Influência do fotoperíodo no crescimento e sobrevivência de póslarvas de piracanjuba Brycon orbignyanus (Valenciennes, 1849) (Osteichthyes, Characidae)

This paper aims at studying the influence of photoperiod on the cultivation of Brycon orbignyanus (Valenciennes, 1849) (Osteichthyes, Characidae) post-larvae submitted to four treatments: 0L-24D (L=Light; D=Dark), 10 - L14D, 14L - 10D and 24L-0D, with 3 repetitions. Post-larvae measuring 7.8±0.7mm and weighting 3.5±0.8mg were distributed in 12 aquariums (10L), stocked with 12 post-larvae per aquarium. Fishes were fed daily with Artemia sp. nanplii, in 10 days experiment. A positive relationship between the survival rate (88.9±9.7%) observed in the treatment with 24 hours of luminosity, and the lowest (58.3±8.3%), in the treatment with 24 hours of darkness. No difference was showed (P>0.05) in the mean length and weight of the post-larvae, although there was greater heterogeneity among the post-larvae cultivated at the longer darkness period.

Salmonella enteritidis in the eggs of Japanese quails (coturnix coturnix Japonica - Temminck & Schlegel, 1849) fed diets with different calcium and phosphorus levels

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Ciclo reprodutivo da tabarana, Salminus hilarii (Valenciennes, 1849) (Characidae, Salmininae) na região do baixo rio Sorocaba, SP

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

A Marmota na Corte: recreação e vereda literária no cenário cultural do século XIX (1849-1852)

Pós-graduação em Letras - FCLAS

A poesia lírica na revista Guanabara (1849-1856)

Pós-graduação em Letras - FCLAS