Optimal factors for egg hatchability and larvae development of Barbus altianalis under captivity
Abstract Five experiments were conducted to identify optimal temperature, light, water depth, and hatching facility suitable for the hatchability of Barbus altianalis embryos and larval growth. In experiment I, eggs were incubated at 24, 27, and 30°C with and without aeration. In experiment II, eggs...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2023-08-01
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| Series: | Journal of the World Aquaculture Society |
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| Online Access: | https://doi.org/10.1111/jwas.12923 |
| _version_ | 1797759846453346304 |
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| author | Cassius Aruho Bridget Kimera Richard Ddungu Rose Komugisha Basiita Fred Bugenyi Justus Rutaisire |
| author_facet | Cassius Aruho Bridget Kimera Richard Ddungu Rose Komugisha Basiita Fred Bugenyi Justus Rutaisire |
| author_sort | Cassius Aruho |
| collection | DOAJ |
| description | Abstract Five experiments were conducted to identify optimal temperature, light, water depth, and hatching facility suitable for the hatchability of Barbus altianalis embryos and larval growth. In experiment I, eggs were incubated at 24, 27, and 30°C with and without aeration. In experiment II, eggs were incubated in conical jars, re‐circulating and glass tanks at 27°C. In experiment III, eggs were incubated at lux values of 54.2 ± 5.5 and 10,701.8 ± 2224.3 SD. In experiment IV, eggs on trays were placed at the bottom of glass tank (60 cm depth) and others at the surface. In experiment V, six old day larvae were treated at 24, 27, 30, and 31°C. Results indicated that optimal embryo hatchability ranged from 92.9 ± 2.0% to 94.1 ± 2.9% (no aeration) at 24°C and 89.3 ± 1.0% to 91.8 ± 0.8% SE at 27°C (aeration) in two trials. Re‐circulating (84.3%) and glass tanks (80.3%) were more suitable for hatching than conical jars (37.2%). Optimal larvae growth and survival were attained at 30°C (207.4 ± 16.3 mg SE; 78.9 ± 2.0% SD). No differences were observed in egg hatchability with light and water depth treatments (p > 0.05). These results will guide farmers to produce sufficient and quality B. altianalis seeds for farming. |
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| id | doaj.art-2f4b814f49ce48d9bae91e670921c68c |
| institution | Directory Open Access Journal |
| issn | 0893-8849 1749-7345 |
| language | English |
| last_indexed | 2024-03-12T18:50:20Z |
| publishDate | 2023-08-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of the World Aquaculture Society |
| spelling | doaj.art-2f4b814f49ce48d9bae91e670921c68c2023-08-02T07:15:23ZengWileyJournal of the World Aquaculture Society0893-88491749-73452023-08-0154482884310.1111/jwas.12923Optimal factors for egg hatchability and larvae development of Barbus altianalis under captivityCassius Aruho0Bridget Kimera1Richard Ddungu2Rose Komugisha Basiita3Fred Bugenyi4Justus Rutaisire5National Fisheries Resources Research Institute, Aquaculture Research and Development Center Kampala UgandaNational Fisheries Resources Research Institute, Aquaculture Research and Development Center Kampala UgandaNational Fisheries Resources Research Institute, Aquaculture Research and Development Center Kampala UgandaWorld Fish Centre Zambia Lusaka ZambiaDepartment of Biological Science College of Natural Sciences, Makerere University Kampala UgandaNational Agriculture Research Organisation Entebbe UgandaAbstract Five experiments were conducted to identify optimal temperature, light, water depth, and hatching facility suitable for the hatchability of Barbus altianalis embryos and larval growth. In experiment I, eggs were incubated at 24, 27, and 30°C with and without aeration. In experiment II, eggs were incubated in conical jars, re‐circulating and glass tanks at 27°C. In experiment III, eggs were incubated at lux values of 54.2 ± 5.5 and 10,701.8 ± 2224.3 SD. In experiment IV, eggs on trays were placed at the bottom of glass tank (60 cm depth) and others at the surface. In experiment V, six old day larvae were treated at 24, 27, 30, and 31°C. Results indicated that optimal embryo hatchability ranged from 92.9 ± 2.0% to 94.1 ± 2.9% (no aeration) at 24°C and 89.3 ± 1.0% to 91.8 ± 0.8% SE at 27°C (aeration) in two trials. Re‐circulating (84.3%) and glass tanks (80.3%) were more suitable for hatching than conical jars (37.2%). Optimal larvae growth and survival were attained at 30°C (207.4 ± 16.3 mg SE; 78.9 ± 2.0% SD). No differences were observed in egg hatchability with light and water depth treatments (p > 0.05). These results will guide farmers to produce sufficient and quality B. altianalis seeds for farming.https://doi.org/10.1111/jwas.12923eggshatching facilityincubationlarvaetemperature |
| spellingShingle | Cassius Aruho Bridget Kimera Richard Ddungu Rose Komugisha Basiita Fred Bugenyi Justus Rutaisire Optimal factors for egg hatchability and larvae development of Barbus altianalis under captivity Journal of the World Aquaculture Society eggs hatching facility incubation larvae temperature |
| title | Optimal factors for egg hatchability and larvae development of Barbus altianalis under captivity |
| title_full | Optimal factors for egg hatchability and larvae development of Barbus altianalis under captivity |
| title_fullStr | Optimal factors for egg hatchability and larvae development of Barbus altianalis under captivity |
| title_full_unstemmed | Optimal factors for egg hatchability and larvae development of Barbus altianalis under captivity |
| title_short | Optimal factors for egg hatchability and larvae development of Barbus altianalis under captivity |
| title_sort | optimal factors for egg hatchability and larvae development of barbus altianalis under captivity |
| topic | eggs hatching facility incubation larvae temperature |
| url | https://doi.org/10.1111/jwas.12923 |
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