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Effect of temperature on yolk sac utilisation and growth of newly hatched larvae of cobia Rachycentron canadum (Linnaeus, 1766)

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Title Effect of temperature on yolk sac utilisation and growth of newly hatched larvae of cobia Rachycentron canadum (Linnaeus, 1766)
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Creator Nazar,A K A
Jayakumar,R
Sakthivel,M
Sirajudeen,S
Thiagu,R
Balamurugan,V
Anbarasu,M
Kalidas,C
Ramesh Kumar,P
Tamilmani,G
Gopakumar,G
 
Subject Cobia, Larval growth, Rachycentron canadum, Temperature, Yolk-sac
 
Description Not Available
The effect of temperature on the utilisation of yolk-sac and growth in terms of length of the larvae of cobia Rachycentron canadum (Linnaeus, 1766) was investigated. Five temperature levels viz., 29, 30, 31, 32 and 33°C were experimented with the newly hatched larvae for a total duration of 52 hours post-hatch (hph). A clear-cut trend of increase in larval length with increase in temperature was noted. The maximum length recorded was 4.41±0.11 mm at 33°C by the end of the experiment. The yolk-sac volume decreased proportionately with rise in temperature. At the end of 52 hph, the lowest yolk-sac volume was recorded at temperature range of 31 to 33°C. Results of the present study suggest that temperature plays a vital role in the yolk-sac utilisation as well as on growth of cobia larvae.
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Date 2021-09-17T05:37:25Z
2021-09-17T05:37:25Z
2016
 
Type Article
 
Identifier Not Available
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http://krishi.icar.gov.in/jspui/handle/123456789/63673
 
Language English
 
Relation Not Available