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Title: | Efeito do fotoperíodo sobre a composição do filé de juvenis de tilápia do Nilo |
Other Titles: | Effect of photoperiod on filet composition of Nile tilapia juveniles |
Keywords: | Peixes - Composição corporal Oreochromis niloticus Retenção de nutrientes Fish - Body composition Nutrient retention |
Issue Date: | 2014 |
Publisher: | Universidade Federal de Goiás |
Citation: | VERAS, G. C. et al. Efeito do fotoperíodo sobre a composição do filé de juvenis de tilápia do Nilo. Ciência Animal Brasileira, Goiânia, v. 15, n. 2, p. 168-173, abr./jun. 2014. |
Abstract: | This study aimed to evaluate the effect of the photoperiod on the fillet composition of Nile tilapia juveniles. We employed a completely randomized design with five treatments (0L:24D, 6L:18D, 12L:12D, 18L:6D, 24L:0D) and four replications. We used 160 Nile tilapia juveniles, distributed in 20 tanks containing 20 liters of water, in a recirculation systems, at controlled temperature of 27 ºC and density of eight fish per tank. Fish were fed twice a day with commercial extruded feed containing 40% crude protein. Samples of the fillet at the end of 75 days were collected and stored in a freezer at -80 ºC for subsequent analysis of chemical composition. There was no effect of photoperiod on moisture and ash content of the fillet (P>0.05). The period 18L:6D showed higher amounts of protein in the fillet, as well as lower amounts of fat (P<0.05). Therefore, it can be concluded that the photoperiod can alter Nile tilapia body composition, and the photoperiod 18L:6D contributed to the higher concentration of crude protein and lower fat deposition in Nile tilapia fillets. |
URI: | http://repositorio.ufla.br/jspui/handle/1/39212 |
Appears in Collections: | DZO - Artigos publicados em periódicos |
Files in This Item:
File | Description | Size | Format | |
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ARTIGO_Efeito do fotoperíodo sobre a composição do filé de juvenis de tilápia do Nilo.pdf | 170,2 kB | Adobe PDF | View/Open |
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