University of Guilan Aquatic Physiology and Biotechnology 2345-3966 12 3 2024 12 20 Comparative investigation of protein level and growth and survival in Artemia franciscana fed with Spirulina algae powder and Dunaliella algae in laboratory condition Comparative investigation of protein level and growth and survival in Artemia franciscana fed with Spirulina algae powder and Dunaliella algae in laboratory condition 1 21 8428 10.22124/japb.2024.25821.1517 FA Reza Roshandel Ph.D. Student in Fisheries, Faculty of Natural Resources, Urmia University, Urmia, Iran Ramin Manaffar Associate Professor in Fisheries Department, Faculty of Natural Resources, Urmia University, Urmia, Iran Saeed Meshkiniy Associate Professor in Food Hygiene and Quality Control Department, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran Journal Article 2023 10 17 Artemia is the most important live food in aquaculture. Considering its mass cultivation, easy usability, and nutritional value in fish farming, the effect of Spirulina platensis and Dunaliella salina algae on the growth, survival, and total protein of Artemia franciscana were evaluated. For this purpose, Artemia was cultured in laboratory conditions with a combination of yeast and Spirulina powder in five different treatments (20, 40, 60, 80 and 100% Spirulina powder and yeast) compared to the control treatment (100% Dunaliella algae and yeast). The results showed that there were significant differences in growth in treatments with 40, 60, 80 and 100% Spirulina powder, and survival in the 100% Spirulina powder treatment, compared to the control (P<0.05). The investigation of the first molt in each treatment revealed that the 100% Spirulina powder treatment had the earliest molting time, which was consistent with the total protein content of the treatments. According to the results, the best treatment in terms of growth, survival, time to first molt and total protein content was the 100% Spirulina powder treatment. Therefore, Artemia cultivation with Spirulina is scientifically and economically justified. Artemia is the most important live food in aquaculture. Considering its mass cultivation, easy usability, and nutritional value in fish farming, the effect of Spirulina platensis and Dunaliella salina algae on the growth, survival, and total protein of Artemia franciscana were evaluated. For this purpose, Artemia was cultured in laboratory conditions with a combination of yeast and Spirulina powder in five different treatments (20, 40, 60, 80 and 100% Spirulina powder and yeast) compared to the control treatment (100% Dunaliella algae and yeast). The results showed that there were significant differences in growth in treatments with 40, 60, 80 and 100% Spirulina powder, and survival in the 100% Spirulina powder treatment, compared to the control (P<0.05). The investigation of the first molt in each treatment revealed that the 100% Spirulina powder treatment had the earliest molting time, which was consistent with the total protein content of the treatments. According to the results, the best treatment in terms of growth, survival, time to first molt and total protein content was the 100% Spirulina powder treatment. Therefore, Artemia cultivation with Spirulina is scientifically and economically justified.

https://japb.guilan.ac.ir/article_8428_a8c8e6c39859ca5bded011e7e0f08a45.pdf