠ² ΠΈ ΠΊΠ°ΡΠΏΠΎΠ²ΡΡ
ΡΡΠ± ΡΡΠ΅ΠΌΠ°ΡΠΎΠ΄Π°ΠΌΠΈ, ΠΏΠ΅ΡΠ΅Π΄Π°ΡΡΠΈΠΌΠΈΡΡ ΡΠ΅ΡΠ΅Π· ΡΡΠ±Ρ Π² Π±Π°ΡΡΠ΅ΠΉΠ½Π°Ρ
ΡΠ΅ΠΊ ΠΡΠ΅Π» ΠΈ Π‘Π΅ΠΉΠΌ Π½Π° ΡΠ΅ΡΡΠΈΡΠΎΡΠΈΠΈ ΠΡΡΡΠΊΠΎΠΉ ΠΎΠ±Π»Π°ΡΡΠΈ.ΠΠ°ΡΠ΅ΡΠΈΠ°Π»Ρ ΠΈ ΠΌΠ΅ΡΠΎΠ΄Ρ. ΠΠ΅Π»ΡΠΌΠΈΠ½ΡΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΠΉ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π» ΡΠΎΠ±ΠΈΡΠ°Π»ΠΈ ΠΈΠ· ΠΎΡΠ»ΠΎΠ²Π»Π΅Π½Π½ΡΡ
ΠΌΠΎΠ»Π»ΡΡΠΊΠΎΠ² ΠΈ ΡΡΠ±. ΠΠΎΠ»Π»ΡΡΠΊΠΎΠ² ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π»ΠΈ ΠΌΠ΅ΡΠΎΠ΄Π°ΠΌΠΈ ΠΏΡΠΈΠΆΠΈΠ·Π½Π΅Π½Π½ΠΎΠΉ Π΄ΠΈΠ°Π³Π½ΠΎΡΡΠΈΠΊΠΈ ΠΈ ΠΊΠΎΠΌΠΏΡΠ΅ΡΡΠΈΠΈ, ΡΡΠ±Ρ β ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ ΠΊΠΎΠΌΠΏΡΠ΅ΡΡΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΡΠΏΠΈΠ½Π½ΡΡ
ΠΌΡΡΡ ΠΈ ΠΌΠΈΠΊΡΠΎΡΠΊΠΎΠΏΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ ΠΏΠΎ ΠΎΠ±ΡΠ΅ΠΏΡΠΈΠ½ΡΡΠΎΠΉ Π² Π³Π΅Π»ΡΠΌΠΈΠ½ΡΠΎΠ»ΠΎΠ³ΠΈΠΈ ΠΌΠ΅ΡΠΎΠ΄ΠΈΠΊΠ΅. ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΎ 200 ΡΠΊΠ·. ΠΌΠΎΠ»Π»ΡΡΠΊΠΎΠ² ΠΈ 1030 ΡΠΊΠ·. ΡΡΠ± 6 Π²ΠΈΠ΄ΠΎΠ² ΠΈΠ· ΡΠ΅ΠΌΠ΅ΠΉΡΡΠ²Π° Cyprinidae Π² Π²ΠΎΠ·ΡΠ°ΡΡΠ΅ ΠΎΡ ΡΠ΅Π³ΠΎΠ»Π΅ΡΠΎΠΊ Π΄ΠΎ Π΄Π²ΡΡ
Π»Π΅Ρ. ΠΠΈΠ΄ΠΎΠ²ΠΎΠΉ ΡΠΎΡΡΠ°Π² ΡΡΠ΅ΠΌΠ°ΡΠΎΠ΄ ΡΡΡΠ°Π½Π°Π²Π»ΠΈΠ²Π°Π»ΠΈ ΠΏΠΎ ΠΎΠΏΡΠ΅Π΄Π΅Π»ΠΈΡΠ΅Π»Ρ.Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ ΠΈ ΠΎΠ±ΡΡΠΆΠ΄Π΅Π½ΠΈΠ΅. ΠΡΠ΅Π³ΠΎ Π±ΡΠ»ΠΎ Π²ΡΡΠ²Π»Π΅Π½ΠΎ 4 Π²ΠΈΠ΄Π° Π³Π΅Π»ΡΠΌΠΈΠ½ΡΠΎΠ², ΠΎΡΠ½ΠΎΡΡΡΠΈΡ
