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ผู้เขียน หัวข้อ: Malaysia; High returns from grouper breeding  (อ่าน 2516 ครั้ง)
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« เมื่อ: มกราคม 30, 2007, 03:48:28 PM »

Source: Bernama  World News    30/01/2007 18:53:33



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Nordin Mahadi

With its thick, large dorsal fin, physically the kerapu or grouper ranks among the "unappealing" marine fish to the public.



Many prefer the other fishes like aya (tuna), tamban (sardinella), tenggiri (Spanish mackerel), bawal (pomfret), selar kuning (yellow-banded scad) and selayang (round scad).



But the scenario is different now due to the increasing demand for the grouper, tipped to become the country's major commercially cage-reared marine fish by 2010.



Based on the kerapu's (Epinephelus) market potential, easy management of its breeding and the fish's suitability to Malaysia's climate, the Fisheries Department is embarking on a major project to mass-produce this commercial marine fish.



There are various species of kerapu. The spotted and banded type is called kerapu hijau (Epinephelus coioides).



The others are kerapu harimau (Epinephelus fuscoguttatus), kerapu pisang (Plectropomus leopardus), kerapu sunoh (Plectropomus maculatus) and kerapu tikus (Cromeleptis altivelis).



KERAPU KERTANG



The department has however picked kerapu kertang (Epinephelus lanceolatus) for its commercial breeding project at the Marine Fish Research and Breeding Centre (Pusat Penyelidikan dan Pembiakan Ikan Laut or PPPIL) at Tanjung Demong here in Terengganu as this fish is among those that have high commercial value.



The centre's head Hussin Mat Ali said PPPIL aimed to produce 122,000 tonnes of kerapu kertang by 2010.



To achieve this target, it has to produce 100 million grouper fry from 2,200 kerapu 'induk' or parent fish to be distributed to caged-fish breeders nationwide within this period.



"The grouper lives and survives anywhere in the world, and the kertang species is chosen as the fish incurs lower costs for caged-breeding compared witn the other grouper types", Hussin told Bernama recently.



EASY TO BREED



"Breeding the fish is not much of a hassle as it can be bred in enclosures or open tanks with controlled water supply," he added.



He said the kerapu kertang could grow up to 400kg in weight and 2.0 metres in length within a short time. However, the fish can be harvested and sold the moment it reaches 1.5kg, fetching RM60 to RM70 a kg.



"Currently, the PPPIL has more than 30 kerapu kertang 'induk', each weighing over 400kg and is used for breeding," he added.



Apart from kerapu, the centre is also trying to mass-produce some 100 million siakap fry, 150 million ikan merah fry and 50 million cobia fry. spat.



It is estimated that Terengganu now has some 150 caged-marine fish breeders, each earning about RM3,000 a month.



Hussin said the "hatchery" and Recirculating Aquaculture System technology were expected to boost their harvest and earnings as aquaculture fish was in demand in European countries.



RESEARCH



He said work to mass-produce marine fish fry began in Malaysia in the early 70's but stalled a decade later, causing many breeders to shun the project.



To make matters worse, the breeders turned to neighbouring countries to get their fish fry, causing aquaculture diseases to be brought into the country.



Aware of these issues, the Fisheries Research Institute revived the research programme in 1982 and the project was later moved to the Tanjung Demong PPPIL which started operations in 1984.



MARINE FISH FRY



From 1990-1998, the PPPIL conducted various researches on the orange-spotted grouper, jenahak (golden snapper), siakap merah (mangrove red snapper), kerapu harimau (brown marbled grouper) and bawal emas (golden pomfret).



The success of the Gondol Research Institute of Marineculture (GRIM) in Bali, Indonesia, to commercially produce marine fish fry has prompted the PPPIL to be equally successful.



"We are confident of matching Asia's major fish industry nations like China-Hong Kong, Taiwan, Japan, Indonesia dan Thailand with a well-structured programme within four years," said Hussin.

Source or related URL: http://www.bernama.com.my
 
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