Rare Earth Global, the company behind the initiative and growers of industrial hemp for a range of sustainable products, has received more than £260,000 in funding from the UK Seafood Innovation Fund (SIF) for a full-scale research and development project which will include a two-month feed assessment.
Last year there was a study conducted that set out to explore how hemp seeds could be used to feed farmed salmon in Scotland. Two types of hemp meals were tested against a range of factors such as digestibility, fish growth, and the effect on gut health, finding that the ingredient had a comparable nutritional profile with soy and fishmeal.
The next stage of testing involves monitoring how fish perform over the long term when fed hemp seed protein. The company has the support of the Sustainable Aquaculture Innovation Centre (SAIC) and the University of Stirling’s Institute of Aquaculture. Mowi, the global producer of Atlantic salmon, will support the formulation and production of the feed, while farmers in Angus and Aberdeenshire will grow the crops.
Suneet Shivaprasad, director and co-founder of Rare Earth Global, said: “The first feasibility trial returned positive results for the viability of hemp seed protein as a core aquaculture feed ingredient, and we are now testing whether it could be included on a commercial scale. Further research will enable us to look at a range of other factors over a longer time period, with the aim of demonstrating that this novel protein can be a success.
“Locally grown, plant-based ingredients are already more environmentally friendly than any imported soy or fishmeal but our zero waste approach to growing it also ensures that every part of the hemp plant is used for maximum value. In this case, the seeds will be used as a protein source for aquaculture, while the stalks will be used for sustainable construction materials, bioplastics and bioenergy feedstocks.”
Rare Earth Global is working with a range of farming cooperatives and family run farms in Scotland, Yorkshire, Lincolnshire and Hertfordshire to develop the supply of the raw material throughout the UK. Up to two tonnes of hemp seed can be produced per hectare of the crop.
Monica Betancor, associate professor at the University of Stirling’s Institute of Aquaculture, said: “By conducting a two-month feed trial we hope to prove that hemp protein can serve as a direct replacement for soy in terms of digestibility, nutrition and growth. From what we have seen already, it has only had a positive impact on the salmon involved in our first trials.”
Sarah Riddle, director of innovation and engagement at SAIC, said: “It is great to see the research team taking the development of a new plant-based feed to the next stages. There are opportunities here for new UK-based supply chains to emerge, reducing our reliance on imported ingredients and lessening the overall environmental footprint of aquaculture while increasing its economic contribution. It is also highly positive to see a company that is new to the aquaculture sector collaborating with world-class researchers and major producers to turn an innovative idea into a reality.”
Photo by marnock
