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All Journal Asian Journal of Aquatic Sciences
Siregar, Morina Riauwaty
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Agriculture, Biological Sciences & Forestry

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BLOOD DESCRIPTION OF STRIPED CATFISH (Pangasianodon hypophthalmus) MAINTAINED BY AQUAPONIC SYSTEM AND PHOTOPERIOD MANIPULATION Saputra, Raja Darmawan; Siregar, Morina Riauwaty; Windarti, Windarti
Asian Journal of Aquatic Sciences Vol. 5 No. 3 (2022): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

Environmental conditions and nutrient input greatly affect the physiological condition of fish. The growth of Pangasianodon hypophthalmus is improved by rearing it in short photoperiod. To maintain fish health, water quality must be maintained by applying aquaponics. The application of an aquaponic system can maintain water quality. To understand the blood condition of P.hypophthalmus reared in an aquaponic system and manipulated of photoperiod has been conducted in June-August 2021. The fish was reared in a bucket of 100 L water, 30 fishes/bucket (6-8 cm TL). Treatment with aquaponics system and filters as well as 24-hour dark photoperiod and natural photoperiod. The parameters measured were the erythrocytes total, leukocytes total, hematocrit, leukocrit, and leukocyte differential of P. hypophthalmus. The result showed that in general the blood condition of the fish there was no abnormality. Differentiation leukocytes are still relatively normal. The blood condition of all fish treated were erythrocyte total was 1.76-1.85 x106 cells/mm3, leucocyte was 5.45-5.66 x104 cells/mm3, hematocrit were 21.3-37.2% and leukocrit were 0.5-1 %. Based on the data obtained, it can be concluded that with aquaponic system and manipulated photoperiod do not negatively affect the health status of fish in general.
KIDNEY AND LIVER HISTOPATHOLOGY OF STRIPED CATFISH (Pangasianodon hypophthalmus) INFECTED WITH Edwardsiella tarda Siburian, Melin; Syawal, Henni; Siregar, Morina Riauwaty
Asian Journal of Aquatic Sciences Vol. 5 No. 3 (2022): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

This research was conducted in April – June 2021in the Laboratory of Parasites and Fish Diseases, Faculty of Fisheries and Marine, Universitas Riau. Histological preparations were carried out at the Bukittinggi Veterinary Center (BVet). The aim of this study was to analyze the kidney structure of striped catfish (P.hypophthalmus) infected with Edwardsiella tarda with different bacterial densities. The benefit of this research is to provide information about changes in the structure of kidney tissue due to infection with E.tarda, so that later treatment solutions can be sought. The method used was an experimental method with a completely randomized design (CRD) consisting of 4 treatment levels and 3 replications. The treatments applied were P0 (fish not infected with E.tarda), P1 (fish infected with E.tarda at a density of 106 CFU/mL), P2 (107 CFU/mL), and P3 (108 CFU/mL). Striped catfish (P.hypophthalmus) used are 8-12 cm in size with a density of 1 fish/3 L. Infection is done by injection in the intraperitoneal as much as 0.1 mL/fish. The results of the study found that clinical symptoms caused by dull and protruding eyes, dull body surface color, flaky fins, body surface wounds, and bleeding. In histopathological observation, the kidneys with different bacterial densities experienced the highest damage at P3 (108 CFU/mL), namely necrosis, hemorrhage, and hypertrophy.
Co-Authors Henni Syawal Saputra, Raja Darmawan Siburian, Melin Windarti Windarti