The nutritional characteristics of Spirulina, which include a high content of plant-based proteins, essential vitamins, and carotenoids, can also be utilized in the field of ornamental aquaculture to enhance the pigmentation of goldfish (Carassius auratus) and black molly (Poecilia sphenops), according to a study by researchers from Veer Narmad South Gujarat University in India.
The research aimed to evaluate not only the effectiveness of Spirulina in terms of improving coloration but also its impact on the growth and survival rate of these fish when raised in controlled laboratory conditions. The study used an experimental design where the fish were fed diets enriched with Spirulina and compared to a control group fed with standard commercial diets.
The results obtained showed promising outcomes for the goldfish, with significant improvements in various growth and pigmentation parameters.
On the other hand, in the black molly, although survival was 100%, other parameters did not show significant improvements. This suggests that the response to the diet may vary significantly between different fish species, which could guide future research and practical applications of Spirulina in ornamental aquaculture.
In the study, the recommended amount of Spirulina in feeds for ornamental fish was 45 grams per kilogram of feed. This ratio was part of the experimental diet used to assess the effects on the growth and pigmentation of the goldfish and black molly.
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