Many studies have shown that squid oil is good for broodfish spawning performance, but these are done on marine fishes. What about freshwater broodfish? I've learnt that tilapia require linolenic and lenileic acid, what about other fishes? Do they really don't require EPA DHA?
African catfish require quality protein (sufficient amino acids mostly the essentials ) and good water conditions.
A combination of proteins and energy must be added. Emphasis should be placed on the good management of fish in terms of temperature and light because it is the most important factor in controlling reproduction and spawning,
Hi Kelvin,
as I am sure you are aware nutritional requirements for freshwater broodstock vary by species, and there is an increasing amount of data in the scientific literature. I have listed some publications (below) that you may find useful:
Article The influence of dietary arachidonic acid on growth, reprodu...
Chapter Nutritional Requirements and Feeding of Broodstock and Early...
Article Dietary taurine improves reproductive performance of Nile ti...
- http://onlinelibrary.wiley.com/doi/10.1111/raq.12025/full
- https://tspace.library.utoronto.ca/bitstream/1807/76850/1/cjz-2016-0176.pdf
Article Fatty acid requirements in ontogeny of marine and freshwater fish
Best, Marcus
You will also add the scholar topics of thyroid hormone which help the brood stock species.
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