Fabrication and in-pond operation of a low-cost, semiautomated portable carp hatchery with a temperature-adjustability feature
| Autor: | Atom Arun Singh, Rekha Das, Himanshu Priyadarshi, Satya Prakash, Arun Bhai Patel, Pramod Pandey |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Ecology biology Hatching Environmental engineering 04 agricultural and veterinary sciences Aquatic Science biology.organism_classification Zooplankton Hatchery Filter (aquarium) Fishery Labeo 03 medical and health sciences 030104 developmental biology 040102 fisheries 0401 agriculture forestry and fisheries Labeo bata Carp Surface water |
| Zdroj: | Journal of Applied Aquaculture. 29:233-244 |
| ISSN: | 1545-0805 1045-4438 |
| DOI: | 10.1080/10454438.2017.1363111 |
| Popis: | The present study describes a simple, portable, and inexpensive in-pond hatchery model assembled from locally available materials for seed production of small and medium-sized carp at high efficiency. This light-weight hatchery requires minimal engineering skills for assembly and operation. Further, the hatchery water supply mechanism has built-in components to filter out sediments and zooplankton from the pond water besides maintaining the water temperature 5°C–7°C lower than the pond surface water by drawing water from a metalimnion layer without additional energy requirements. Spontaneous spawning, automatic transfer of eggs to the incubation tank, and 80% hatching rates at an egg-holding capacity of 2,000 eggs/L was recorded for Barbonymus gonionotus, Labeo bata, and Labeo rohita with minimal human intervention. The production capacity of 0.06 million fry per cycle and estimated benefit-cost ratio of 2.48 demonstrated the high efficiency and economic feasibility of this portable hatchery. |
| Databáze: | OpenAIRE |
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