TCC - Bacharelado em Engenharia de Pesca (UAST)
URI permanente para esta coleçãohttps://arandu.ufrpe.br/handle/123456789/2938
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Resultados da Pesquisa
Item Produção de camarão marinho Litopenaeus vannamei (Boone, 1931) em sistema super intensivo com tecnologia de biofloco na Estação Marinha de Aquicultura da Universidade Federal do Rio Grande(2020-09-21) Morais, Julio Gabriel Cordeiro de; Silva, Ugo Lima; http://lattes.cnpq.br/1858876631961029; http://lattes.cnpq.br/2106503604382871This work aimed to describe how activities performed during the period of Mandatory Supervised Internship, required for examining a Bachelor's degree in Fisheries Engineering. This way, it presents the experience acquired in the production of Pacific white shrimp (Litopenaeus vannamei) in biofloc technology (BFT), with low water exchange. The internship took place at the Marine Aquaculture Station of the Federal University of Rio Grande (EMA-FURG), from March 16th to May 27th, in 2020. It was possible to monitor the activities and identify the infrastructure needed for the production and the grow-out phase of the shrimp in BFT, from the acquisition of the juveniles until the harvesting of the animals. Several management procedures were also realized, such as calculations related to feeding management, liming, and fertilization, as well as their applications, water quality monitoring, data analyses for decision making, among other activities. Participations in different scientific experiments were also carried out in the Station, further expanding the experience and knowledge acquired, which provided a professional improvement and a practical application of theoretical knowledge.Item Biometria e qualidade de água de alevinos de curimatã em diferentes fotoperíodos(2020-09-18) Morais, Julio Gabriel Cordeiro de; Souza, Luciana Sandra Bastos de; http://lattes.cnpq.br/1186468548787818; http://lattes.cnpq.br/2106503604382871This study aimed to analyze the biometrics and water quality of a curimatã crop in different photoperiods. The work was developed at the Serra Talhada Academic Unit (UAST). Three polypropylene boxes were placed inside a wooden structure covered with canvas, to avoid interference from external lighting. Inside each box, 3 tanks with a useful volume of 15 L were placed to carry out the experiment, with a stocking density of 2 animals/L. The lighting conditions were represented with fluorescent lamps of 30 W, which were controlled by analog timers. The treatments were represented by three different light conditions: 0Light (L): 24Dark (D), 12L: 12D (control) and 24L: 0D. Each tank received individual aeration through an air compressor and porous stones. A feed frequency with six daily feeds was adopted, with commercial powdered feed containing 55% crude protein, at a feed rate of 10% of the animals' live weight. The following variables were monitored daily: temperature (T), dissolved oxygen (OD), saturated oxygen (OS), salinity (SAL) and pH. At the end of the experiment, biometrics were performed, with which it was obtained: 1) Final number of individuals; 2) Longitudinal length; 3) Average width and; 4) Final weight. With these data, the growth parameters were obtained: biomass gain (GB, g), specific growth rate (TCR,% .day-1 ), survival (%) and the Fulton condition factor (K). The water quality parameters showed mean values equal to T = 24.3 ° C, OS = 69%, OD = 5.6 mg/L and pH = 7.7-7.8 for temperature, saturated oxygen, dissolved oxygen and pH, respectively. The specific growth rates were different, being 0.61, 0.55 and 1.56% for treatments 0L:24D, 12L:12D e 24L:0D. Exposure to photoperiod did not affect the biometric and water quality parameters of fingerlings, but exposure to 24C: 0E significantly improved the specific growth rate (TCE) of the species, which can help in the handling conditions of this fish species.