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Journal of Aquaculture Science
Published by Universitas Airlangga
ISSN : 25500910     EISSN : 25794817     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Journal of Aquaculture Science (JoAS) merupakan media pertukaran informasi dan karya ilmiah pada bidang Akuakultur meliputi teknik budidaya, teknologi, reproduksi dan penyakit ikan pada budidaya. Secara umum, Journal of Aquaculture Science menerima artikel hasil penelitian review artikel dan komunikasi singkat. Journal of Aquaculture Science terbit 2 kali dalam setahun (April dan Oktober).
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Articles 7 Documents
 1 
Search results for , issue "Vol 8 No 1 (2023): Journal of Aquaculture Science" : 7 Documents clear
Pengaruh Penambahan Fermentasi Daun Murbei (Morus spp.) Dalam Formulasi Pakan untuk Menstimulasi Molting Kepiting Bakau (Scylla serrata) Sulfah Salnida Dewi; Salnida Yuniarti Lumbessy; Dewi Putri Lestari
Journal of Aquaculture Science Vol 8 No 1 (2023): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v8i1.201

Abstract

One of the factors in aquaculture activities that affect the production and growth process of mud crab is molting. Several techniques have been developed to accelerate the molting of mud crabs, namely ablation, mutilation, and supplementation. One form of supplementation is through the use of fermented mulberry leaves in mud crab feed. Therefore, this study aimed to analyze the effect of adding fermented mulberry leaves (Morus spp.) in feed to stimulate the molting of mud crabs (S. serrata). This research was carried out in traditional ponds in Bugis Village, Sape District, Bima Regency, for 60 days. The method used was an experimental method with a completely randomized design (CRD) consisting of five treatments and three replications, namely control treatment/trash fish (P1), 20% Mulberry Leaf Fermentation (P2), 25% (P3), 30% (P4), and 40% (P5). Research parameters comprise frequency and percentage of molting, absolute growth, specific growth rate, feed utilization efficiency, feed conversion ratio, survival rate, and water quality. The results showed that the combination test feed of fermented mulberry leaf (Morus spp.) in the mud crab (S. serrata) diet did not affect all the parameters measured. The provision of mangrove crab feed formulation with a concentration of 25% mulberry leaf fermentation (P3) and control treatment (P1) gave a faster initial molting, which was the first 10 days of the rearing period with the highest average frequency and percentage of molting of 37 and 41%, respectively.
Kadar Glukosa Darah dan Infestasi Ektoparasit Flagellata pada Ikan Mas Koki (Carrasius auratus) yang diberi Suspensi Whole Cell Lernaea dengan Dosis dan Waktu Pemeliharaan yang Berbeda Netty Sreani; Laksmi Sulmartiwi; Gunanti mahasri
Journal of Aquaculture Science Vol 8 No 1 (2023): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v8i1.241

Abstract

The high consumer interest in ornamental fish such as goldfish causes aquaculture to try to meet the highest production so that large scale aquaculture activities appear accompanied by problems due to imbalances between the host, the environment and diseases such as pathogens. The purpose of this study was to determine the effect of giving Whole Cell Lernaea as an immunostimulant development material as an effort to prevent pathogen attacks in aquaculture. This study used a completely randomized design (CRD) with a factorial pattern, namely factor A was different doses of Whole cell Lernaea and factor B was different length of maintenance. The results showed that the highest blood glucose levels of goldfish occurred in the 0 ppm treatment on day 0 with a range between 53.60-87.60 mg/dL and the lowest in the 5 ppm treatment on day 21 with a range between 44.20-86.60 mg/dL. Ichthyobodo spp. ectoparasite infestation. occurred on days 0 and 14 with a dose of 0 ppm which is about 2-3 ind/head different from giving a dose of 5 ppm during maintenance for 21 days there were no cases of goldfish that were attacked by ectoparasites. There was an interaction between dose and duration of maintenance on blood glucose levels of goldfish given Whole cell lernaea suspension, while there was no interaction with flagella ectoparasite infestation. The best treatment to reduce blood glucose levels to normal is the administration of Whole Cell Lernaea suspension at a dose of 5 ppm and a maintenance time of 21 days.
Pengaruh Perbandingan Konsentrasi Rumput Laut Terhadap Total Bakteri dan Ragi Kombucha (Kappaphycus Alvarezii) Selama Proses Produksi Rikky Leonard Rikky; Dwitha Nirmala; Rahayu Kusdarwati; Pamela
Journal of Aquaculture Science Vol 8 No 1 (2023): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v8i1.261

Abstract

The comparison of the concentration of Kappaphycus alvarezii seaweed is estimated to affect the total bacteria and yeast during the kombucha production process. The carbohydrate content in seaweed can be one of the factors for the formation of nata as a parameter for the success of making kombucha, as well as its effect on nutrition for bacterial and yeast growth. This study aims to determine the effect of comparing the concentration of seaweed on the total bacteria and yeast kombucha Kappaphycus alvarezii. The method used in this study is an experimental method with a completely randomized design (CRD) with six treatments and 4 replications. The results of this study indicate that the comparison of the concentration of Kappaphycus alvarezii seaweed affects the total bacteria and yeast during the kombucha making process. The total bacteria test showed that the total bacteria increased until the 3rd day and the highest total yield was found in the control treatment, which was 1,6x107 CFU/ml on the 3rd day. Then the total yeast also increased until the 3rd day and the highest yield was found in the control treatment of 2,3x107 CFU/ml.
Fekunditas, Diameter Telur, Persentase Fertilitas, Dan Daya Tetas Pada Strain Ikan Cupang (Betta Splendens) Yang Berbeda Darmawan Setia Budi, S.Pi., M.Si; Dian Pebianti; Akhmad Taufiq Mukti; Laksmi Sulmartiwi; Lailatul Lutfiyah; Mohammad Faizal Ulkhaq
Journal of Aquaculture Science Vol 8 No 1 (2023): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v8i1.273

