Use of decapsulated Artemia cysts in ornamental fish culture

Abstract

Two series of feeding experiments were conducted to study the feasibility of using decapsulated Artemia cysts for direct feeding to ornamental fish. The first series evaluated the dietary values of the dried and the brine decapsulated Artemia cysts against two conventional live feeds, Artemia nauplii and Moina for adults and fry of the guppy, Poecilia reticulata Peters. In the second series, brine cysts were used for feeding to fry of four other important ornamental fish species, viz. platy, Xiphophorus maculatus (Günther), swordtail, X. helleri (Heckel), molly, P. sphenops Cuvier & Valenciennes and black neon tetra, Hyphessobrycon herbertaxelrodi Géry, and the results were compared with those fed Moina. Evaluation of the performance of the fish fed the various diets was based on stress resistance, growth and survival of the fish. Our findings indicated that decapsulated cysts could be used as a substitute for Artemia nauplii or Moina in freshwater ornamental fish culture. Apart from being a hygienic off‐the‐shelf feed, the direct use of the cysts also signifies a new area of application for low‐hatch cysts in the ornamental fish industry, with concomitant saving in feed costs.

Optimal first feed organism for South African mud crab Scylla serrata (Forsk�l) larvae

“…Scylla larvae in other countries have been successfully reared on diets of Artemia nauplii alone (Ong Artemia nauplii in ornamental fish culture and are used as a reference diet for the rearing of African catfish (Clarias gariepinus) larvae (Pector et al 1994;Stael et al 1995;Ribeiro and Jones 1998;Lim et al 2002).…”

Nonhatching DecapsulatedArtemiaCysts As a Replacement toArtemiaNauplii in Juvenile and Adult Zebrafish Culture

“…Similar differences in growth have been demonstrated in several other freshwater ornamental fish species that have been fed both nauplii and decaps. 9 While growth studies involving decapsulated Artemia cysts have been performed on several species, reproduction studies involving decaps have not been conducted to date. The nauplii treatment fish were found to have significantly lower embryo production than both the decap fish and standard fish (Fig.…”

Embriões liofilizados e flocos de <em>Artemia</em> no cultivo pós-larval de <em>Litopenaeus vannamei</em> (Boone, 1931)

“…Sci. Maringá, v. 30, n. 1, p. 17-21, 2008 conservação dos embriões (por desidratação em salmoura ou liofilização, por exemplo) para uso em demanda, nas dietas para pós-larvas de peixes (García-Ortega et al, 1998;Lim et al, 2002) e crustáceos (Ribeiro e Jones, 1998;Davis et al, 2005). Embora os náuplios representem a forma mais usual de utilização, a biomassa de metanáuplios e adultos de Artemia tem assumido papel crescente na dieta de camarões cultivados.…”