Publication: Growth Performance of Triploid Red Tilapia Reared Under Laboratory Conditions
Issued Date
2013-04-01
Resource Type
ISSN
15450805
10454438
10454438
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2-s2.0-84879138807
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Mahidol University
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SCOPUS
Bibliographic Citation
Journal of Applied Aquaculture. Vol.25, No.2 (2013), 176-189
Suggested Citation
Padmaja J. Pradeep, Thekkeparambil C. Srijaya, Anuar Hassan, Anil K. Chatterji, Rajeev Raghavan, Boonsirm Withyachumnarnkul, Andrew Jeffs Growth Performance of Triploid Red Tilapia Reared Under Laboratory Conditions. Journal of Applied Aquaculture. Vol.25, No.2 (2013), 176-189. doi:10.1080/10454438.2013.793131 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/31044
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Title
Growth Performance of Triploid Red Tilapia Reared Under Laboratory Conditions
Abstract
Triploidy could reduce breeding activity in tilapia without the use of hormones. In this study, the effect of triploidy on survival, growth, and gender of a line of red hybrid tilapia (Oreochromis mossambicus X Oreochromis niloticus) was assessed relative to the performance of diploid siblings. Triploidy was induced by preventing second polar body extrusion by applying either heat or cold shock. Growth was similar for both ploidies during the first 90 days of culture. However, at the age of 120 days, the average body weight of triploids produced by heat shock (215.5 ± 3.61 g) was significantly higher than that of cold shock (192.7 ± 2.6 g) and the diploid control (191.9 ± 1.74 g). Survival among triploids was inferior to diploids. Percentage of males in the triploid population was 82.9% in the heat-shocked treatment group, 54.8% in the cold-shock treatment, and 50% in the diploid control. Maximum attainable weight of red tilapia was calculated by applying the Ford-Walford growth plot: 650 g (heat-shocked triploids), 490 g (cold-shocked triploids), and 440 g in the diploid control. © 2013 Copyright Taylor and Francis Group, LLC.