Rearing of grouper juveniles using a demand feeding system with an infrared light sensor

Demand feeding is a new feeding method that fish can feed themselves. Fish switch on the feeding device when they require food. This method has several advantages because the fish can eat when they are most motivated to feed. The system can thus minimize feed loss and reduce water pollution. In thi...

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Main Authors:	Mukai, Yukinori, Nan, Hai Tai, Rosli , Muhammad Khairulanwar
Format:	Conference or Workshop Item
Language:	English English
Published:	2013
Subjects:	SF Animal culture
Online Access:	http://irep.iium.edu.my/35031/ http://irep.iium.edu.my/35031/1/ICOSMAP_2013_Poster_2.pdf http://irep.iium.edu.my/35031/2/evidence4.pdf

id	iium-35031
recordtype	eprints
spelling	iium-350312014-01-28T06:27:09Z http://irep.iium.edu.my/35031/ Rearing of grouper juveniles using a demand feeding system with an infrared light sensor Mukai, Yukinori Nan, Hai Tai Rosli , Muhammad Khairulanwar SF Animal culture Demand feeding is a new feeding method that fish can feed themselves. Fish switch on the feeding device when they require food. This method has several advantages because the fish can eat when they are most motivated to feed. The system can thus minimize feed loss and reduce water pollution. In this study, brown-marbled grouper Epinephelus fuscoguttatus and orange-spotted grouper Epinephelus coioides juveniles were reared using demand feeding devices using the commercialized and own developed demand feeders. Ten juveniles of each species were kept in a 500 L round polyethylene tank respectively (nine tanks, 90 fish). The tanks had water running system with water change (90%) every morning. Throughout the experiment, fish were exposed to natural photoperiod. Water temperature was 28.0 – 31.5 °C and salinity was 27-28 ppt. During rearing experiment, the fish were fed with pellets (Otohime EP3, Marubeni Nisshin Feed Co. Ltd.). Three experimental groups, pendulum demand feeder group (PDF, FH221, Aquatic Eco-Systems, Inc.), infrared sensor demand feeder group (IRDF) and automatic feeder group (AF) were set with three replicates. The IRDF consisted of an infrared sensor (infrared light 860 nm) ending in a red pellet-like knob with food container. Both demand feeders (PDF and IRDF) were set to dispense 10-15 pellets when fish activated the trigger (pendulum rod and infrared sensor respectively) located 2 cm below the water surface. We checked the fish circadian rhythm to determine the feeding time for the automatic feeder. The automatic feeder (AF) was set to dispense 150-170 pellets at 08:00 and 17:00 h. The experiment lasted for 25 days. Fish growth rates; total length (TL), and body weight (BW) were compared. Results of brown-marbled grouper juvenile experiments showed TL growth rates of IRDF group were significantly higher than that of PDF group (P<0.05), however, BW growth rates were similar among three groups. Results of orange-spotted grouper juvenile experiments showed no significant differences in TL and BW growth rates among three groups, but TL and BW of IRDF group showed higher tendency than that of AF and PDF groups. 2013-10 Conference or Workshop Item PeerReviewed application/pdf en http://irep.iium.edu.my/35031/1/ICOSMAP_2013_Poster_2.pdf application/pdf en http://irep.iium.edu.my/35031/2/evidence4.pdf Mukai, Yukinori and Nan, Hai Tai and Rosli , Muhammad Khairulanwar (2013) Rearing of grouper juveniles using a demand feeding system with an infrared light sensor. In: International Conference on Oceanography and Sustainable Marine Production: A Challenge of Managing Marine Resources in a Changing Climate, 28-30 October 2013, Kuantan, Malaysia.
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English
topic	SF Animal culture
spellingShingle	SF Animal culture Mukai, Yukinori Nan, Hai Tai Rosli , Muhammad Khairulanwar Rearing of grouper juveniles using a demand feeding system with an infrared light sensor
description	Demand feeding is a new feeding method that fish can feed themselves. Fish switch on the feeding device when they require food. This method has several advantages because the fish can eat when they are most motivated to feed. The system can thus minimize feed loss and reduce water pollution. In this study, brown-marbled grouper Epinephelus fuscoguttatus and orange-spotted grouper Epinephelus coioides juveniles were reared using demand feeding devices using the commercialized and own developed demand feeders. Ten juveniles of each species were kept in a 500 L round polyethylene tank respectively (nine tanks, 90 fish). The tanks had water running system with water change (90%) every morning. Throughout the experiment, fish were exposed to natural photoperiod. Water temperature was 28.0 – 31.5 °C and salinity was 27-28 ppt. During rearing experiment, the fish were fed with pellets (Otohime EP3, Marubeni Nisshin Feed Co. Ltd.). Three experimental groups, pendulum demand feeder group (PDF, FH221, Aquatic Eco-Systems, Inc.), infrared sensor demand feeder group (IRDF) and automatic feeder group (AF) were set with three replicates. The IRDF consisted of an infrared sensor (infrared light 860 nm) ending in a red pellet-like knob with food container. Both demand feeders (PDF and IRDF) were set to dispense 10-15 pellets when fish activated the trigger (pendulum rod and infrared sensor respectively) located 2 cm below the water surface. We checked the fish circadian rhythm to determine the feeding time for the automatic feeder. The automatic feeder (AF) was set to dispense 150-170 pellets at 08:00 and 17:00 h. The experiment lasted for 25 days. Fish growth rates; total length (TL), and body weight (BW) were compared. Results of brown-marbled grouper juvenile experiments showed TL growth rates of IRDF group were significantly higher than that of PDF group (P<0.05), however, BW growth rates were similar among three groups. Results of orange-spotted grouper juvenile experiments showed no significant differences in TL and BW growth rates among three groups, but TL and BW of IRDF group showed higher tendency than that of AF and PDF groups.
format	Conference or Workshop Item
author	Mukai, Yukinori Nan, Hai Tai Rosli , Muhammad Khairulanwar
author_facet	Mukai, Yukinori Nan, Hai Tai Rosli , Muhammad Khairulanwar
author_sort	Mukai, Yukinori
title	Rearing of grouper juveniles using a demand feeding system with an infrared light sensor
title_short	Rearing of grouper juveniles using a demand feeding system with an infrared light sensor
title_full	Rearing of grouper juveniles using a demand feeding system with an infrared light sensor
title_fullStr	Rearing of grouper juveniles using a demand feeding system with an infrared light sensor
title_full_unstemmed	Rearing of grouper juveniles using a demand feeding system with an infrared light sensor
title_sort	rearing of grouper juveniles using a demand feeding system with an infrared light sensor
publishDate	2013
url	http://irep.iium.edu.my/35031/ http://irep.iium.edu.my/35031/1/ICOSMAP_2013_Poster_2.pdf http://irep.iium.edu.my/35031/2/evidence4.pdf
first_indexed	2023-09-18T20:50:21Z
last_indexed	2023-09-18T20:50:21Z
_version_	1777409952488357888

Rearing of grouper juveniles using a demand feeding system with an infrared light sensor

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