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Study of feeding strategy and crucial morphological changes of Artemia under indoor mass culture conditions
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Yulong LU1, 2, Xinhua WU3, Xinrong YAN1, 2, Xuerui WAN1, 2, Kaoshuai DONG1, 2, Haoran MA1, 2, Meirong GAO1, 2, Liying SUI1, 2
Journal of Fishery Sciences of China | 2025, 32(12) : 1798 - 1807
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Journal of Fishery Sciences of China | 2025, 32(12): 1798-1807
Study of feeding strategy and crucial morphological changes of Artemia under indoor mass culture conditions
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Yulong LU1, 2, Xinhua WU3, Xinrong YAN1, 2, Xuerui WAN1, 2, Kaoshuai DONG1, 2, Haoran MA1, 2, Meirong GAO1, 2, Liying SUI1, 2
Affiliations
  • 1Tianjin University of Science and Technology, Tianjin 300457, China
  • 2Asian Regional Artemia Reference Center, Tianjin 300457, China
  • 3National Joint Breeding Platform of Shrimp, Binzhou 256600, Shandong China
doi: 10.12264/JFSC2025-0054
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This study explored a feeding strategy for the indoor mass culture of high-quality and uniform-size Artemia and clarified the crucial stages for morphological changes in Artemia in high-density culture. First, Artemia franciscana cysts from the Great Salt Lake, USA, were hatched and cultured in 100 L conical tanks for 4 days at an initial density of 1 ind./mL. Freshly cultured microalgae Isochrysis galbana was used as the basic diet. Subsequently, Artemia were transferred to 10 L conical tanks at an initial density of 0.5 ind./mL and fed shrimp feed with a size of 25–30 μm. Feeding was conducted at three levels, with total feed amounts of 3.33 g, 6.70 g, and 10.02 g, and three replicates were performed. The results showed that with total feeding amounts of 6.70 g and 10.02 g, the body length and biomass of Artemia were significantly higher than those with a total feeding amount of 3.33 g (P < 0.05). During the culture process, the overall variation trends of ${\rm{NO}}_2^ - - {\rm{N}}$, ${\rm{NH}}_4^ + - {\rm{N}}$, and total nitrogen (TN) contents were consistent. The ${\rm{NO}}_2^ - - {\rm{N}}$ and ${\rm{NH}}_4^ + - {\rm{N}}$ contents in each group remained at a low level (0.01– 0.04 mg/L and 0–0.12 mg/L, respectively). However, the variation trends of ${\rm{NO}}_3^ - - {\rm{N}}$ differed. With a feeding amount of 3.33 g, the content of ${\rm{NO}}_3^ - - {\rm{N}}$ increased from 0.33 mg/L to 0.53 mg/L; with a feeding amount of 6.70 g, the content of ${\rm{NO}}_3^ - - {\rm{N}}$ increased from 0.33 mg/L to 0.39 mg/L; and with a feeding amount of 10.02 g, the content of ${\rm{NO}}_3^ - - {\rm{N}}$ decreased from 0.33 mg/L to 0.28 mg/L. At the end of culture, the contents of TN in the groups with feeding amounts of 3.33 g, 6.70 g, and 10.02 g reached 7.46 mg/L, 8.69 mg/L, and 15.95 mg/L, respectively. Subsequently, the feeding amount of 6.70 g per 10 L group was applied to the culture of Artemia in a 1-ton water column for 13 days. Two critical stages, namely, the appendage development period and the second antenna degeneration period, were identified during the culture process, which was characterized by a sudden drop in survival rate. On day 13, the survival rate of Artemia was 72.3%, the average body length was 7.24 mm, and the total biomass reached 2230 g. The crude protein content of the biomass was 52.28% dry weight, the crude fat content was 17.64% dry weight, and the eicosapentaenoic Acid (EPA) content was 7.56 mg/g dry weight, all of which were higher than those of biomass collected from Bohai Bay salt ponds. In conclusion, using microalgae with a small size and easy digestibility in the early stage of Artemia culture, followed by an appropriate amount of formulated feed, can achieve a stable biomass yield. Artemia density changes should be closely monitored at the critical stages during the culture process. The results of this study not only provide strategic guidance for the indoor mass Artemia culture but also offer a methodological reference for obtaining a stable number of healthy Artemia in scientific research when using Artemia as experimental animals.

Artemia culture  /  feeding strategy  /  survival rate  /  biomass  /  water quality  /  nutrition analysis
Yulong LU, Xinhua WU, Xinrong YAN, Xuerui WAN, Kaoshuai DONG, Haoran MA, Meirong GAO, Liying SUI. Study of feeding strategy and crucial morphological changes of Artemia under indoor mass culture conditions[J]. Journal of Fishery Sciences of China, 2025 , 32 (12) : 1798 -1807 . DOI: 10.12264/JFSC2025-0054
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Year 2025 volume 32 Issue 12
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doi: 10.12264/JFSC2025-0054
  • Receive Date：2025-03-04
  • Online Date：2026-06-10
Article Data
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  • Received：2025-03-04
  • Revised：2025-03-17
Affiliations
    1Tianjin University of Science and Technology, Tianjin 300457, China
    2Asian Regional Artemia Reference Center, Tianjin 300457, China
    3National Joint Breeding Platform of Shrimp, Binzhou 256600, Shandong China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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