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All Journal BERITA BIOLOGI Omni-Akuatika Jurnal Riset Akuakultur JIPI (Jurnal Ilmiah Penelitian dan Pembelajaran Informatika)
Taukhid Taukhid, Taukhid
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Education Environmental Science

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Journal : Omni-Akuatika

 1 
Streptococcosis on Nile tilapia (Oreochromis niloticus) in Indonesian freshwater aquaculture Taukhid, Taukhid; Wajdy, Edy Farid; Sugiani, Desy; Nafiqoh, Nunak
Journal Omni-Akuatika Vol 19, No 1 (2023): Omni-Akuatika May
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.oa.2023.19.1.1005

Abstract

This review aimed to provide the current status of streptococcosis in freshwater aquaculture in Indonesia. So far, this disease has been mostly reported in tilapia aquaculture, and there have been no serious reports of this disease in other species of freshwater aquaculture. The disease is mostly encountered during the dry season or the transition period from the dry season to the rainy season or vice versa. Initially, the disease was mostly reported in tilapia larger than 250 grams, but in its development, it was also reported in smaller fish. The Ministry of Marine Affairs and Fisheries (MMAF) has classified this disease as a major disease in tilapia in Indonesia since 2014. Based on the characteristics of Streptococcus agalactiae isolates collected from diseased tilapia from various regions in Indonesia, two biotypes were found consisting of ?-hemolytic S. agalactiae (biotype I) and non-hemolytic S. agalactiae (biotype II). Biotype I cause disease with acute mortality patterns, while biotype II causes disease with chronic and persistent mortality patterns. Based on susceptibility to S. agalactiae during artificial infection testing, it is known that all tilapia strains that have been released to the public for aquaculture purposes are susceptible to infection with the bacteria; although each strain has a different level of susceptibility. Fish health management strategies that are based on preventive measures and relevant to sustainable aquaculture programs should be based on ecological-biological approaches such as the implementation of biosecurity systems, the use of vaccines for endemic diseases, probiotics, essential herbs, and the development of more disease-resistant populations.Keywords: health management, streptococcosis, Streptococcus agalactiae, tilapia
Susceptibility of three indigenous Indonesian fish species: mahseer (Tor soro), snakehead (Channa striata), and bagrid catfish (Hemibagrus nemurus) against parasites infection Sumiati, Tuti; Taukhid, Taukhid; Andriyanto, Septiyan; Wadjdy, Edy Farid
Journal Omni-Akuatika Vol 18, No 2 (2022): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.oa.2022.18.2.1000

Abstract

Abstract Mahseer "dewa" (Tor soro), snakehead "gabus" (Channa striata), and bagrid catfish "baung" (Hemibagrus nemurus) are local specific fish species that are promising to be developed as freshwater aquaculture commodities in Indonesia. Disease cases/outbreaks in those fish farming have often been reported, however, there is not much information on the epizootiology and disease status of those fish species. The susceptibility of those fish to parasitic infection was evaluated by natural and artificial infection. Natural infection was conducted by randomly sampling 20 fish at 5-day intervals and lasting for 30 days. In artificial infection, 150 tested fish cohabited with 40 parasite-carrying fish that were known to be definitely infected by the parasite. The observation was carried out by sampling 20 fish at 5-day intervals and lasting for 30 days. The results showed that the three fish species were susceptible to infection with Trichodina spp, Epistylis spp, Tetrahymena spp, Ichtyophthirius multifiliis, Dactylogyrus spp, and Gyrodactylus spp, while the helminth parasite Pallisentis nagpurensis (Acanthocephala) was only identified in snakehead. A number of parasites such as I. multifiliis, Dactylogyrus spp., and Gyrodactylus spp. are likely to be potential obstacles in the cultivation of those fish species, especially in hatcheries and nurseries. Keywords: mahseer, snakehead, bagrid catfish, parasites
Co-Authors Andriyanto, Septiyan ANGELA MARIANA LUSIASTUTI Kholidin, Edy Barkat Muhammad Abduh Murniasih, Siti Nafiqoh, Nunak Prasetya, Taufan Agung Rosidah Rosidah Sapto Dwi Anggoro, Sapto Dwi Saputra, Adang Setiadharma, Gunawan Sirodiana, Sirodiana SUDARMAJI SUDARMAJI Sugiani, Desy Suryadi, Kusumasari Tuti Sumiati, Tuti Wadjdy, Edy Farid Wajdy, Edy Farid