TCC - Bacharelado em Engenharia de Pesca (UAST)
URI permanente para esta coleçãohttps://arandu.ufrpe.br/handle/123456789/2938
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Item Atividades aquícolas no laboratório de experimentação de organismos aquáticos, UFRPE, UAST, Serra Talhada-PE(2019) Silva, Weverson Ailton da; Silva, Ugo Lima; http://lattes.cnpq.br/1858876631961029; http://lattes.cnpq.br/8320689687057292Item Berçário de camarão Litopenaeus vannamei(BONNE, 1931) cultivado em água oligohalina com tecnologia de biofloco sob diferentes densidades de estocagem(2018) Silva, Weverson Ailton da; Silva, Ugo Lima; http://lattes.cnpq.br/1858876631961029; http://lattes.cnpq.br/8320689687057292The present work evaluated the culture of the marine shrimp Litopenaeus vannameiin the nursery stage submitted to different storage densities in a biofloco system. The cultivation of post-larvae of L. vannameimarine shrimp in biofloc technology was carried out at the Laboratory of Experimentation of Aquatic Organisms of the Federal Rural University of Pernambuco (UFRPE), during the 28-day period. A completely randomized design with three treatments was adopted: D2: 2 shrimps. L-1, D4: 4 shrimps. L-1and D6: 6 shrimps. L-1, with four replicates. Twelve tanks with a useful volume of 15 L of water were used. As post-larvae with initial weight 0.005 ± 0.001 g were fed commercial feed containing 40% crude protein, with a frequency of 3 times a day and feed rate of 10% of the biomass. Fertilizations were done with the daily use of the maintenance schedule of 15: 1 (C: N). During the cultivation were monitored as having success and were identified the types of light and temperature (ºC), dissolved oxygen (mg L-1), conductivity (μS Cm-1), salinity (g L-1), pH, total dissolved solids, total ammoniacal nitrogen (N-NAT), nitrite (N-NO2), nitrate (N-NO3), inorganic phosphate (P-PO4), sedimentable solids (SS) and alkalinity. The performance of the post-larvae was obtained through the comparison of final weight (mg), survival (%), food replacement factor (FCA), condition index, TCE (% -1) and weekly growth (mg). Differences were found not to be a factorof feed conversion and of post-larvae production. Despite the final weight values, survival and weekly evolution differed significantly between treatments (P> 0.05). The results of the results, with respect to one crop were reached when cultivated in the post-larvae of 4 post-larvae L-1, as it was in many treatments (P <0.05). Biofloc technology is a good alternative for the shrimp nursery, bringing high productivity and greater sustainability, especially in semi-arid regions with little availability of water. The adoption of storage densities from 2000 to 6,000 PL. m-3of L. vannameidid not significantly influence the physical chemical variables of water quality.