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The Effect of Variation in the Proportion of Artificial and Natural Feed on Feed Selection and Consumption by Eel (Monopterus sp.) Sintiya, Titik; Abidin, Zaenal; Muahiddah, Nuri
Journal of Fish Health Vol. 5 No. 2 (2025): Journal of Fish Health
Publisher : Aquaculture Department, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfh.v5i2.6367

Abstract

Swamp eel is one of the fishery commodities favored by the community. Swamp eel cultivation activities have not been widely developed due to the lack of feed availability to support cultivation efforts. Instead of using artificial feed, the farmer has used natural feed in the form of earthworms so far. Therefore, in this study, artificial feed and natural feed are combined to stimulate the feed acceptance of the eel. This study determined the proportion between artificial and natural feed on the level of feed consumption of swamp eel. The method used consisted of four treatments: 50% feed + worms (control diet), 75% feed + 25 snails, 50% feed + 50% snails, and 25% feed + snails 75%. The results show that the differences in the proportion of artificial and natural feed did not affect the feed selection, time response, and feed consumption by eel. Therefore, 25% snails and 75% artificial feed are recommended to stimulate the eel's feeding response.
Evaluation of Alginate Use as an Immunostimulant in Litopenaeus vannamei Shrimp Aquaculture (Review) Muahiddah, Nuri; Effendi, Irzal; Supriyono, Eddy; Affandi, Rangga Idris
Journal of Fish Health Vol. 5 No. 4 (2025): Journal of Fish Health
Publisher : Aquaculture Department, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfh.v5i4.8402

Abstract

The Pacific white shrimp (Litopenaeus vannamei) is one of the most important species in global aquaculture but remains highly vulnerable to bacterial, viral, and environmental stressors. Conventional reliance on antibiotics and chemicals has raised concerns over resistance and sustainability, underscoring the need for eco-friendly alternatives. Alginate, a natural polysaccharide extracted from brown seaweeds such as Sargassum, has emerged as a promising immunostimulant and functional feed additive. Experimental studies show that alginate supplementation enhances non-specific immune responses, including total haemocyte count, phenoloxidase, superoxide dismutase, phagocytic activity, and total plasma protein. At the molecular level, alginate upregulates immune-related genes (e.g., Toll, LGBP, proPO), resulting in higher resistance against Vibrio spp. and White Spot Syndrome Virus (WSSV). In addition, low molecular weight sodium alginate improves antioxidant activity and stress tolerance under cadmium exposure, while dietary supplementation supports growth performance and feed utilization. From a sustainability perspective, converting Sargassum biomass into alginate aligns with circular economy principles by transforming an abundant, underutilized seaweed into high-value aquafeed additives. This reduces dependency on antibiotics and synthetic chemicals while generating added value for coastal communities. Overall, alginate represents a multifunctional and cost-effective strategy to strengthen shrimp immunity, enhance resilience to pathogens and stressors, and promote environmentally responsible aquaculture production.
Co-Authors Abidin, Z Abidin, Zaenal Adriana Monica Sahidu Al Furkan ALIM ISNANSETYO Alis Mukhlis Andi Maria Ulfa Andre Rachmat Scabra Anggraini, Irika Devi Anjani, Yulia Dewi Anna Apriana Hidayanti Anton Anton Asri, Yuliana Ayu Diamahesa, Wastu Bagus Dwi Hari Setyono Bagus Dwi Hari Setyono BAGUS DWI HARI SETYONO Damai Diniariwisan Damai Diniariwisan Dewi Putri Lestari Dewi Putri Lestari, Dewi Putri Diamahesa, Wastu Ayu Diniariwisan, Damai Dwiyanti , Septiana Dwiyanti, Septiana Eddy Supriyono Erlana, Nirma Aprila Evron Asrial Fariq Azhar Fariq Azhar Fitri, Miftahul Fitriani, Laily Fitriani Hafizah, Imroatul HAMID Idris Affandi, Rangga Irzal Effendi Kaitjily, Priscilla Josephine Khilal Aditya L. Achmad Tan Tilar WSK Laily Fitriani Mulyani Lalu Hizbulloh Lumbessy, Salnida Yuniarti Lutfah Yunata Pratiwi M Junaidi, M Maolana, Arman Marno, Septhian Mita Ayu Liliyanti MOHAMAD FADJAR Muhammad Amin Muhammad Junaidi Muhammad Junaidi Muhammad Marzuki Muhammad Marzuki Muhammad Sumsanto Muhammad Sumsanto Mulyani, Laily Fitriani Nanda Diniarti Naning Dwi Sulystyaningsih Naning Dwi Sulystyaningsih Naning Dwi Sulystyaningsih Nunik Cokrowati Nur Fadhilah Rahim Panosa, Alief Erwanda Pratiwi, Lutfah Yunata Putri Lestari, Dewi Rahmadani, Thoy Bathun Citra Rahmadani, Thoy Batun Citra Rangga Idris Affandi Rangga Idris Affandi Rusmin Nuryadin Sadikin Amir Sahrul Alim Sapto Andriyono Saruni SEPTIANA DWIYANTI Septiana Dwiyanti Septiana Dwiyanti Septiana Dwiyanti Septiana Dwiyanti Sintiya, Titik Sitti Hilyana soraya, indah Suhardinata Sukartono Sulystyaningsih, Naning Dwi Sumahiradewi, Luh Gede Thoy Batun Citra Rahmadani Thoy Batun Citra Rahmadani Thoy Batun Citra Rahmadani Yuliana Asri Yuliana Asri Yuliana Asri Yuliana Asri Zaenal Abidin