ΡΡ ΠΊ ΡΠ΅ΠΌΠ΅ΠΉΡΡΠ²Ρ Opisthorchidae: Opisthorchis felineus, Pseudamphistomum truncatum, Metorchis bilis ΠΈ M. xanthosomus. ΠΠΊΡΡΠ΅Π½ΡΠΈΠ²Π½ΠΎΡΡΡ ΠΈΠ½Π²Π°Π·ΠΈΠΈ Π»ΠΈΡΠΈΠ½ΠΊΠ°ΠΌΠΈ O. felineus ΠΊΠΎΠ»Π΅Π±Π°Π»Π°ΡΡ Ρ ΡΠΊΠ»Π΅ΠΈ ΠΎΡ 6,0 Π΄ΠΎ 14,3 %, Ρ ΠΊΡΠ°ΡΠ½ΠΎΠΏΠ΅ΡΠΊΠΈ 9,1 %. Π¦ΠΈΡΡΡ P. truncatum Π±ΡΠ»ΠΈ Π½Π°ΠΉΠ΄Π΅Π½Ρ Π»ΠΈΡΡ Ρ ΡΠΊΠ»Π΅ΠΈ (8,0β11,1 %). ΠΠΈΡΠΈΠ½ΠΊΠΈ M. bilis Π²ΡΡΡΠ΅ΡΠ°Π»ΠΈΡΡ Ρ 4 Π²ΠΈΠ΄ΠΎΠ² ΡΡΠ± Ρ ΡΠΊΡΡΠ΅Π½ΡΠΈΠ²Π½ΠΎΡΡΡΡ ΠΈΠ½Π²Π°Π·ΠΈΠΈ ΠΎΡ 5,6 Π΄ΠΎ 50,0 %. ΠΠ΅ΡΠ°ΡΠ΅ΡΠΊΠ°ΡΠΈΡΠΌΠΈ M. xanthosomus Π±ΡΠ»ΠΈ ΠΈΠ½Π²Π°Π·ΠΈΡΠΎΠ²Π°Π½Ρ 5 Π²ΠΈΠ΄ΠΎΠ² ΡΡΠ± (11,8β64,7 %). ΠΠ· Π²ΡΡΠ²Π»Π΅Π½Π½ΡΡ
ΡΡΠ΅ΠΌΠ°ΡΠΎΠ΄ ΡΠΏΠΈΠ΄Π΅ΠΌΠΈΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠ΅ Π·Π½Π°ΡΠ΅Π½ΠΈΠ΅ Π΄Π»Ρ ΡΠ΅Π»ΠΎΠ²Π΅ΠΊΠ° ΠΈΠΌΠ΅ΡΡ ΠΏΠ΅ΡΠ²ΡΠ΅ ΡΡΠΈ Π²ΠΈΠ΄Π°. Π£ΡΠΎΠ²Π΅Π½Ρ ΠΈΠ½Π²Π°Π·ΠΈΡΠΎΠ²Π°Π½Π½ΠΎΡΡΠΈ ΡΡΠ± ΡΠΊΠ°Π·ΡΠ²Π°Π΅Ρ Π½Π° ΡΠΎ, ΡΡΠΎ ΠΎΡΠ½ΠΎΠ²Π½ΡΠΌ ΠΈΡΡΠΎΡΠ½ΠΈΠΊΠΎΠΌ ΠΏΠΎΡΡΡΠΏΠ»Π΅Π½ΠΈΡ ΡΠΈΡ ΠΎΠΏΠΈΡΡΠΎΡΡ
ΠΈΠ΄ Π² ΠΎΠ±ΡΠ»Π΅Π΄ΠΎΠ²Π°Π½Π½ΡΠ΅ Π±Π°ΡΡΠ΅ΠΉΠ½Ρ ΡΠ΅ΠΊ ΡΠ²Π»ΡΡΡΡΡ Π΄ΠΈΠΊΠΈΠ΅ ΠΈ Π΄ΠΎΠΌΠ°ΡΠ½ΠΈΠ΅ ΠΏΡΠΈΡΡ, Π° ΡΠ°ΠΊΠΆΠ΅ ΠΎΠΊΠΎΠ»ΠΎΠ²ΠΎΠ΄Π½ΡΠ΅ ΠΌΠ»Π΅ΠΊΠΎΠΏΠΈΡΠ°ΡΡΠΈΠ΅