Cracking the code of hatchery-based mass production of mola (Amblypharyngodon mola) seed for nutritionsensitive aquaculture

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dc.creatorRajts, Francois
dc.creatorDubey, Sourabh Kumar
dc.creatorGogoi, Kalpajit
dc.creatorDas, Rashmi Ranjan
dc.creatorBiswal, Saurava Kumar
dc.creatorPadiyar, Arun Panemangalore
dc.creatorRajendran, Suresh
dc.creatorThilsted, Shakuntala H.
dc.creatorMohan, Chadag Vishnumurthy
dc.creatorBelton, Ben
dc.date2023-10-16
dc.date2024-03-14T12:09:27Z
dc.date2024-03-14T12:09:27Z
dc.date.accessioned2026-06-27T15:02:38Z
dc.descriptionIntroduction: Small indigenous fish species (SIS) can be particularly rich in micronutrients and make a crucial contribution toward improving human nutrition. The introduction of mola (Amblypharyngodon mola), an SIS, which is particularly rich in vitamin A, into smallholder carp aquaculture systems has been widely promoted over the past decade as a promising nutrition-sensitive innovation. However, standardized techniques for the hatchery mass production of mola do not yet exist. We hypothesized that the lack of commercial hatchery mass-production techniques for mola seed is the key barrier limiting potential for widespread adoption of carp–SIS polyculture. Methods: To address this gap, we conducted breeding trials at a private hatchery in Odisha, India, from July to September 2022, to identify standardized methods for the hatchery-based mass production of mola seed. Breeding was induced using a synthetic gonadotropin-releasing hormone analog (SGnRHa) at 0.5 mL and 0.25 mL per kg of body weight of female fish and male fish, respectively. Fish spawned in double hapas in breeding tanks. Results: The average fertilization, spawning, and hatching rates over 10 breeding cycles were 81%, 82%, and 85%, respectively. A total of 8.5 million fertilized eggs and 6.4 million hatchlings were produced. The survival of fry during larval rearing trials at a stocking rate of 500 hatchlings/m2 was 58% after 22 days. The mola hatchlings and fry were sold to 29 farmers at prices comparable to those of Indian major carp. Discussion: This article makes a unique contribution to the literature by documenting the entire process of hatchery-based mass mola seed production, including broodfish collection and maintenance, hormone dose optimization, breeding arrangements, breeder characteristics, breeding behavior and performance fecundity, larval rearing, and seed sales to farmers. This information is intended to serve as a protocol to be followed by any individual or institution with an interest in mola breeding and represents an important contribution to the development of nutrition-sensitive aquaculture.
dc.identifierhttps://hdl.handle.net/10568/140398
dc.identifier.urihttp://hdl.handle.net/123456789/92943
dc.languageen
dc.publisherFrontiers Media
dc.rightsOpen Access
dc.sourceRajts, Francois; Dubey, Sourabh Kumar; Gogoi, Kalpajit; Das, Rashmi Ranjan; Biswal, Saurava Kumar; Belton, Ben; et al. 2023. Cracking the code of hatchery-based mass production of mola (Amblypharyngodon mola) seed for nutritionsensitive aquaculture. Frontiers in Aquaculture 2: 1271715. https://doi.org/10.3389/faquc.2023.1271715
dc.subjectinnovation
dc.subjectretinol
dc.subjectaquaculture
dc.subjectcarp
dc.subjecttrace elements
dc.subjectamblypharyngodon mola
dc.subjectfish
dc.subjectbreeding
dc.titleCracking the code of hatchery-based mass production of mola (Amblypharyngodon mola) seed for nutritionsensitive aquaculture
dc.typeJournal Article

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Instituto Internacional de Investigación sobre Políticas Alimentarias (IFPRI)