Effects of enclosure colour on growth performance of Clarias gariepinus fry
The effect of five enclosure colour on the production of Clarias gariepinus fry at post- yolk absorption stage were examined in the indoor hatchery during the first phase of exogenous feeding. A total of 3600 C. gariepinus fry (mean weight, 6.3 ~c 0.00 mg) were stocked into 15,56 litres capacity laboratory plastic bowls. Tank colours evaluated were black, blue, green, white and maroon. Frys were fed on zooplankton ad-libitum. Results indicated that tank colour had significant impact (P<0.05) on the weight of C. gariepinus fry. However, percentage survival was significantly higher (P < 0.05) in black (86.67 %) than in white and maroon (56.67% and 66.67 % respectively). Survival in the black tanks ( 86.67 %) was not significantly different ( P > 0.05) than the blue and green tanks treatments but was significantly higher ( P > 0.05) than the blue and green tanks treatments. Based on the results, it is obvious that the background enclosure colour has effects on the growth and survival of fry in the indoor rearing system. A general tendency of higher fry growth and survival in dark colour backgrounds was evident. This could have a significant financial impact on commercial fingerlings production of C. gariepinus as fish hatchery operators in Nigeria do not currently take into consideration the colour of tanks use for the rearing of fry in the indoor hatchery.
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Language: | English |
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FISON
2009
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Subjects: | Aquaculture, Clarias gariepinus, Nigeria, freshwater environment, Fish culture, Growth rate, |
Online Access: | http://hdl.handle.net/1834/38049 |
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dig-aquadocs-1834-380492021-07-14T01:59:31Z Effects of enclosure colour on growth performance of Clarias gariepinus fry Dada, A.A. Aquaculture Clarias gariepinus Nigeria freshwater environment Fish culture Growth rate The effect of five enclosure colour on the production of Clarias gariepinus fry at post- yolk absorption stage were examined in the indoor hatchery during the first phase of exogenous feeding. A total of 3600 C. gariepinus fry (mean weight, 6.3 ~c 0.00 mg) were stocked into 15,56 litres capacity laboratory plastic bowls. Tank colours evaluated were black, blue, green, white and maroon. Frys were fed on zooplankton ad-libitum. Results indicated that tank colour had significant impact (P<0.05) on the weight of C. gariepinus fry. However, percentage survival was significantly higher (P < 0.05) in black (86.67 %) than in white and maroon (56.67% and 66.67 % respectively). Survival in the black tanks ( 86.67 %) was not significantly different ( P > 0.05) than the blue and green tanks treatments but was significantly higher ( P > 0.05) than the blue and green tanks treatments. Based on the results, it is obvious that the background enclosure colour has effects on the growth and survival of fry in the indoor rearing system. A general tendency of higher fry growth and survival in dark colour backgrounds was evident. This could have a significant financial impact on commercial fingerlings production of C. gariepinus as fish hatchery operators in Nigeria do not currently take into consideration the colour of tanks use for the rearing of fry in the indoor hatchery. Includes:- 3 tables.;10refs. 2021-06-24T18:09:44Z 2021-06-24T18:09:44Z 2009 conference_item TRUE http://hdl.handle.net/1834/38049 en http://www.fison.org.ng/ application/pdf application/pdf 22-24 FISON Akure (Nigeria) http://aquaticcommons.org/id/eprint/23325 19325 2018-04-06 16:01:51 23325 Fisheries Society of Nigeria |
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Aquaculture Clarias gariepinus Nigeria freshwater environment Fish culture Growth rate Aquaculture Clarias gariepinus Nigeria freshwater environment Fish culture Growth rate Dada, A.A. Effects of enclosure colour on growth performance of Clarias gariepinus fry |
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The effect of five enclosure colour on the production of Clarias gariepinus fry at post- yolk absorption stage were examined in the indoor hatchery during the first phase of exogenous feeding. A total of 3600 C. gariepinus fry (mean weight, 6.3 ~c 0.00 mg) were stocked into 15,56 litres capacity laboratory plastic bowls. Tank colours evaluated were black, blue, green, white and maroon. Frys were fed on zooplankton ad-libitum. Results indicated that tank colour had significant impact (P<0.05) on the weight of C. gariepinus fry. However, percentage survival was significantly higher (P < 0.05) in black (86.67 %) than in white and maroon (56.67% and 66.67 % respectively). Survival in the black tanks ( 86.67 %) was not significantly different ( P > 0.05) than the blue and green tanks treatments but was significantly higher ( P > 0.05) than the blue and green tanks treatments. Based on the results, it is obvious that the background enclosure colour has effects on the growth and survival of fry in the indoor rearing system. A general tendency of higher fry growth and survival in dark colour backgrounds was evident. This could have a significant financial impact on commercial fingerlings production of C. gariepinus as fish hatchery operators in Nigeria do not currently take into consideration the colour of tanks use for the rearing of fry in the indoor hatchery. |
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conference_item |
topic_facet |
Aquaculture Clarias gariepinus Nigeria freshwater environment Fish culture Growth rate |
author |
Dada, A.A. |
author_facet |
Dada, A.A. |
author_sort |
Dada, A.A. |
title |
Effects of enclosure colour on growth performance of Clarias gariepinus fry |
title_short |
Effects of enclosure colour on growth performance of Clarias gariepinus fry |
title_full |
Effects of enclosure colour on growth performance of Clarias gariepinus fry |
title_fullStr |
Effects of enclosure colour on growth performance of Clarias gariepinus fry |
title_full_unstemmed |
Effects of enclosure colour on growth performance of Clarias gariepinus fry |
title_sort |
effects of enclosure colour on growth performance of clarias gariepinus fry |
publisher |
FISON |
publishDate |
2009 |
url |
http://hdl.handle.net/1834/38049 |
work_keys_str_mv |
AT dadaaa effectsofenclosurecolourongrowthperformanceofclariasgariepinusfry |
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1756079706866712576 |