Abstract

Betta fish (Betta splendens) has export and import potential. Several popular betta fish strains include halfmoon, crown tail, double tail, and placard. We used the observation method to observe four betta fish strains with five replications. The four fish strains were spawned and will be dissected to obtain the female betta fish's gonads. The parameters observed in this study were fecundity, egg diameter, fertility, and hatchability. This study's data analysis method was analysis of variance (ANOVA) with Duncan's multiple range test. Based on the findings of the observations, it is known that the results of betta fish spawning and gonadal dissection on these various betta fish strains show a significant difference in fish fecundity (P 0.05). However, no significant difference in egg diameter, fertility, or hatchability was observed (P > 0.05). Betta splendes strains differ in terms of fecundity, fertility, hatching rate, and egg size.
Pengaruh Suplementasi Enzim Bromelain Terhadap Performa Pertumbuhan Belut (Anguilla Bicolor) Mohammad Faizal Ulkhaq, S.Pi., M.Si; Darmawan Setia Budi; Syarifa Bintang Maharani; Boedi Setya Rahardja
Journal of Aquaculture Science Vol 8 No 1 (2023): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v8i1.274

Abstract

The eel (Anguilla bicolor) is an economically significant but slow-growing fish. This research aims to determine the GR, SGR, feed efficiency, and FCR values of Anguilla bicolor fed supplemental bromealin feed. The method employed was a completely randomized design (CRD), which was analyzed using an ANOVA with a 95% confidence level and subsequently evaluated by Duncan (DMRT). Enzymes derived from pineapple have a significant impact on feed conversion ratio and feed efficiency. However, neither the GR nor SGR parameters exhibited a significant change. P4 with GR 0.38 0.03 g/day, SGR 0.95 0.03%/day, FCR 1.97 0.15, and EPP 50.9 4, or 17%, was the most effective treatment in this study.
Effect of Vitamin E Supplementation on the Growth Performance of Clarias Sp. arif fitra; Mohammad Hilmi Maulana; Darmawan Setia Budi; Agustono
Journal of Aquaculture Science Vol 8 No 1 (2023): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v8i1.276

Abstract

The high demand for catfish motivates farmers to increase production by stocking at a high density. The stress response caused by stocking density, which has an effect on fish growth and survival, is one of the challenges associated with catfish farming with high stocking levels. This issue can be resolved by supplementing catfish feed with vitamin E to stimulate growth. This study aims to determine the effect of vitamin E supplementation on catfish growth, feed efficiency, and survival. This study employs the RAL method with five treatments, including feeding catfish seeds with vitamin E levels of 0 mg/kg feed (P1), 50 mg/kg feed (P2), 100 mg/kg feed (P3), 150 mg/kg feed (P4), and 200 mg/kg feed (P5), with each treatment repeated four times. Adding 100 mg of vitamin E per kg of feed resulted in the highest growth rates (1.66 0.05%/day), a feed conversion ratio of 1.2 0.07, and a feed efficiency of 83.46 3.24% when compared to other treatments and was significantly different (p 0.05). The addition of 100 mg of vitamin E to the feed had no discernible effect on survival compared to other treatments. Keyword: Vitamin E, supplementation, growth, Clarias sp.
Pengaruh Konsentrasi Protein yang Berbeda dalam Suspensi Dedak sebagai Pakan terhadap Diameter Kista Artemia salina : Pengaruh Konsentrasi Protein yang Berbeda dalam Suspensi Dedak sebagai Pakan terhadap Diameter Kista Artemia salina Ahmad Shofy Mubarak; Laksmi Sulmartiwi; Muhammad Daffa Al Rasyid Nurhayati
Journal of Aquaculture Science Vol 8 No 1 (2023): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v8i1.278

Abstract

Artemia salina is a natural food that is very important in hatcheries. The need for Artemia as a natural feed for fish or shrimp seeds is high in Indonesia, so it is necessary to develop local Artemia cultivation. One way to do this is to increase the production of Artemia salina cysts by paying attention to the quality and quantity of feed, namely enrichment with ISP (Isolated Soya Protein) flour in the feed given. ISP is a protein isolated from soybeans with the final product in the form of flour, easy to digest and has high nutritional value. Enrichment with ISP flour was carried out with the aim of increasing the protein content that affects the formation of the shell and the size of the good Artemia salina cyst. This study aimed to determine the effect of different protein concentrations using ISP (Isolated Soya Protein) in bran suspension on the diameter of Artemia salina cysts. The research method used was experimental with a completely randomized design (CRD) using 5 treatments and 4 replications. The results showed that different protein concentrations by enriching ISP flour (Isolated Soya Protein) in bran suspension as feed had a significant effect (P<0.05) on Artemia salina cyst diameter in the third week. The administration of ISP with a protein concentration of 40% and 45% showed the highest Artemia salina cyst diameter.

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