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| Application of LED Lighting in Pacific White Shrimp Litopenaeus vannamei Culture |
| SUN Yan1,2,3, MA He1,2, LIU Ying1,4 |
1. Key Laboratory of Facility Aquaculture, Ministry of Education (Dalian Ocean University), Dalian 116023, China;
2. College of Ocean Science and Environment, Dalian Ocean University, Dalian 116023, China;
3. Foshan Electrical Lighting Co., Ltd., Foshan 528000, China;
4. College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China |
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Abstract In order to explore the feasibility of applying LED-specific artificial lighting technology in culture of Pacific white shrimp Litopenaeus vannamei, the effects of three specific light (1000 lx artificial supplementary light, 600 lx artificial supplementary light,and a natural light control group) environments under actual farming conditions were compared for 83 days. The artificial supplementary light treatments involved nocturnal illumination (18:00—06:00 daily) superimposed on ambient daylight. Growth performance and muscle quality metrics of L. vannamei were compared across groups to evaluate the efficacy of LED-based lighting technology in industrial aquaculture. Results demonstrated that the final body weight of L. vannamei in the 1000 lx and 600 lx artificial supplementary light groups was (17.08±0.06) g and (16.89±0.20) g, respectively, both exceeding that of the natural light group (13.75±0.42) g, though the differences were not statistically significant (P>0.05). There was no significant difference in overall nutritional composition of muscle quality of L. vannamei among the 1000 lx and 600 lx artificial supplementary light groups and the natural light group (P>0.05). However, in terms of fatty acids, the content of saturated fatty acids (SFA) in the 1000 lx artificial supplementary light group was significantly higher than that in the 600 lx artificial supplementary light group and the natural light group (P<0.05). The total content of polyunsaturated fatty acids (PUFA) in the 1000 lx artificial supplementary light group was significantly lower than that in the 600 lx artificial supplementary light group and the natural light group (P<0.05). The total content of EPA+DHA in the 1000 lx artificial supplementary light group was significantly lower than that in the 600 lx artificial supplementary light group and the natural light group (P<0.05). These findings indicate that establishing a specific artificial lighting environment can effectively accelerate the growth of L. vannamei and substantially enhance the profitability of industrialized farming. Comprehensive analysis suggests that nocturnal supplemental lighting at 600 lx is recommended for L. vannamei aquaculture, as it optimally balances growth promotion with the preservation of nutritionally valuable fatty acid profiles.
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Received: 09 May 2024
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