Feed ingredients

Researchers in China caution that some commercial probiotics for the aquaculture industry may be mislabelled, and also contain cytotoxins and antibiotic resistance genes that can be passed to other organisms.

Though insect protein startups are generating splashy headlines and bringing new players into the aquafeed industry, single-cell and microbial proteins might be a key feed component in the future.

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.

Why optimal ionic composition and ratios in low salinity water and diet formulation is vital for the normal physiological functions of Penaeid shrimp.

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.”