Effect of dietary soy-lecithin on growth and body composition of Indian black tiger shrimp Penaeus monodon (Fabricius, 1798) reared under hyperosmotic stress condition


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Authors

  • J. Syama Dayal Central Institute of Brackishwater Aquaculture Chennai
  • R. Jannathulla Aquatic Research Center, Ministry of Municipality
  • K. Ambasankar ICAR-Central Institute of Brackishwater Aquaculture
  • H. Imran Khan ICAR-Central Institute of Brackishwater Aquaculture
  • E. P. Madhubabu ICAR-Central Institute of Brackishwater Aquaculture
  • M. Muralidhar ICAR-Central Institute of Brackishwater Aquaculture

https://doi.org/10.21077/ijf.2023.70.1.121096-13

Abstract

 Sixty days feeding trial was conducted to study the effect of dietary soy-lecithin (phosphatidylcholine) as a source of
phospholipids on the growth performance of Penaeus monodon (Fabricius, 1798) reared at hyperosmotic stress conditions
(40‰) in indoor tanks. Four experimental diets viz., DL-1 (Control), DL-1.5, DL-2 and DL-2.5 were formulated by including
soy-lecithin at the rate of 1, 1.5, 2 and 2.5%, respectively. The results revealed that the daily growth coefficient (DGC)
significantly (p<0.05) increased from 1.44 to 1.67% day-1 when the inclusion levels were increased from 1 to 2.5%. The
relative growth rate (RGR) was significantly (p<0.05) high in the groups fed on DL-2 and DL-2.5 diets than in the groups
fed other diets (DL-1 and DL-1.5). Compared to DL-1, all the other diets (DL-1.5, DL-2 and DL-2.5) had increased DGC
by 7.81, 11.06 and 15.89% and decreased feed conversion ratio (FCR) by 8.70, 8.83 and 9.56%, respectively. The dietary
treatments had no significant difference in survival (75.56-82.22%) and carcass composition except body lipid, which was
significantly (p<0.05) high (3.66%) in DL-2 and DL-2.5 fed groups compared to DL-1 and DL-1.5 (3.25-3.42%). Carcass
phospholipids increased (p<0.05) from 61.96 to 69.69% with increasing dietary soy-lecithin levels, while triacylglycerides
(p>0.05) and cholesterol (p>0.05) were not affected. The inclusion levels of soy-lecithin had no significant influence on the
fatty acid composition of P. monodon except for C16:0 and C18:2c, which were high (p<0.05) in the groups fed DL-2 and
DL-2.5 diets. Results concluded that soy-lecithin as a source of phospholipids can be more effective at hyperosmotic stress
conditions and could be included at >2.5% in the diet of P. monodon.

Keywords: Carcass composition, Hyperosmotic stress, Penaeus monodon, Phospholipids, Salinity, Soy-lecithin

Author Biographies

  • J. Syama Dayal, Central Institute of Brackishwater Aquaculture Chennai

    Nuttrition, Genetics and Biotechnology Division

    Principal Scientist

  • R. Jannathulla, Aquatic Research Center, Ministry of Municipality

    Aquatic Research Center, Al-Khor

  • K. Ambasankar, ICAR-Central Institute of Brackishwater Aquaculture

    Nutrition, Genetics and Biotechnology Division

  • H. Imran Khan, ICAR-Central Institute of Brackishwater Aquaculture

    Nutrition, Genetics and Biotechnology Division

  • E. P. Madhubabu, ICAR-Central Institute of Brackishwater Aquaculture

    Nutrition, Genetics and Biotechnology Division

  • M. Muralidhar, ICAR-Central Institute of Brackishwater Aquaculture

    Aquatic Animal Health and Environment Division

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Submitted

2022-02-04

Published

2023-03-31

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Section

Articles

How to Cite

J. Syama Dayal, R. Jannathulla, K. Ambasankar, H. Imran Khan, E. P. Madhubabu, & M. Muralidhar. (2023). Effect of dietary soy-lecithin on growth and body composition of Indian black tiger shrimp Penaeus monodon (Fabricius, 1798) reared under hyperosmotic stress condition. Indian Journal of Fisheries, 70(1). https://doi.org/10.21077/ijf.2023.70.1.121096-13