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All Journal Jurnal Mina Sains Journal of Aquaculture and Fish Health
Kumalasari, Ditta Putri
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Pathology of Silver Rasbora (Rasbora argyrotaenia) after Experi-mentally Infection with Edwardsiella tarda : Edwardsiellosis in Silver Rasbora Nindi, Inda Arsyi; Febrina, Melinda; Rahmawati, Anggi Rusita; Ulkhaq, Mohammad Faizal; Tjahjaningsih, Wahju; Kusdarwati, Rahayu; Pardede, Maria Agustina; Kumalasari, Ditta Putri; Loh, Jiun-Yan
Journal of Aquaculture and Fish Health Vol. 14 No. 2 (2025): JAFH Vol. 14 No. 2 June 2025
Publisher : Department of Aquaculture

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jafh.v14i2.70433

Abstract

The high demand for silver rasbora (Rasbora argyrotaenia) from the wild had led to declining resources, making fish cultivation necessary. One of the challenges in fish farming is diseases caused by bacteria, such as Edwardsiella tarda, which can lead to Edwardsiellosis and result in mass mortality among fish. This study aimed to analyze the pathology of silver rasbora after experimental infection with E. tarda. Four hundred silver rasbora (5.4±7 cm and 0.47±2.63 g) were reared in twenty aquariums. The treatments consisted of four groups with five replicates, including immersion in E. tarda 1011 CFU/ml (P1), 1012 CFU/ml (P2), 1013 CFU/ml (P3), and a negative control (without E. tarda) (P0) for a 14-days rearing period. Parameters observed included survival rate, stress responses (plasma cortisol, blood glucose, and ventilation rate); hematology profile (total erythrocytes, total leukocytes, differential leukocytes, and hemoglobin levels), histopathological alterations in organs, survival rate, and clinical symptoms. The results showed that immersion in E. tarda did not affect fish mortality. However, other parameters, including hematological profile, stress responses, and histopathological alterations, showed increased values and several pathological changes, yet remained within normal limits.
Identification, Prevalence and Intensity of Ectoparasite Protozoa in Litopenaeus vannamei at Intensive and Traditional Shrimp Pond Ambarwati, Dewi; Pardede, Maria Agustina; Puspita Sari, Putri; Kurnia Agesti, Elmira; Aufa, In'amul; Abdullah, Taufiq; Kumalasari, Ditta Putri
JURNAL MINA SAINS Vol. 11 No. 1 (2025): Jurnal Mina Sains
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/jmss.v11i1.17413

Abstract

This study investigated the prevalence, diversity, and intensity of ectoparasitic protozoa infecting Litopenaeus vannamei in traditional and intensive shrimp ponds. A total of 25 shrimp from each pond type were examined for the presence of ectoparasitic protozoa. Four parasite species were identified in traditional ponds: Zoothamnium sp., Epistylis sp., Vorticella sp., and Trichodina sp. In contrast, three species (Zoothamnium sp., Epistylis sp., and Vorticella sp.) were found in intensive ponds, with Trichodina sp. absent in the latter. The prevalence of ectoparasitic protozoa was higher in intensive ponds, with 44% of shrimp infected, compared to 8% in traditional ponds. The intensity of infection was also higher in intensive ponds, with an average intensity of 10.27, categorized as medium, compared to an intensity of 5.2 in traditional ponds, categorized as low. These findings suggest that intensive farming conditions may contribute to increased susceptibility to ectoparasitic infections in shrimp. The study emphasizes the importance of monitoring and managing parasite infestations to reduce health risks in shrimp aquaculture systems.  
Co-Authors Ambarwati, Dewi Aufa, In'amul Febrina, Melinda Kurnia Agesti, Elmira Loh, Jiun-Yan Mohammad Faizal Ulkhaq Nindi, Inda Arsyi Pardede, Maria Agustina Puspita Sari, Putri Rahmawati, Anggi Rusita Taufiq Abdullah, Taufiq Tjahjaningsih, Wahju