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Muhajir Muhajir
Faculty of Food and Fisheries Technology, Dr. Soetomo University
Agriculture, Biological Sciences & Forestry

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THE EFFECT OF PROVIDING DIFFERENT TYPES OF NATURAL FEED ON THE ABSOLUTE LENGTH GROWTH OF MANFISH (Pterophyllum scalare) MEASURING 4-5 cm IN EXPERIMENTAL TANKS Fikri Islamudin; Muhajir Muhajir; Indra Wirawan
Vol 16 No 1 (2026): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v16i1.2041

Abstract

Indonesia is a significant hub for the global ornamental fish sector, contributing approximately 400 out of 1,100 internationally traded freshwater ornamental fish species, including the highly popular Manfish (Pterophyllum scalare). Due to its graceful movement and distinct flat body shape, the manfish is a key commodity. This omnivorous species exhibits a carnivorous tendency, prioritizing a high-protein diet for optimal growth. While Manfish sized 4-5 cm can consume commercial feed, they show a preference for natural feeds like brine shrimp (Artemia salina), tubifex worms (Tubifex sp.), and water fleas (Daphnia sp.) due to their high nutritional content and motion, which stimulates appetite. Maintaining an optimal diet, specifically 30-45% protein and 6-10% fat during the juvenile stage, is crucial for successful cultivation and is primarily provided through these natural feeds. Length is often considered a more stable indicator of skeletal growth than weight in ornamental fish studies. This research aims to determine the effect of different types of natural feed on the absolute length growth of Manfish (Pterophyllum scalare) measuring 4-5 cm in experimental tanks and to identify the best natural feed type for maximizing this growth. The study will be conducted using an experimental method with a Completely Randomized Design (CRD) consisting of three treatments and nine replications each: Treatment A (Tubifex sp.), Treatment B (Artemia salina), and Treatment C (Daphnia sp.). The study will use 81 Manfish (4-5 cm, mean weight 3,05 g/fish) with a stocking density of 1 fish/L.
THE EFFECT OF KETAPANG (Terminalia catappa) LEAF EXTRACT DOSAGE ON THE SURVIVAL RATE OF 5–7 CM STRIPED CATFISH (Pangasius pangasius) FINGERLINGS INFECTED WITH Edwardsiella tarda Laili Rohmah; Muhajir Muhajir; Achmad Kusyairi
Vol 16 No 1 (2026): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v16i1.2045

Abstract

Pangasius cultivation is an important aquaculture sector in Indonesia. However, intensification programs are often accompanied by increased vulnerability to disease. One disease that frequently occurs in pangasius cultivation is the systemic bacterial disease Motile Edwardsiella Septicemia (MES), also known as Edwardsiellosis. This disease is caused by infection with the bacterium Edwardsiella tarda and causes mortality of 5-7 cm pangasius fry ranging from 80-95% for 2-8 weeks. Treating fish diseases using chemicals can trigger new problems, such as antibiotic residues, bacterial resistance, and environmental pollution. A widely developed strategy utilizes herbal ingredients as immunostimulants and antibacterial agents, one of which is extract of ketapang (Terminalia catappa) leaves. This study aims to determine the effect of the dose of ketapang leaf extract on the survival rate of 5-7 cm pangasius fry infected with Edwardsiella tarda bacteria. This study used an experimental method with a Completely Randomized Design (CRD) consisting of 5 treatments and 5 replications. This study used different doses of ketapang leaf extract. Treatment A; Ketapang leaf extract dose of 100 mg/L, Treatment B; Ketapang leaf extract dose of 200 mg/L, Treatment C; Ketapang leaf extract dose of 300 mg/L, Treatment D; Ketapang leaf extract dose of 400 mg/L, Treatment E; Ketapang leaf extract dose of 500 mg/L. The test animals used catfish seeds measuring 5-7 cm with an average weight of 3.5 g/tail. The stocking density was 3 tails/L, the experimental media used fresh water with a volume of 3 L/container. The results showed that treatment C gave the best results on the survival rate of 5-7 cm catfish seeds of 93.33%.
Co-Authors Achmad Kusyairi Fikri Islamudin Indra Wirawan Laili Rohmah