Efeito do fotoperíodo sobre a composição do filé de juvenis de tilápia do Nilo

Galileu Crovatto Veras; Luis David Solis Murgas; Marcio Gilberto Zangeronimo; Priscila Vieira Rosa; José Rafael Miranda; Marcos Ferreira Brabo

doi:10.1590/1809-6891v15i22238

EFFECT OF PHOTOPERIOD ON FILET COMPOSITION OF NILE TILAPIA JUVENILES

Authors

Galileu Crovatto Veras Universidade Federal do Pará (UFPA), Bragança, Pará, Brasil
Luis David Solis Murgas Universidade Federal de Lavras (UFLA), Lavras, Minas Gerais, Brasil
Marcio Gilberto Zangeronimo Universidade Federal de Lavras (UFLA), Lavras, Minas Gerais, Brasil
Priscila Vieira Rosa Universidade Federal de Lavras (UFLA), Lavras, Minas Gerais, Brasil
José Rafael Miranda Universidade Federal de Lavras (UFLA), Lavras, Minas Gerais, Brasil
Marcos Ferreira Brabo Universidade Federal do Pará (UFPA), Bragança, Pará, Brasil

DOI:

https://doi.org/10.1590/1809-6891v15i22238

Keywords:

Aquaculture

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 °C 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 °C 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.

KEYWORDS: composition, nutrient retention, Oreochromis niloticus.

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Author Biographies

Luis David Solis Murgas, Universidade Federal de Lavras (UFLA), Lavras, Minas Gerais, Brasil

Marcio Gilberto Zangeronimo, Universidade Federal de Lavras (UFLA), Lavras, Minas Gerais, Brasil

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Published

2014-06-29

How to Cite

VERAS, Galileu Crovatto; MURGAS, Luis David Solis; ZANGERONIMO, Marcio Gilberto; ROSA, Priscila Vieira; MIRANDA, José Rafael; BRABO, Marcos Ferreira. EFFECT OF PHOTOPERIOD ON FILET COMPOSITION OF NILE TILAPIA JUVENILES. Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 15, n. 2, p. 168–173, 2014. DOI: 10.1590/1809-6891v15i22238. Disponível em: https://revistas.ufg.br/vet/article/view/22238. Acesso em: 6 dec. 2025.

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Issue

Vol. 15 No. 2 (2014)

Section

Animal Production

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