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Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: The effects of rearing water depths and feed types on the growth performance of African catfish (Clarias gariepinus)
Author(s): Abdel-Hay, Abdel-Hay M
Emam, Wasseem
Omar, Amira A
Eltras, Wael F
Mohamed, Radi A
Keywords: fish feed efficiency
floating and sinking fish feed
pond water level
Issue Date: Feb-2020
Citation: Abdel-Hay AM, Emam W, Omar AA, Eltras WF & Mohamed RA (2020) The effects of rearing water depths and feed types on the growth performance of African catfish (Clarias gariepinus). Aquaculture Research, 51 (2), pp. 616-622.
Abstract: African catfish (Clarias gariepinus) has been growing in popularity as a culture species globally. Although considerable research has been carried out on this species’ feeding preferences, no research has been carried out on optimum water level for growth. This is particularly surprising given this species' benthic nature. This study assessed the effect of different combinations of water levels and types of feed on the growth performance of African catfish. The study employed a 3 × 2 factorial design with three ponds of different water levels (0.5, 1 and 1.5 m) and two types of feeds (floating and sinking). Twelve earthen ponds (1 × 2 m) were each stocked with 16 catfish fingerlings (mean weight ~100 g), and their growth was monitored for 12 weeks. The fish cultured in the shallowest water grew significantly faster than those cultured in the deepest ponds. At the same time, fish cultured in the shallowest ponds had the lowest feed intake rates and consequently the lowest feed conversion ratios. Catfish fed sinking pellets grew faster than those fed floating pellets although the difference was not significant. There was no significant interaction between pond water depth and feed type. The results of this study suggest that the growth and feeding efficiency of C. gariepinus can be optimized by culturing in fairly shallow ponds (0.5 m).
DOI Link: 10.1111/are.14409
Rights: © 2019 The Authors. Aquaculture Research published by John Wiley & Sons Ltd This is an open access article under the terms of the Creative Commons Attribution License (, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
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