Fish Feed augmentation possible using Black Soldier Fly larvae.

A three-day hands on training on sustainable fish feed production technology using Black Soldier Fly, ‘Hermetia illucens’ (BSF) larvae (BSFL) has been launched by the ICAR-Central Marine Fisheries Research Institute (CMFRI). The training is aimed at empowering beneficiaries of CMFRI’s Scheduled Caste Sub Plan (SCSP) with practical knowledge and skills in sustainable feed formulation and production techniques for cage fish and bio-floc farming practices.

The fish feed using BSF larvae is effective to support fish growth in aquaculture making it a viable substitute for conventional feed ingredients such as fish meal and soybean. BSF larvae is a nutrient rich and eco-friendly alternative protein source.

CMFRI Director Dr Grinson George, who inaugurated the training on ‘National Fish Farmers Day’ yesterday said this initiative is part of CMFRI’s ongoing efforts to enhance livelihood opportunities for marginalised coastal communities through targeted capacity building. “The cost of feed is a major factor in fish farming, making up 40-60% of total operational cost in general. This is even higher in an intensive farming system. Hence, cost effective pellet feed preparation is crucial to increase profit from cage and bio-floc fish farming, which are becoming popular livelihood options for many, including women”, he said.

“The participants will be trained in processing BSF larvae into fish feed, showcasing its potential to reduce dependency on conventional fish meal and promote circular economy practices in coastal aquaculture“, he added.

Under the SCSP scheme, CMFRI supports fish farmers belonging to the SC community to undertake cost-effective coastal aquaculture practices including cage fish farming and bio-floc farming.

BSFL are nutrient rich, and a good source of protein (40-45%), fats, amino acids, and other vital nutrients, making them a suitable substitute for fish meal. Being sustainable, as BSFL can be efficiently raised on organic waste, reducing reliance on traditional feed ingredients and minimizing waste.

Studies have shown that BSFL-based feed can improve the feed conversion ratio (FCR) in fish, meaning they can convert feed into body mass more efficiently, potentially leading to cost savings. Moreover, BSFL can promote the growth and health of farmed fish by providing a balanced and nutritious diet. The BSFL can help improve the immune system of fish, potentially making them more resistant to diseases.

This type of feeding has gained momentum in other countries after Zimbabwe introduced it in 2023.

Team Maverick