Integrated Dairy Duckweed and Aquaculture Systems for Smallholder Farmers in NW Bangladesh: A Scoping Study
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The scoping study on the Integrated Dairy–Duckweeds and Aquaculture System (IDAS), conducted in
Rangpur and Kurigram districts under the CGIAR Sustainable Animal and Aquatic Food Systems
(SAAF) program, explored the feasibility of linking dairy cattle, duckweed cultivation, pond
aquaculture, and fodder production into a closed-loop nutrient cycle. This integrated model
addresses three interconnected challenges: high feed costs, underutilized dairy cattle urine, and
rising greenhouse gas emissions. In the proposed system, liquid manure from dairy cattle urine
fertilize ponds for duckweed cultivation; duckweed serves as a protein-rich feed for fish; and
nutrient-rich pond sludge is recycled into fodder plots, reducing dependence on chemical fertilizers.
Such integration strengthens household food security, lowers production costs, and contributes to
climate-smart aquaculture.
Citation
Barman, B. K. Ali, M. S. Haque, A. B. M. M. Parvez, I. Khatun, A. Selim, A. S. M. & Nahiduzzaman, M. (2025). Scoping study on Integrated Dairy and Aquaculture System. Scoping report. WorldFish, Dhaka, Bangladesh.
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Author(s) ORCID(s)
Benoy Kumar Barman https://orcid.org/0000-0003-0554-2207
Mohammad Shawquat Ali https://orcid.org/0000-0001-8214-0194
A.B.M. Mahfuzul Haque https://orcid.org/0000-0002-5334-5630
Md Nahiduzzaman https://orcid.org/0000-0002-5152-992X
Mohammad Shawquat Ali https://orcid.org/0000-0001-8214-0194
A.B.M. Mahfuzul Haque https://orcid.org/0000-0002-5334-5630
Md Nahiduzzaman https://orcid.org/0000-0002-5152-992X
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WorldFish (WorldFish)
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Contributes to SDGs
