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All Journal Journal of Aquaculture and Fish Health Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan
Seto Windarto
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Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Education Engineering

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Effect of Feeding Frequency on Feed Utilization Efficiency and Growth of Asian seabass (Lates calcarifer) Fingerlings Dhea Mayang Saputri; Seto Windarto; Diana Chilmawati
Journal of Aquaculture and Fish Health Vol. 14 No. 3 (2025): JAFH Vol. 14 No. 3 September 2025
Publisher : Department of Aquaculture

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jafh.v14i3.67912

Abstract

Asian seabass (Lates calcarifer) is an economically important euryhaline fish. Feed absorbs 60–70% of the total production costs; therefore, regulating feeding frequency is necessary to increase feed utilization efficiency. Feeding frequency is the amount of feed given to fish daily. This study aimed to examine the effects of feeding frequency on the utilization of a phytase enzyme in the feed of Asian seabass fingerlings. The experimental fish used were Asian seabass fingerlings (7.57±0.28 cm in length and 5.31±0.15 g in weight) with a stocking density of one fish/L. This research used an experimental method with a completely randomized design (CRD), which consisted of four treatments and three replicates. The treatments were feeding frequencies of 1 (A), 2 (B), 3 (C), and 4 (D) times a day with the addition of 0.1 g/kg feed of the phytase enzyme. The feeding method used was the relative feeding rate, and the feed dose was 6% of the fish biomass. The results showed that feeding frequency significantly affected total feed consumption (TFC), feed conversion ratio (FCR), feed utilization efficiency (FUE), protein efficiency ratio (PER), and relative growth rate (RGR). However, they had no significant effect on the survival rate (SR) of Asian seabass fingerlings. Treatment C (3 times a day) showed the highest TFC, FCR, FUE, PER, and RGR, which were 251.85±1.61 g, 1.45±0.03, 69.08±1.50%, 1.51±0.03, and 3.90±0.11%/day, respectively. The water quality in the study area was suitable for Asian seabass cultivation. This study concluded that feeding three times a day resulted in the best FUE and RGR of Asian seabass fingerlings.
The use of maggot (Hermetia illlucens) oil in artificial feeds on the growth performance and survival rate of saline tilapia (Oreochromis niloticus) Seto Windarto; Hasbi Ash Shiddieqi; Slamet Budi Prayitno; Damang Suryanto; Sapto Purnomo Putro; Vivi Endar Herawati
Depik Vol 12, No 2 (2023): AUGUST 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.12.2.29962

Abstract

Tilapia is one of the commodities favored by the community and is widely cultivated in Indonesia. At this time, the development of tilapia cultivation has entered the location of marine and brackish waters, known as saline tilapia. The increase in tilapia cultivation has increased feed production, so the price of raw materials, especially fish oil, has increased. The source of crude fat that is usually used in feed formulations is fish oil, but the availability of fish oil is limited, so the price is increasing. One of the alternatives that can replace fish oil is maggot oil. Maggot contains 42-48% lipids. The purpose of this study is to find the effect of giving maggot oil on the growth and survival of saline tilapia. The method used was experimental, with a completely randomized design (CRD) consisting of 4 treatments and three replications. The treatments tested were treatment A (control), B (1.5 ml of maggot oil), C (2 ml of maggot oil), D (2.5 ml of maggot oil)) on 100 grams of feed. The saline tilapia used was 1.4-1.9 grams/head. The fish were reared for 30 days in 15-liter volume containers, ten fish density, and were fed three times a day. The results showed that fish oil substitution using maggot oil (H. illucens) significantly affected FUE, SGR, absolute weight, FCR, and SR of saline tilapia. The best dose of maggot oil was found in treatment B with a dose of 1.5 ml/100 grams of feed capable of producing FUE (88.783.80%), SGR (7.980.23%/day), absolute weight (41 .17 4.57gram), FCR (1.130.05), and SR (1000.00%).Keywords:BSFBrackish waterSGRProductionWeight
Co-Authors Damang Suryanto Dhea Mayang Saputri Diana Chilmawati Hasbi Ash Shiddieqi Purnomo Putro, Sapto slamet budi prayitno Vivi Endar Herawati