Effects of dietary canthaxanthin on growth and body colour of blood parrot cichlid Amphilophus citrinellus × Paraneetroplus synspilus

A 6-week experiment was carried out to evaluate the effects of diets containing 0, 0.004, 0.008, 0.012 and 0.016 % synthetic canthaxanthin on growth, feed utilization and skin pigmentation of parrot cichlid (Amphilophus citrinellus × Paraneetroplus synspilus). Three hundred and sixty fish with init...

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Main Authors:	Li, M., Rahman, Mohammad Mustafizur, Wu, Biao, Lin, Y. C.
Format:	Article
Language:	English English English
Published:	Springer 2017
Subjects:	SH Aquaculture. Fisheries. Angling
Online Access:	http://irep.iium.edu.my/53781/ http://irep.iium.edu.my/53781/ http://irep.iium.edu.my/53781/ http://irep.iium.edu.my/53781/1/53781_Effects%20of%20dietary%20canthaxanthin%20on%20growth.pdf http://irep.iium.edu.my/53781/2/53781_Effects%20of%20dietary%20canthaxanthin%20on%20growth_SCOPUS.pdf http://irep.iium.edu.my/53781/3/53781_Effects%20of%20dietary%20canthaxanthin%20on%20growth_MYRA.pdf

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spelling	iium-537812018-04-19T09:11:04Z http://irep.iium.edu.my/53781/ Effects of dietary canthaxanthin on growth and body colour of blood parrot cichlid Amphilophus citrinellus × Paraneetroplus synspilus Li, M. Rahman, Mohammad Mustafizur Wu, Biao Lin, Y. C. SH Aquaculture. Fisheries. Angling A 6-week experiment was carried out to evaluate the effects of diets containing 0, 0.004, 0.008, 0.012 and 0.016 % synthetic canthaxanthin on growth, feed utilization and skin pigmentation of parrot cichlid (Amphilophus citrinellus × Paraneetroplus synspilus). Three hundred and sixty fish with initial body weights of 18.0 ± 1.6 g were randomly stocked equally into 15 glass aquaria (each 80 9 40 9 50 cm3) to form five triplicate groups. Fish were fed one of five diets daily at 2 % of their total body weight. At the end of the experiment, all fish were harvested and weighed to calculate growth parameters. After weighing, randomly selected two fish from each aquarium were used to assess the body colour using a colorimeter. Results indicated that dietary canthaxanthin supplementation had no effect on growth, feed conversion ratio, ingestion rate and condition factor of parrot cichlid. The degree of pigmentation in skin of parrot cichlid increased significantly (P\0.05) with increasing inclusion of canthaxanthin up to 0.012 % in the diet. Canthaxanthin inclusion over that level did not lead to increase more redness, yellowness, hue and chroma of parrot cichlid skin. Diet containing more than 0.012 % canthaxanthin even decreased redness of fish skin (16 % decreased) compared to diet containing 0.012 % canthaxanthin (18.67 ± 0.32). In the present study, observations based on the effects of various canthaxanthin levels on colour parameters suggest that the diet containing a 0.012 % canthaxanthin may be considered as the best level of canthaxanthin supplementation for best skin colouration of parrot cichlid. Springer 2017-04-01 Article PeerReviewed application/pdf en http://irep.iium.edu.my/53781/1/53781_Effects%20of%20dietary%20canthaxanthin%20on%20growth.pdf application/pdf en http://irep.iium.edu.my/53781/2/53781_Effects%20of%20dietary%20canthaxanthin%20on%20growth_SCOPUS.pdf application/pdf en http://irep.iium.edu.my/53781/3/53781_Effects%20of%20dietary%20canthaxanthin%20on%20growth_MYRA.pdf Li, M. and Rahman, Mohammad Mustafizur and Wu, Biao and Lin, Y. C. (2017) Effects of dietary canthaxanthin on growth and body colour of blood parrot cichlid Amphilophus citrinellus × Paraneetroplus synspilus. Aquaculture International, 25 (2). pp. 705-713. ISSN 0967-6120 E-ISSN 1573-143X https://link.springer.com/article/10.1007/s10499-016-0068-z 10.1007/s10499-016-0068-z
