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All Journal Jurnal Kelautan Tropis Jurnal Perikanan
Sri Mulyani
Aquaculture Study Program, Faculty of Agriculture, Bosowa University
Agriculture, Biological Sciences & Forestry

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Effect of Vitamin C Bioencapsulation in Natural Feed on Protein, Fat, Energy, and Mortality of Milkfish Larvae (Chanos chanos) Sri Mulyani; Sutia Budi; Indra Cahyono; Khairiman Khairiman
Jurnal Kelautan Tropis Vol 26, No 2 (2023): JURNAL KELAUTAN TROPIS
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkt.v26i2.17969

Abstract

Indications of milkfish larvae problems show lack symptoms of vitamin C in the tissues, which will cause defective bone formation and become an inhibitor factor in growth and mortality. This research aims to investigate the influence of vitamin C bioencapsulation on rotifer and artemia in protein retention, fat, energy, and the cause of death in milkfish larvae (Chanos chanos). The dose of vitamin C used in this study were 0 (control), 50, 100, 150, and 200 mg L-1. The treatment starts from D-1 to D-30 stadia of milkfish larvae, with 30-day maintenance. The density of milkfish larvae utilized is 20 L-1. The protein and fat content of milkfish larvae bodies were measured using a proximate analysis, and the energy content of the feed was measured using a bomb calorimeter. Mortality was observed under the Ministry of Health of Republic Indonesia standard binocular microscope by identifying larvae that died daily in each container. This research shows that vitamin C bioencapsulation in rotifer and artemia affects the retention rate of protein, fat, energy and the cause of milkfish larvae mortality. The dose of vitamin C of 150 and 200 mg L-1 is effective in improving protein, fat, and energy retention, which can minimize the cause of milkfish larvae mortality. The best results are obtained by bioencapsulating Vitamin C on rotifer and artemia with dose of 150 mg L-1.
Dampak Pemberian Jamur Jakaba dengan Dosis Berbeda dalam Budidaya Infusoria sp.: Study Tentang Kadar Nitrit, Nitrat, Dan Fosfat Sri Mulyani; Melianti Tasik; Amal Aqmal; Indra Cahyono
Jurnal Perikanan Unram Vol 14 No 3 (2024): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v14i3.908

Abstract

Seed quality and feed quality are major issues in fish and shrimp farming.  Infusoria is a natural microorganism as feed for fish and shrimp larvae, infusoria need a nutrient-rich environment to grow and develop. This study aims to determine the impact of giving Jakaba mushrooms with different doses on the content of important nutrients such as nitrites, nitrates, and phosphates in infusoria cultivation. This research will be carried out at the Integrated Fisheries Laboratory of Bosowa University in February 2024. This study used the quantitative experimental method Complete Randomized Design (RAL) with three treatments and three repeats. Infusoria sp with a density of 1.2 x 105 individuals / liter is maintained in a container with a volume of 1.5 liters filled with water used for fish maintenance. The process of making Jakaba mushrooms is by breeding the finished Jakaba mushrooms into leri water, then fermented for approximately fourteen days. The application of Jakaba mushroom fertilizer is carried out on the seventh day after the Infusoria culture is carried out according to the treatment dose, namely:: treatment A (15 ml/ liter); B (20 ml/ liter and C (25 ml/ liter). The results showed that giving Jakaba mushrooms with a dose of treatment C (25 ml / 1 liter) resulted in nitrite, nitrate levels of 0.334 ppm, 0.632 ppm and 0.334 ppm respectively.
Co-Authors Aqmal, Amal Indra Cahyono Indra Cahyono Khairiman Khairiman Melianti Tasik Sutia Budi