Abstract
The objective of the study was to evaluate the growth and survival of Litopenaeus vannamei post-larvae fed with freeze-dried embryos and Artemia flakes as feeding supplements to a microparticulate diet (DMP). In treatments T1, T2 and T3, the shrimp were fed with DMP and after 2 hours, received supplements of FLO (T1); EMB (T2); and the same DMP previously offered (T3). In T4, post-larvae were fed with DMP but without additional supplementation. There was no significant difference (p > 0.05) in shrimp survival after the experimental period of 21 days. On the other hand, the absolute weight gain (mg of dry weight) of post-larvae whose diet was supplemented with EMB (T2) was significantly higher (p Artemia embryos and recommend their inclusion in the post-larval diet of Litopenaeus vannamei
Highlights
O gênero Artemia (Crustacea, Anostraca), um complexo de espécies bissexuais e partenogenéticas definidas pelo critério de isolamento reprodutivo, ocorre em ambientes hipersalinos, especialmente em lagos salgados interiores e salinas costeiras (Lenz e Browne, 1991)
The objective of the study was to evaluate the growth and survival of Litopenaeus vannamei post-larvae fed with freeze-dried embryos and Artemia flakes as feeding supplements to a microparticulate diet (DMP)
The absolute weight gain of post-larvae whose diet was supplemented with embriões liofilizados (EMB) (T2) was significantly higher (p < 0.05) than growth found in the other experimental groups (T1, T3 and T4)
Summary
O objetivo do estudo foi avaliar o crescimento e sobrevivência de pós-larvas de Litopenaeus vannamei que receberam embriões liofilizados (EMB) e flocos (FLO) de Artemia como suplementos alimentares a uma dieta microparticulada (DMP). Nos tratamentos T1, T2 e T3, os camarões receberam DMP e após 2h, acréscimos de FLO (T1); de EMB (T2); e da mesma DMP, anteriormente, ofertada (T3). O ganho de peso absoluto (mg peso seco) das pós-larvas, cuja dieta foi suplementada com BEM, foi significativamente superior (p < 0,05) ao obtido nos demais grupos experimentais. Camarões alimentados com DMP e EMB obtiveram ganho de peso absoluto (6,7 mg), significativamente superior aos valores encontrados nos tratamentos que utilizaram DMP e FLO (5,4 mg) ou apenas DMP (5,8 mg em T3 e 5,7 mg em T4).
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