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http://krishi.icar.gov.in/jspui/handle/123456789/72697
Title: | Optimization of photoperiodism on growth and survival of Clarias batrachus (Linnaeus, 1758) larvae. |
Other Titles: | Not Available |
Authors: | Siju R, Tiwari VK, Nayak SK, Babitha Rani PA |
ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
Author's Affiliated institute: | ICAR: Central Institute of Fisheries Education |
Published/ Complete Date: | 2020-02-01 |
Project Code: | Not Available |
Keywords: | Clarias batrachus, larvae, photoperiod, growth, survival |
Publisher: | Not Available |
Citation: | Not Available |
Series/Report no.: | Not Available; |
Abstract/Description: | Effect of photoperiod on growth and survival of Clarias batrachus (Linnaeus, 1758) larvae were studied under Five different photoperiodic conditions: 24L (hrs. light):0D (hrs. dark) (T1), 18L: 6D (T2), 6L: 18D (T3), 0L: 24D (T4), 12L: 12D (C). Average body weight (542.60±11.89 mg), specific growth rate (SGR) (7.43±0.04) and percentage weight gain (PWG) (4010.6±50.10) obtained in T3 (6L: 18D) photoperiodic condition was found to be significantly (p<0.05) higher than other treatments. The allometric coefficient “b” obtained is higher for T3 (6L: 18D) and T4 (0L: 24D) which indicates more larval growth potential. The polynomial 2-parameter model indicated the best fit to explain and predict body weight and length of larvae with the increase in age. Higher growth and survival is recorded in 6L:18D which can be attributed to better feed intake, higher melatonin synthesis and suppression of swimming activity and stress in dark condition. The photoperiod (6L: 18D) may be recommended as a simple, low-cost technique to maximize the hatchery production of C. batrachus larvae. |
Description: | Not Available |
ISSN: | Not Available |
Type(s) of content: | Research Paper |
Sponsors: | Not Available |
Language: | English |
Name of Journal: | Journal of Entomology and Zoology Studies |
Journal Type: | International |
Volume No.: | 8(2) |
Page Number: | 398-403 |
Name of the Division/Regional Station: | Not Available |
Source, DOI or any other URL: | Not Available |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/72697 |
Appears in Collections: | FS-CIFE-Publication |
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