Effects of Different Natural Feed Types on Domestication, Survival Rate, and Growth of Glass Catfish (Kryptopterus palembangensis)

Yonarta, Danang and Muslim, Muslim and Syaifudin, Mochamad and Taqwa, Ferdinand Hukama and Wijayanti, Marini (2026) Effects of Different Natural Feed Types on Domestication, Survival Rate, and Growth of Glass Catfish (Kryptopterus palembangensis). World's Veterinary Journal. 449 - 458. ISSN 23224568

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Abstract

Intensive, uncontrolled fishing has primarily reduced glass catfish (Kryptopterus palembangensis) populations in Indonesian waters, especially in Sumatra, leading to a steady decline in natural populations through continuous overexploitation. The present study aimed to evaluate the effects of different natural feeds on the growth performance and survival of glass catfish during the domestication phase (process of adapting wild fish to aquaculture conditions using appropriate natural feed types). A total of 150 glass catfish, with an average initial length of 14.62 ± 0.53 cm and an average initial weight of 15.58 ± 0.73 g, were subjected to the present study, using a completely randomized design with five treatment groups and three replications. Each experimental unit contained 10 fish, resulting in 30 fish per treatment. The treatment groups consisted of different natural feed types, namely small live fish (P1), shrimp (P2), earthworms (P3), maggots (P4), and Tubifex sp. (P5). Growth performance, survival rate, and digestive enzyme activity of glass catfish were observed after 30 days of rearing. The present results indicated that Group P2 significantly improved the growth performance of glass catfish, including absolute weight (3.61 ± 0.16 g), absolute length (2.85 ± 0.11 cm), specific growth rate (0.85 ± 0.03 day-1), and daily growth rate (0.12 ± 0.01 g day-1) compared to other groups. Additionally, Group P2 exhibited the highest survival rate at 100 and the highest digestive enzyme activities, with amylase at 7.24 ± 0.14 U mL-1, lipase at 0.37 ± 0.01 U mL-1, and protease at 0.69 ± 0.01 U mL-1. The second-best performance was observed in Group P1, followed by P3, P5, and P4. Shrimp was identified as the most effective natural feed for improving the growth performance and survival rate of glass catfish. © The Author(s) 2026 Open Access: This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit https://creativecommons.org/licenses/by/4.0/.

Item Type:	Article
Keywords:	Digestive enzyme; Domestication; Glass catfish; Growth; Survival rate
Subjects:	S Agriculture > SF Animal culture
Divisions:	World's Veterinary Journal (WVJ)
Page Range:	449 - 458
Journal or Publication Title:	World's Veterinary Journal
Journal Index:	Scopus
Volume:	16
Number:	2
Publisher:	Scienceline Publication
Identification Number:	https://doi.org/10.54203/scil.2026.wvj42
ISSN:	23224568
Depositing User:	Dr. Alireza Sadeghi
URI:	https://eprints.science-line.com/id/eprint/1692

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