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2024-01-23Author
Irabor, Arnold EbukaOnwuka, Christopher NnamdiAdagha, OghenefejiroSanubi, Jovita OghenenyerhovwoPierre, Hardin Aaron JnOnwukaa, MaureenObieh, SimonSubject
570 Life sciences; biology 590 Animals; zoology AquakulturFischfutterFischeJungtiereWasserlinseColossoma macropomumMetadata
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Aufsatz
Performance of pacu (Colossoma macropomum) fed varying dietary inclusion levels of fish visceral and duckweed (Lemna minor) as replacement for fish and soybean meals
Abstract
The performance of Colossoma macropomum subjected to a six-month feeding trial using duckweed (Lemna minor) and fish visceral as partial replacements for soybean meal and fishmeal respectively was evaluated in this study. A total of one thousand five hundred (1500) nearly same sizes (average size 45 g) juveniles of C. macropomum were sourced from the nearby research man-made lake and subjected to proper acclimatisation for two weeks prior to the commencement of the feeding trial. One hundred (100) juveniles per experimental pond (EP) were stocked in triplicate with EPᵢ-ᵢᵢᵢ0% (control), EPᵢ-ᵢᵢᵢ25%, EPᵢ-ᵢᵢᵢ50%, EPᵢ-ᵢᵢᵢ75%, and EPᵢ-ᵢᵢᵢ100%. The formulated diets with varying dietary inclusion levels (0%, 25%, 50%, 75%, and 100%) of duckweed as a substitute for soybean meal, and at the same levels, fish visceral meal was used as a substitute for fishmeal. The formulated diets were fed to the experimental fishes on a twice-daily schedule (7 am and 5:30 pm). The control diet contained the conventional protein sources (fishmeal and soybean) while the other diets had fish visceral and duckweed as dietary replacements for fishmeal and soybean, respectively. A biweekly sampling of growth parameters such as body weight was carried out on twenty (20) randomly selected juveniles from each EP and data collected from the feeding trial was subjected to analysis of variance (ANOVA) (SPSS version 26) while Duncan's multiple ranges test distinguished the means at p < 0.05 significant level. The highest value for mean body weight gain at 6 months was observed at a 50% dietary inclusion level of the test ingredients (1411.7 g), while at a 100% inclusion level, the lowest value was recorded (1213.6 g). Water quality parameters sampled were within the acceptable standards indicating no adverse effect of the test ingredients on the culture medium. In general, no adverse effect was recorded across treatments. Conclusively, C. macropomum culture in Nigeria using the test diets at a 50% dietary inclusion level to replace the conventional protein sources is feasible and can help improve fish availability and sustainability through species diversification and reduced production cost since the test ingredients are obtained at minimal cost from fish traders (fish visceral) and fallow earthen ponds (duckweed).
Citation
In: Journal of Agriculture and Rural Development in the Tropics and Subtropics (JARTS) Vol.125 / No. 1 (2024-01-23) eissn:2363-6033Collections
Vol 125, No 1 (2024) (Journal of Agriculture and Rural Development in the Tropics and Subtropics (JARTS))Citation
@article{doi:10.17170/kobra-202312229279,
author={Irabor, Arnold Ebuka and Onwuka, Christopher Nnamdi and Adagha, Oghenefejiro and Sanubi, Jovita Oghenenyerhovwo and Pierre, Hardin Aaron Jn and Onwukaa, Maureen and Obieh, Simon},
title={Performance of pacu (Colossoma macropomum) fed varying dietary inclusion levels of fish visceral and duckweed (Lemna minor) as replacement for fish and soybean meals},
journal={Journal of Agriculture and Rural Development in the Tropics and Subtropics (JARTS)},
year={2024}
}
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2024-02-23T14:07:56Z 2024-02-23T14:07:56Z 2024-01-23 doi:10.17170/kobra-202312229279 http://hdl.handle.net/123456789/15484 eng Namensnennung 4.0 International http://creativecommons.org/licenses/by/4.0/ Aquaculture Fish feed Fish nutrition Juveniles 570 590 Performance of pacu (Colossoma macropomum) fed varying dietary inclusion levels of fish visceral and duckweed (Lemna minor) as replacement for fish and soybean meals Aufsatz The performance of Colossoma macropomum subjected to a six-month feeding trial using duckweed (Lemna minor) and fish visceral as partial replacements for soybean meal and fishmeal respectively was evaluated in this study. A total of one thousand five hundred (1500) nearly same sizes (average size 45 g) juveniles of C. macropomum were sourced from the nearby research man-made lake and subjected to proper acclimatisation for two weeks prior to the commencement of the feeding trial. One hundred (100) juveniles per experimental pond (EP) were stocked in triplicate with EPᵢ-ᵢᵢᵢ0% (control), EPᵢ-ᵢᵢᵢ25%, EPᵢ-ᵢᵢᵢ50%, EPᵢ-ᵢᵢᵢ75%, and EPᵢ-ᵢᵢᵢ100%. The formulated diets with varying dietary inclusion levels (0%, 25%, 50%, 75%, and 100%) of duckweed as a substitute for soybean meal, and at the same levels, fish visceral meal was used as a substitute for fishmeal. The formulated diets were fed to the experimental fishes on a twice-daily schedule (7 am and 5:30 pm). The control diet contained the conventional protein sources (fishmeal and soybean) while the other diets had fish visceral and duckweed as dietary replacements for fishmeal and soybean, respectively. A biweekly sampling of growth parameters such as body weight was carried out on twenty (20) randomly selected juveniles from each EP and data collected from the feeding trial was subjected to analysis of variance (ANOVA) (SPSS version 26) while Duncan's multiple ranges test distinguished the means at p < 0.05 significant level. The highest value for mean body weight gain at 6 months was observed at a 50% dietary inclusion level of the test ingredients (1411.7 g), while at a 100% inclusion level, the lowest value was recorded (1213.6 g). Water quality parameters sampled were within the acceptable standards indicating no adverse effect of the test ingredients on the culture medium. In general, no adverse effect was recorded across treatments. Conclusively, C. macropomum culture in Nigeria using the test diets at a 50% dietary inclusion level to replace the conventional protein sources is feasible and can help improve fish availability and sustainability through species diversification and reduced production cost since the test ingredients are obtained at minimal cost from fish traders (fish visceral) and fallow earthen ponds (duckweed). open access Irabor, Arnold Ebuka Onwuka, Christopher Nnamdi Adagha, Oghenefejiro Sanubi, Jovita Oghenenyerhovwo Pierre, Hardin Aaron Jn Onwukaa, Maureen Obieh, Simon 7 Seiten Aquakultur Fischfutter Fische Jungtiere Wasserlinse Colossoma macropomum publishedVersion eissn:2363-6033 No. 1 Journal of Agriculture and Rural Development in the Tropics and Subtropics (JARTS) Vol.125 false
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