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Lima,Eduardo Cesar Rodrigues de; Souza,Rafael Liano de; Girao,Pamela Jenny Montes; Braga,Ítalo Felipe Mascena; Correia,Eudes de Souza. |
ABSTRACT The aim of this work was to evaluate the effects of using different sources of organic carbon on water quality, growth performance and the acceptability of Nile tilapia (Oreochromis niloticus) fillets grown in a biofloc system. The experiment was carried out over 145 days at the Aquaculture Station of the Federal Rural University of Pernambuco, Brazil. Fish of 72.6 ± 6.83 g were stored (35 fish m-3) in 19 circular tanks (800 L) in a completely randomised experimental design with three treatments, including as a source of carbon, sugar (SUG), liquid molasses (MOL) and molasses powder (MOP), each with five replications, and one control treatment (CTL) without bioflocs, with four replications. Dissolved oxygen concentrations were significantly higher... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tilapia culture; Sustainability; Chitralada; Molasses; Fillets. |
Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902018000300458 |
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Souza,Rafael Liano de; Lima,Eduardo Cesar Rodrigues de; Melo,Fabiana Penalva de; Ferreira,Maria Gabriela Padilha; Correia,Eudes de Souza. |
ABSTRACT The influence of water salinity on the culture of Nile tilapia with biofloc was evaluated using indicators of water quality, zootechnical performance and animal welfare. Five treatments of different salinities were adopted (0, 4, 8, 12 and 16 g L-1) with three replications. The tilapia were cultured for 90 days and stocked in glass fiber tanks (800 L) at a density of 30 fish m-3 with a mean initial weight of 93.8 ± 0.89 g. Water temperature, chlorophyll-a, sedimentable solids and total suspended solids showed no difference between salinities (p>0.05). The levels of total ammonia nitrogen (3.94 mg L-1) and nitrite nitrogen (0.82 mg L-1) were lower at the salinity of 0 g L-1 compared to the highest salinity (16 g L-1) (p≤0.05). The final weight... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fish farming; Brackish water; Microbial floc; Oreochromis niloticus. |
Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000200267 |
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