Data/hora: 07/06/2024 05:46:37

Provedor de dados: | 65
País: | Brazil
Título: | The influence of the photoperiod on productive performance and survival of piabanha-of-Pardo (Brycon vonoi ), hatchery
Autores: | Pedreira,Marcelo Mattos; Costa,Deliane Cristina; Schorer,Marianne.
Data: | 2018-01-01
Ano: | 2018
Palavras-chave: | Brycon vonoi; Growth; Larviculture; Luminosity; Survival.
Resumo: | ABSTRACT: This research aimed to verify the influence of the photoperiod on the performance and survival piabanha-of-Pardo (Brycon vonoi) larvae. Piabanha-of-Pardo larvae 24 hours post-hatch, with body weight of 2.44 ± 0.02mg, and total length of 7.82 ± 0.46mm, were subjected to five different photoperiods: 0L:24D, 6L:18D, 12L:12D, 18L:6D and 24L:0D (871.12 ± 92.65 lux). Daily, the water temperature, dissolved oxygen (DO), percentage of oxygen saturation, pH, and water conductivity were monitored, and presented similar water quality values among tanks with distinct photoperiods, and within the range considered appropriate for the genus Brycon larvae. Piabanha-of-Pardo larvae have better productive performance and survival rate at longer photoperiods, over 6 hours of light and below 12 hours of light per day. The 9L:15D photoperiod, specified by the derived equation, is indicated for the piabanha larviculture, but researches with the species and the photoperiod need to be better studied.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000100402
Editor: | Universidade Federal de Santa Maria
Relação: | 10.1590/0103-8478cr20160296
Formato: | text/html
Fonte: | Ciência Rural  v.48 n.1 2018
Fonte: | info:eu-repo/semantics/openAccess