Utilização da artêmia nacional como dieta para pós-larvas do Litopenaeus vannamei (Boone, 1931) na fase berçário = Brazilian artemia as feed for Litopenaeus vannamei post-larvae through the nursery phase

Abstract

Experimentos foram realizados em uma fazenda comercial de criação decamarões marinhos, objetivando avaliar a taxa de crescimento e sobrevivência das pós-larvas do Litopenaeus vannamei, quando cultivadas em tanques-berçário e submetidas a diferentes dietas. As pós-larvas utilizadas encontravam-se com 19 dias (PL19) e foram estocadas a 16 PL/L, em tanques-berçário de 60 m3. As pós-larvas foram submetidas ao Método de Alimentação Convencional (MAC) e o Método de Alimentação com Artêmia (MAA). Verificou-se que ao se correlacionar o peso em função do comprimento e do tempo de cultivo,o MAA apresentou uma relação estatisticamente superior (pExperiments were carried out in a commercial marine shrimp farm toevaluate growth and survival rate of the Litopenaeus vannamei post-larvae during nursery phase using different diets. The nursery tanks (60 m3) will be provided with post-larvae of 19 days (PL19) with a density of 16 PL/liter. The post-larvae were submitted to a Commercial Feeding Method (MAC) and an Artemia Feeding Method (MAA). Considering the correlations between weight and length, and between weight and culture duration, a better efficiency (p<0.05) of the MAA was verified. The survival rate of the post-larvae fed with MAA was 86.25%, while MAC yielded survivorship of 62.12%. Thus, artemia nauplii were proved to be more efficient, providing higher growth and survival rates of Litopenaeus vannamei post-larvae.

Keywords

• artemia
• berçário
• Litopenaeus vannamei
• pós-larvas
• artemia
• nursery tank
• post-larvae