Consulta: creatorFacets:"Soares,Lourdes Marília Oliveira"
Registros recuperados: 2
Data/hora: 05/06/2024 19:18:52

Optimal feeding frequency for Heros severus (Heckel, 1840), an Amazon ornamental fish
Provedor de dados: 96
Autores: Paixão,Daércio José de Macedo Ribeiro; Brabo,Marcos Ferreira; Soares,Lourdes Marília Oliveira; Campelo,Daniel Abreu Vasconcelos; Veras,Galileu Crovatto.
ABSTRACT The influence of feeding frequency on growth performance, batch uniformity, and survival rate of severum (Heros severus) larvae and juveniles was investigated in two experiments. In the first, 200 five-day-old severum larvae with 3.20±0.31 mg and 6.20±0.39 mm were randomly distributed into 20 aquaria (1 L) and fed 500 Artemia nauplii larvae−1 day−1 for 15 days. In the second, 120 severum juveniles, 178.19±33.59 mg and 1.82±0.09 cm, were randomly distributed into 15 aquaria (300 L) and hand-fed a commercial diet (400.0 g kg−1 crude protein and 21.2 kJ g−1 gross energy) until apparent satiety for 30 days. For both experiments, feeding frequencies of one, two, three, four, and five meals day−1 were evaluated. We used four replicates for the first...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Amazon fish; Food management; Growth performance; Nutrition; Ornamental fish.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100156

Influence of photoperiod on growth, uniformity, and survival of larvae of the Amazonian ornamental  Heros severus (Heckel, 1840)
Provedor de dados: 96
Autores: Veras,Galileu Crovatto; Paixão,Daércio José de Macedo Ribeiro; Brabo,Marcos Ferreira; Soares,Lourdes Marília Oliveira; Sales,Abner Dias.
ABSTRACT The objective of this work was to evaluate the influence of photoperiod on growth, uniformity, and survival of larvae of the Amazonian ornamental fish severum (Heros severus). A completely randomized study was used with five treatments (0L:24D, 6L:18D, 12L:12D, 18L:6D, 24L:0D) and four replicates, with the aquaria as the experimental unit. Two hundred severum larvae (3.20±0.16 mg and 5.60±0.00 mm) were distributed into 20 aquariums of one litre at a density of 10 larvae per litre. For a period of 15 days, feed was supplied four times daily with Artemia nauplii in a proportion of 160 nauplii/larvae/feeding. At the end of the experimental period, growth, uniformity, and survival data were subjected to analyses of variance and significance....
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Circadian rhythm; Hatchery; Live food; Ornamental fish; Severum.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000700422