Brazil fish culture identification mission, draft report

Bard Jacques. 1978. Brazil fish culture identification mission, draft report. Nogent-sur-Marne : GERDAT, 60 p.

Résumé : Two of the crops given by products which are used for rearing fish: cotton and rice since they are processed close by the perimeter area. The other crops do not leave any valuable by product. Nor does animal husbandry since it is limited to some cows. From this results that the "colonist'' has practically no possibility of producing the feeds or fertilizer for a fish pond. Nor has he any possibility of building a fish pond of his own since the plot of land he disposes is small 4 to 5 ha and anyway he will not have sufficient water for the pond (5 litres per hectare per second are necessary for a pond). So, the only possible pattern of intensive fish culture is the large cooperative or perimeter owned pond producing fish through intensive feeding. Those ponds would be built on dead or salted land i e land too poor to produce agricultural crop provided there is enough water for fish culture (that is the case in Morada Nova, Lima Campos and perhaps in Pentecoste perimeter). An operational scheme is described below. The operations were purposedly simplified to make the work easier for the beginning. In particular a once-a-year cycle of fish production is suggested which would allow the perimeter to market without hurry 600 to 800g individual weight Sarotherodon hybrid which would meet easy demand.

Auteurs et affiliations

• Bard Jacques

Source : Cirad-Agritrop (https://agritrop.cirad.fr/607676/)

Métriques

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