Estudo das espécies de peixes cultivadas no Núcleo de Piscicultura do Centro de Ciências Agrárias da Universidade Federal de Alagoas

Abstract

ABSTRACT: It is a fact that many concerns revolve around food security and global sustainability. For this fact fish farming is pointed out as an alternative. The study aimed to know and describe how fish species are cultivated at the Fish culture Center of the Agricultural Sciences Center of the Federal University of Alagoas (CECA/UFAL), the routine of daily handling of this creation and the importance for fish farming in Alagoas in the current scenario. The study was conducted based on visits to the Fish culture Center of the Agricultural Science Center Campus Rio Largo, from May to September 2019, in Semi-intensive System and the technical data were collected in loco and in the scientific literature. The water quality indicators evaluated ware temperature, pH and ammonia twice weekly. Fish farming is maintained and managed by zootechnicians trained at CECA with partnersships between the company Junior, the municipality of Rio Largo and the Development Company of the Valleys of São Francisco and Parnaíba (Codevasf) and has as its flagship production of Nile tilapia fry. New species have been introduced for breeding and polyculture purposes. The breeding lots were formed and divided according to the species and can be relocated depending on the need and objective of the management. The fish were fed with commercial feed and level of crude protein (CP) corresponding to each species and stage of creation, a fixed portion per biomass. In this study, it was not possible to evaluate productive data of the species that were in the juvenile stage, to be subsequently selected for a new breeding stage phase. The fish harvest in the polyculture was defined to be completed in eight months, with no possibility of follow-up. The specie observed is of great socioeconomic potential for Alagoas and for Brazil, especially tilapia and betting on species diversification as an economically viable safety factor, given the environmental influences on food production. It should be considered that the CECA’s fish farming has been consolidated in tilapiculture for ten years and played an important role, which was the donation of tilapia fry to family farmers and to the Food Acquisition Program (PAA) in the municipality of Rio Largo, what differentiates it compared to traditional fish farms.

KEYWORDS: Fry, Pisciculture, Polyculture.