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All Journal Grouper: Jurnal Ilmiah Perikanan Journal of Aquaculture Science
Hapsari Kenconojati
Airlangga University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology Veterinary

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Immunostimulant Application of Chlorella Vulgaris on the Growth of Vaname Shrimp (Litopenaeus vannamei) in Gresik Gunanti Mahasri; Daruti Dinda Nindarwi; Hapsari Kenconojati; Daud Dharmansyah; Adelia Inas Shafira; Afifah Elok Firdaus; Faisol Mas’ud; Endah Sih Prihatini; Fuquh Rahmat Shaleh
Grouper Vol. 17 No. 1 (2026): Grouper: Jurnal Ilmiah Perikanan
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/grouper.v17i1.387

Abstract

This activity aims to improve the defense of harvests and the bodies of vaname shrimp (Litopenaeus vannamei) in ponds in Gresik Regency through the application of immunostimulants from Chlorella vulgaris. The main problems faced by farmers include high shrimp mortality rates due to declining water quality and pathogen infections. The use of antibiotics has proven to be ineffective and causes residues in aquaculture products, which are harmful to health. Therefore, an environmentally friendly biotechnology approach through the use of natural immunostimulants is a more sustainable alternative. The implementation method included collaboration between the community service team, the Fisheries Service, and farmer groups in Mojoasem and Pangkah Wetan villages, Ujung Pangkah subdistrict, Gresik Regency. The stages of the activity consisted of socialization, training in the production and application of Chlorella vulgaris based immunostimulants, and assistance in applying the technology in ponds. The results of the activity showed that the use of Chlorella vulgaris immunostimulants had a significant effect on the growth and survival parameters of vaname shrimp.0020The 28-day maintenance period yielded the best results in terms of survival rate (SR) of 100%, specific growth rate (SGR) of 4.17%, and absolute weight and length growth of 1.39 grams and 1.10 cm. The application of immunostimulants can enhance immune response, maintain water quality stability, and reduce shrimp mortality rates. Thus, this technology has the potential to become an innovative strategy in the development of shrimp farming in the coastal areas of Gresik.
Inhibition potency of drumstick leaf extract (Moringa oleifera) towards Aeromonas hydrophila: Preliminary Study for Aeromoniasis Treatment. Hapsari Kenconojati; Nina Rofi' Rukman
Journal of Aquaculture Science Vol 4 No 1 (2019): Journal Of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v4i1.64

Abstract

The aim of this study was to know antibacterial potency of ethanolic extract of drumstick leaf against Aeromonas hydrophila in vitro. Total flavonoid, alkaloid, tannin and saponin of the ethanolic drumstick leaf extract were analyzed using spectrophotometry. Antibacterial activity test was carried out by disk diffusion and tube dilution method. Ethanolic extract of drumstick leaf contained flavonoids total as 71.9 mg quercetine equivalent/g, alkaloids total as 3 mg quinine equivalent/g, tannin as 24.7 mg tannic acid equivalent/g and saponin as 44.4 mg/g. The result of antibacterial test showed significant inhibition of Aeromonas hydrophila by drumstick leaf extract (P<0.05). The highest inhibition zone was produced by drumstick leaf extract with concentration of 100% which is 9.9± 0,162 mm. The minimum inhibition concentration (MIC) of drumstick leaf extract is 3.125%, while the minimum bactericidal concentration (MBC) is 6.25%. Based on this study, it can be concluded that drumstick leaf can be used as an alternative natural product of antibacterial agent which can be applied especially in aquaculture.
Bacterial Identification on Freshwater Fish Commodities at Fish Quarantine Center, Quality Control and Security of Fishery Products Surabaya I Hapsari Kenconojati; Nanik Ning Rahayu; Prayogo Prayogo; Mohammad Faizal Ulkhaq
Journal of Aquaculture Science Vol 4 No 2 (2019): Journal Of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v4i2.76

Abstract

The potential of freshwater fish cultivation in Indonesia is very large and is increasing every year. The high potential of freshwater and ornamental fisheries commodities and consumption must be developed through domestic and export marketing. The distribution carries the risk of entering and spreading fish pests and diseases, so is it required identification or quarantine is needed to avoid negative impacts from the distribution of fishery commodities. One of the infectious diseases which is known to attack fishery commodities in Indonesia is bacterial disease. Bacteria can cause high mortality in fish and loss for farmers. The purpose of this study is to identification bacteria in freshwater fish commodities. The study was conducted in December 2018 - January 2019 at the Fish Quarantine Center, Quality Control and Safety of Fisheries Products in Surabaya I. Identification of bacteria in this study using conventional methods. The parameters observed were external clinical symptoms that appeared on the body of the fish and internal pathology. The material examined in this study were The samples examined during Field Work Practices were Goldfish, Catfish fry, Common carp, and Koi fish with a total of 64 samples. This research was observative, then the data obtained were analyzed descriptively. The Result bacteria identified in freshwater fish commodities from 64 samples were dominated by Aeromonas hydrophila, Pseudomonas anguilliseptica, Streptococcus sp., Plesiomonas shigelloides, and Micrococcus sp. Keywords : Freshwater fisheries commodities, Bacteria, The Conventional Method
Co-Authors Adelia Inas Shafira Afifah Elok Firdaus Daruti Dinda Nindarwi Daud Dharmansyah Endah Sih Prihatini Faisol Mas’ud Fuquh Rahmat Shaleh Gunanti Mahasri Mohammad Faizal Ulkhaq Nanik Ning Rahayu Nina Rofi' Rukman Prayogo Prayogo