A recent feed trial has found that supplementing Nile tilapia diets with bakers’ yeast (Saccharomyces cerevisiae) can change the fishes’ intestinal morphology, leading to improved nutrient uptake, immune responses and growth performance.
While insect production is likely to grow significantly in the coming years, it will be vital for the aquafeed industry to make the most out of what is likely to remain a fairly niche ingredient and not treat it as a simple substitute for fishmeal or soy.
Petter M Johannessen, director general of the IFFO, believes that marine ingredients play a crucial role in developing aquafeeds with a low carbon footprint.
Hatch and Conservation International (CI) have put 10 female-led aquaculture businesses through their paces as part of their first-ever Women in Aquaculture Innovation Studio programme.
As the aquaculture industry expands, it needs every feed option – both conventional and alternative – at its disposal. But what steps can the sector take to bring sustainable feed ingredients online?
Indonesia’s aquafeed producers – be they industrial players or farmers who produce feed independently – are increasingly looking towards the use of local and sustainable alternatives to fish meal and soy.
Novel means of improving shrimp health – including the use of alternative feed ingredients – are due to be the subject of a short, free webinar taking place on 10 November.
Organised by The Fish Site and Calysta, the event has been inspired by trials …
Shrimp fed diets containing FeedKind, a novel microbial protein produced by Calysta, have been shown to be more resistant to Vibrio parahaemolyticus – the source of early mortality syndrome (EMS).
“Rabbitfish have amazing potential for small-scale sustainable aquaculture across the tropics: they are easy to grow have high local demand and they are herbivorous and feed on a variety of freely-available feeds.”
The aquaculture industry must continue in its quest to become more sustainable, with greater use of seaweeds in aquafeeds and production of herbivorous fish among two of the most promising avenues to achieve this.
A review of the latest scientific studies by Alune* suggests that fish meal inclusion in shrimp feeds can be significantly reduced, offering hope for a more sustainable shrimp farming sector.
If soy has such negative impact on the environment, why is it still used in salmon feeds? Many new ingredients are being developed, why don’t we see a bigger change in the feed composition?
