Cracking the code of hatchery-based mass production of mola (Amblypharyngodon mola) seed for nutrition-sensitive aquaculture
IntroductionSmall 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 ha...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-10-01
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| Series: | Frontiers in Aquaculture |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/faquc.2023.1271715/full |
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| author | Francois Rajts Sourabh Kumar Dubey Kalpajit Gogoi Rashmi Ranjan Das Saurava Kumar Biswal Arun Panemangalore Padiyar Suresh Rajendran Shakuntala Haraksingh Thilsted Chadag Vishnumurthy Mohan Ben Belton Ben Belton |
| author_facet | Francois Rajts Sourabh Kumar Dubey Kalpajit Gogoi Rashmi Ranjan Das Saurava Kumar Biswal Arun Panemangalore Padiyar Suresh Rajendran Shakuntala Haraksingh Thilsted Chadag Vishnumurthy Mohan Ben Belton Ben Belton |
| author_sort | Francois Rajts |
| collection | DOAJ |
| description | IntroductionSmall 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.MethodsTo 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.ResultsThe 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.DiscussionThis 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. |
| first_indexed | 2024-03-11T18:15:25Z |
| format | Article |
| id | doaj.art-aee367279f104a33a526fae897dd1fa7 |
| institution | Directory Open Access Journal |
| issn | 2813-5334 |
| language | English |
| last_indexed | 2024-03-11T18:15:25Z |
| publishDate | 2023-10-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Aquaculture |
| spelling | doaj.art-aee367279f104a33a526fae897dd1fa72023-10-16T07:36:03ZengFrontiers Media S.A.Frontiers in Aquaculture2813-53342023-10-01210.3389/faquc.2023.12717151271715Cracking the code of hatchery-based mass production of mola (Amblypharyngodon mola) seed for nutrition-sensitive aquacultureFrancois Rajts0Sourabh Kumar Dubey1Kalpajit Gogoi2Rashmi Ranjan Das3Saurava Kumar Biswal4Arun Panemangalore Padiyar5Suresh Rajendran6Shakuntala Haraksingh Thilsted7Chadag Vishnumurthy Mohan8Ben Belton9Ben Belton10WorldFish, Bayan Lepas, Penang, MalaysiaWorldFish, Cuttack, Odisha, IndiaWorldFish, Guwahati, Assam, IndiaWorldFish, Cuttack, Odisha, IndiaBiswal Aquatech, Jagatsinghpur, Odisha, IndiaWorldFish, Cuttack, Odisha, IndiaWorldFish, Guwahati, Assam, IndiaWorldFish, Bayan Lepas, Penang, MalaysiaWorldFish, Bayan Lepas, Penang, MalaysiaWorldFish, Bayan Lepas, Penang, MalaysiaDepartment of Agricultural, Food, and Resource Economics, Michigan State University, East Lansing, MI, United StatesIntroductionSmall 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.MethodsTo 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.ResultsThe 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.DiscussionThis 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.https://www.frontiersin.org/articles/10.3389/faquc.2023.1271715/fullsmall indigenous fish species (SIS)mola (Amblypharyngodon mola)induced breedingenvironmental manipulationmass seed productionnutrition-sensitive aquaculture |
| spellingShingle | Francois Rajts Sourabh Kumar Dubey Kalpajit Gogoi Rashmi Ranjan Das Saurava Kumar Biswal Arun Panemangalore Padiyar Suresh Rajendran Shakuntala Haraksingh Thilsted Chadag Vishnumurthy Mohan Ben Belton Ben Belton Cracking the code of hatchery-based mass production of mola (Amblypharyngodon mola) seed for nutrition-sensitive aquaculture Frontiers in Aquaculture small indigenous fish species (SIS) mola (Amblypharyngodon mola) induced breeding environmental manipulation mass seed production nutrition-sensitive aquaculture |
| title | Cracking the code of hatchery-based mass production of mola (Amblypharyngodon mola) seed for nutrition-sensitive aquaculture |
| title_full | Cracking the code of hatchery-based mass production of mola (Amblypharyngodon mola) seed for nutrition-sensitive aquaculture |
| title_fullStr | Cracking the code of hatchery-based mass production of mola (Amblypharyngodon mola) seed for nutrition-sensitive aquaculture |
| title_full_unstemmed | Cracking the code of hatchery-based mass production of mola (Amblypharyngodon mola) seed for nutrition-sensitive aquaculture |
| title_short | Cracking the code of hatchery-based mass production of mola (Amblypharyngodon mola) seed for nutrition-sensitive aquaculture |
| title_sort | cracking the code of hatchery based mass production of mola amblypharyngodon mola seed for nutrition sensitive aquaculture |
| topic | small indigenous fish species (SIS) mola (Amblypharyngodon mola) induced breeding environmental manipulation mass seed production nutrition-sensitive aquaculture |
| url | https://www.frontiersin.org/articles/10.3389/faquc.2023.1271715/full |
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