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English English
topic	SH Aquaculture. Fisheries. Angling
spellingShingle	SH Aquaculture. Fisheries. Angling Li, M. Rahman, Mohammad Mustafizur Wu, Biao Lin, Y. C. Effects of dietary canthaxanthin on growth and body colour of blood parrot cichlid Amphilophus citrinellus × Paraneetroplus synspilus
description	A 6-week experiment was carried out to evaluate the effects of diets containing 0, 0.004, 0.008, 0.012 and 0.016 % synthetic canthaxanthin on growth, feed utilization and skin pigmentation of parrot cichlid (Amphilophus citrinellus × Paraneetroplus synspilus). Three hundred and sixty fish with initial body weights of 18.0 ± 1.6 g were randomly stocked equally into 15 glass aquaria (each 80 9 40 9 50 cm3) to form five triplicate groups. Fish were fed one of five diets daily at 2 % of their total body weight. At the end of the experiment, all fish were harvested and weighed to calculate growth parameters. After weighing, randomly selected two fish from each aquarium were used to assess the body colour using a colorimeter. Results indicated that dietary canthaxanthin supplementation had no effect on growth, feed conversion ratio, ingestion rate and condition factor of parrot cichlid. The degree of pigmentation in skin of parrot cichlid increased significantly (P\0.05) with increasing inclusion of canthaxanthin up to 0.012 % in the diet. Canthaxanthin inclusion over that level did not lead to increase more redness, yellowness, hue and chroma of parrot cichlid skin. Diet containing more than 0.012 % canthaxanthin even decreased redness of fish skin (16 % decreased) compared to diet containing 0.012 % canthaxanthin (18.67 ± 0.32). In the present study, observations based on the effects of various canthaxanthin levels on colour parameters suggest that the diet containing a 0.012 % canthaxanthin may be considered as the best level of canthaxanthin supplementation for best skin colouration of parrot cichlid.
format	Article
author	Li, M. Rahman, Mohammad Mustafizur Wu, Biao Lin, Y. C.
author_facet	Li, M. Rahman, Mohammad Mustafizur Wu, Biao Lin, Y. C.
author_sort	Li, M.
title	Effects of dietary canthaxanthin on growth and body colour of blood parrot cichlid Amphilophus citrinellus × Paraneetroplus synspilus
title_short	Effects of dietary canthaxanthin on growth and body colour of blood parrot cichlid Amphilophus citrinellus × Paraneetroplus synspilus
title_full	Effects of dietary canthaxanthin on growth and body colour of blood parrot cichlid Amphilophus citrinellus × Paraneetroplus synspilus
title_fullStr	Effects of dietary canthaxanthin on growth and body colour of blood parrot cichlid Amphilophus citrinellus × Paraneetroplus synspilus
title_full_unstemmed	Effects of dietary canthaxanthin on growth and body colour of blood parrot cichlid Amphilophus citrinellus × Paraneetroplus synspilus
title_sort	effects of dietary canthaxanthin on growth and body colour of blood parrot cichlid amphilophus citrinellus × paraneetroplus synspilus
publisher	Springer
publishDate	2017
url	http://irep.iium.edu.my/53781/ http://irep.iium.edu.my/53781/ http://irep.iium.edu.my/53781/ http://irep.iium.edu.my/53781/1/53781_Effects%20of%20dietary%20canthaxanthin%20on%20growth.pdf http://irep.iium.edu.my/53781/2/53781_Effects%20of%20dietary%20canthaxanthin%20on%20growth_SCOPUS.pdf http://irep.iium.edu.my/53781/3/53781_Effects%20of%20dietary%20canthaxanthin%20on%20growth_MYRA.pdf
first_indexed	2023-09-18T21:16:04Z
last_indexed	2023-09-18T21:16:04Z
_version_	1777411570857410560

Effects of dietary canthaxanthin on growth and body colour of blood parrot cichlid Amphilophus citrinellus × Paraneetroplus synspilus

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