Trickle down system for aquaculture extension. Fish culture in undrainable rural ponds
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| Main Authors: | , |
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| Format: | Texto biblioteca |
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| Published: |
(np)
nd
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| Subjects: | FISH CULTURE, EXTENSION ACTIVITIES, FISH PONDS, DRAINAGE, PISCICULTURE, PISCICULTURA, VULGARISATION, ETANG DE PISCICULTURE, EXTENSION, ESTANQUES PISCICOLAS, DRENAJE, |
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