Issue |
E3S Web Conf.
Volume 442, 2023
International Seminar on Fish and Fisheries Sciences (ISFFS 2023)
|
|
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Article Number | 02021 | |
Number of page(s) | 12 | |
Section | Aquaculture | |
DOI | https://doi.org/10.1051/e3sconf/202344202021 | |
Published online | 09 November 2023 |
Quality determination of pacific white shrimp (Litopenaeus vannamei) postlarvae using salinity shock, thermal hock, and formaldehyde dipping
Research Center for Fishery, National Research and Innovation Agency, Indonesia
* Corresponding author: jokosumarwan90@gmail.com
The methods of determination for Pacific white shrimp (Litopenaeus vannamei) postlarvae/PL quality were not well recognized by the user or the PLs producer. The objectives of these trials were to determine the correlation of salinity shock, thermal shock, and formaldehyde (37%) dipping (dose and duration) to the survival rate/SR of PLs 10. The thermal shock was conducted at 9, 12, 15, and 18 oC. Salinity shock was conducted with 0, 5, 10, and 15 ppt. Formaldehyde dipping was accomplished with 300, 600, 900, and 1.200 ppm. The survival rate (SR) of tested PLs was observed every 15 minutes for 60 minutes. The results showed that PLs demonstrated 100% survival in all salinity test levels but 0 ppt, which caused a decrease in SR after 30 minutes and longer exposures. The lowest threshold for temperature stress was 15 oC with 90% SR. The PLs demonstrated 90% of SR at below 600 ppm of formaldehyde stress test at all exposure durations. The findings of this study provide basic information for shrimp farmers regarding the threshold level for salinity, temperature, and formaldehyde stress during aquaculture handlings.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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