Voltar
Artigo Acesso aberto Produção Nacional Revisado por pares
BIBTEX RIS

Red Light Stimulates Feeding Motivation in Fish but Does Not Improve Growth

2013; Public Library of Science; Volume: 8; Issue: 3 Linguagem: Inglês

10.1371/journal.pone.0059134

ISSN

1932-6203

Autores

Gilson Luiz Volpato, Thaís S. Bovi, Renato Hajenius Aché de Freitas, Danielle F. da Silva, Helton Carlos Delício, Percília Cardoso Giaquinto, Rodrigo Egydio Barreto,

Tópico(s)

Fish Ecology and Management Studies

Resumo

Nile tilapia fish were individually reared under similar light levels for 8 weeks under five colored light spectra (maximum wavelength absorbance): white (full light spectrum), blue (∼452 nm), green (∼516 nm), yellow (∼520 nm) or red (∼628 nm). The effects of light on feeding, latency to begin feeding, growth and feed conversion were measured during the last 4 weeks of the study (i.e., after acclimation). We found that red light stimulates feeding, as in humans, most likely by affecting central control centers, but the extra feeding is not converted into growth.

Referência(s)