Cracking the code of hatchery-based mass production of mola (Amblypharyngodon mola) seed for nutritionsensitive aquaculture
Introduction: 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...
| Autores principales: | , , , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
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Frontiers Media
2023
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| Acceso en línea: | https://hdl.handle.net/10568/140398 |
| _version_ | 1855517371424309248 |
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| author | Rajts, Francois Dubey, Sourabh Kumar Gogoi, Kalpajit Das, Rashmi Ranjan Biswal, Saurava Kumar Padiyar, Arun Panemangalore Rajendran, Suresh Thilsted, Shakuntala H. Mohan, Chadag Vishnumurthy Belton, Ben |
| author_browse | Belton, Ben Biswal, Saurava Kumar Das, Rashmi Ranjan Dubey, Sourabh Kumar Gogoi, Kalpajit Mohan, Chadag Vishnumurthy Padiyar, Arun Panemangalore Rajendran, Suresh Rajts, Francois Thilsted, Shakuntala H. |
| author_facet | Rajts, Francois Dubey, Sourabh Kumar Gogoi, Kalpajit Das, Rashmi Ranjan Biswal, Saurava Kumar Padiyar, Arun Panemangalore Rajendran, Suresh Thilsted, Shakuntala H. Mohan, Chadag Vishnumurthy Belton, Ben |
| author_sort | Rajts, Francois |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Introduction: 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. |
| format | Journal Article |
| id | CGSpace140398 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | Frontiers Media |
| publisherStr | Frontiers Media |
| record_format | dspace |
| spelling | CGSpace1403982025-12-08T10:29:22Z Cracking the code of hatchery-based mass production of mola (Amblypharyngodon mola) seed for nutritionsensitive aquaculture Rajts, Francois Dubey, Sourabh Kumar Gogoi, Kalpajit Das, Rashmi Ranjan Biswal, Saurava Kumar Padiyar, Arun Panemangalore Rajendran, Suresh Thilsted, Shakuntala H. Mohan, Chadag Vishnumurthy Belton, Ben innovation retinol aquaculture carp trace elements amblypharyngodon mola fish breeding Introduction: 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. 2023-10-16 2024-03-14T12:09:27Z 2024-03-14T12:09:27Z Journal Article https://hdl.handle.net/10568/140398 en Open Access Frontiers Media Rajts, 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 |
| spellingShingle | innovation retinol aquaculture carp trace elements amblypharyngodon mola fish breeding Rajts, Francois Dubey, Sourabh Kumar Gogoi, Kalpajit Das, Rashmi Ranjan Biswal, Saurava Kumar Padiyar, Arun Panemangalore Rajendran, Suresh Thilsted, Shakuntala H. Mohan, Chadag Vishnumurthy Belton, Ben Cracking the code of hatchery-based mass production of mola (Amblypharyngodon mola) seed for nutritionsensitive aquaculture |
| title | Cracking the code of hatchery-based mass production of mola (Amblypharyngodon mola) seed for nutritionsensitive aquaculture |
| title_full | Cracking the code of hatchery-based mass production of mola (Amblypharyngodon mola) seed for nutritionsensitive aquaculture |
| title_fullStr | Cracking the code of hatchery-based mass production of mola (Amblypharyngodon mola) seed for nutritionsensitive aquaculture |
| title_full_unstemmed | Cracking the code of hatchery-based mass production of mola (Amblypharyngodon mola) seed for nutritionsensitive aquaculture |
| title_short | Cracking the code of hatchery-based mass production of mola (Amblypharyngodon mola) seed for nutritionsensitive aquaculture |
| title_sort | cracking the code of hatchery based mass production of mola amblypharyngodon mola seed for nutritionsensitive aquaculture |
| topic | innovation retinol aquaculture carp trace elements amblypharyngodon mola fish breeding |
| url | https://hdl.handle.net/10568/140398 |
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