https://journalajfar.com/index.php/AJFAR/issue/feed Asian Journal of Fisheries and Aquatic Research 2024-04-12T12:56:03+00:00 Asian Journal of Fisheries and Aquatic Research contact@journalajfar.com Open Journal Systems <p><strong>Asian Journal of Fisheries and Aquatic Research (ISSN: 2582-3760)</strong> aims to publish high quality papers (<a href="https://journalajfar.com/index.php/AJFAR/general-guideline-for-authors">Click here for Types of paper</a>) on all areas of aquatic research. By not excluding papers based on novelty, this journal facilitates the research and wishes to publish papers as long as they are technically correct and scientifically motivated. The journal also encourages the submission of useful reports of negative results. This is a quality controlled, OPEN peer-reviewed, open-access INTERNATIONAL journal.</p> https://journalajfar.com/index.php/AJFAR/article/view/751 Correlation of Water Quality Parameters on Growth Performance of Seaweed (Kappaphycus alvarezii Doty, 1986) Cultivated with Diagonal Method 2024-04-04T12:34:39+00:00 Dewi Anita Wayan Kantun aryakantun@gmail.com Imran Lapong <p><em>Kappaphycus alvarezii</em> seaweed is an exported commodity that has economic value and is a leading commodity in aquaculture. The present study aims to analyze the correlation between water quality parameters and the growth of <em>Kappaphycus alvarezii</em> seaweed using the diagonal method. A completely randomized design using three treatments and four replications was applied for the experimental design. The research was carried out from May to June 2023 in the waters of Angkue Village, Bone Regency, Indonesia. Treatment in this diagonal model was based on the length of the diagonal rope, namely 2.5 m (treatment 1), 3.5 m (treatment 2), and 4.5 m (treatment 3) of the water depth and seaweed maintained for 42 days at a water depth of five meters. The results showed that the absolute growth of seaweed was 17,537.0 g during the study, with an average of 5845.67 ± 359.34 g. In treatment 1, the absolute growth was 1368.55 ± 5.29 g; in treatment 2, it was 1467.83 ± 4.58 g; and in treatment 3, it was 1547.88 ± 1.24 g, with the highest growth rate and the lowest growth rate in the first week. Water quality parameters all contribute positively to seaweed growth, but those that contribute most strongly to seaweed growth are brightness, phosphate, nitrate, and salinity.</p> 2024-04-04T00:00:00+00:00 Copyright (c) 2024 Author(s). The licensee is the journal publisher. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. https://journalajfar.com/index.php/AJFAR/article/view/752 Dietary Supplementation of Chromium Picolinate does not affect Growth Performance and Feed Conversion Ratio of Rainbow Trout (Oncorhynchus mykiss) 2024-04-06T13:00:05+00:00 Ishori Singh Mahato Krishna Paudel aceskrishna@gmail.com <p><strong>Aims: </strong>A growth experiment was conducted to explore the impact of dietary chromium on the growth performance and feed conversion ratio of rainbow trout (<em>Oncorhynchus mykiss</em>).</p> <p><strong>Study Design:</strong>&nbsp; Original Research Article</p> <p><strong>Place and Duration of Study:</strong> Fisheries Research Station (FRS), Trishuli Nepal, between November 1 to January 29, 2023.</p> <p><strong>Methodology:</strong> A total of 270 healthy and equal sized- <em>O. mykiss</em> (initial weight: 27g) were fed on a non-supplemented basal diet (Cr-Pic0), or a basal diet supplemented with 0.4g/kg Cr-Pic (Cr-Pic0.4), or a basal diet supplemented with 1.2g/kg Cr-Pic (Cr-Pic1.2) for 90 days. Each diet was randomly assigned to three replicate groups of 30 fish per flowthrough raceway tanks for 90 days and fed to apparent satiation twice daily.</p> <p><strong>Results:</strong> Upon conclusion of the feeding trial, the results showed no significant differences in final weight, weight gain, specific growth rate, or condition factor among treatments (P&gt;0.05). There were also no significant differences in the survival rate and feed conversion ratio of the rainbow trout fed various experimental diets (P&gt;0.05).</p> <p><strong>Conclusion:</strong> The results suggest that growth performance, food conversion, and survival of rainbow trout fingerlings are not affected by 0.4 or 1.2 mg/kg supplementation of Cr-Pic in diet.</p> 2024-04-06T00:00:00+00:00 Copyright (c) 2024 Author(s). The licensee is the journal publisher. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. https://journalajfar.com/index.php/AJFAR/article/view/753 Evaluation of the Impact of Feed Types on Reproductive Performance and Growth of Clarias gariepinus under different Culture Systems 2024-04-12T12:56:03+00:00 Ekanem I. E. id.ekanem@yahoo.com Nlewadim A. A Uka A. <p>The study evaluated the impact of farm-made and commercial feed types on reproductive performance and growth of <em>Clarias gariepinus</em> under different culture systems (tarpaulin, concrete, metal and earthen pond). The research was conducted for 56 weeks in a newly constructed 1m<sup>3</sup> (4ft by 4ft by 4ft) stocked with 20 juveniles each and it was established that fecundity was significantly different (<em>P</em>&lt;0.05), with the highest value (320,366.67 ± 14359.01eggs) obtained in fish fed Commercial feed C in Concrete tank C and the lowest value in the Earthen pond fed farm-made feed (153,533.33 ± 6053.1900 eggs). The results obtained in this study showed fertilisation was significantly different, with the highest value in Metal tank B fed Commercial feed B (83.52 ± 0.76 %), whereas earthen pond A fed farm-made feed recorded the lowest value (63.73 ± 2.27 %). The growth rate showed that the Highest mean weight gain of 3824.23±373.69 was recorded in Con B and the lowest of 2035.57±252.04 in Tarp A.&nbsp; The highest specific growth rate of 2.85±0.19 was in fish fed commercial feed C in Meta tank C and the lowest of 2.45±0.11 in fish fed farm-made feed in Tarp A. Growth parameters including length gain (cm), weight gain (g), specific growth rate (%/day), and percentage weight gain (%), were significantly better (<em>P</em>&lt;0.05) in fish fed commercial feed B in the concrete tank although fish fed farm made feed and commercial feed A in other tanks showed some impressive competition. Therefore, feeding fish with commercial feed C in concrete pond C and metal tank B with Commercial feed B is recommended for better reproductive performance while the use of commercial feed B in Concrete pond is recommended for fish growth although fish fed farm-made feed and commercial feed A in other tanks showed some impressive competition.</p> 2024-04-12T00:00:00+00:00 Copyright (c) 2024 Author(s). The licensee is the journal publisher. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.