Eclosión de quistes en dos especies de Dendrocephalus (Anostraca: Thamnocephalidae) de uso potencial como alimento en acuacultura / Eclossion of cysts in two species of Dendrocephalus (Anostraca: Thamnocephalidae) in a potential use as food in aquaculture
Rev. biol. trop
; 48(Supl.1): 145-149, dic. 2000.
Artigo
em Espanhol
| LILACS
| ID: lil-503268
Biblioteca responsável:
BR1.1
ABSTRACT
The use of Artemia salina nauplii as live food has significantly aided culture of commercial fish and shrimps in recent years. However, reported deficiencies in the nutritional value of some strains originated the study of freshwater fairy shrimps as an alternative to Artemia. This study presents cyst biometry for Dendrocephalus geayi and D. spartaenovae (Anostraca Thamnocephalidae), and the effects of some physicochemical variables on cyst hatching. The biometric characteristics of D. geayi and D. spartaenovae are within the size range of commercial Artemia strains. Favorable conditions to hatch D. geayi are 30 degrees C and conductivity near that of distilled water (<5 micromhos). For D. spartaenovae, these conditions are 28 degrees C and 280 micromhos. A very low salinity such as 1 per thousand inhibits hatching in both species.
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Coleções:
Bases de dados internacionais
Base de dados:
LILACS
Assunto principal:
Aquicultura
/
Anostraca
/
Peixes
/
Ração Animal
Limite:
Animais
Idioma:
Espanhol
Revista:
Rev. biol. trop
Assunto da revista:
Biologia
/
Medicina Tropical
Ano de publicação:
2000
Tipo de documento:
Artigo
País de afiliação:
Venezuela
Instituição/País de afiliação:
Universidad Central de Venezuela/VE