Intensive feeding of post-larvae of Macrobrachium amazonicum Heller E Macrobrachium rosenbergii [De Man] í  Decapoda, Palaemonidae í  until juvenile phase

Authors

  • Edson Angelo ROSERSO Pesquisador Cientí­­fico - Setor Crustáceos - Instituto de Pesca - CPA/SAA
  • Vera Lúcia LOBÃO Pesquisador Cientí­­fico, Bolsista do CNPq- Setor Crustáceos Instituto de Pesca - CPA/SAA
  • Myrian Tereza HORIKAWA Biologista (Estágiária) Bolsista do CNPq- Setor Crustáceos Instituto de Pesca - CPA/SAA

Keywords:

freshwater shrimp, Macrobrachium amazonicum, Macrobrachium rosenbergii, feeding in laboratory

Abstract

This work aims to contribute for the knowledge of the development of M. amazonicum and M. rosenbergii in intensive condition of feeding, with 7 kinds of commercial dry food and bovine liver "in natura". The work was done in a laboratory, in tanks containing freshwater, with biological filtration and maintenance of temperature around 28 ± 0.01oC. The changes in protein and fiber rates of the food were respectively between 16.5% and 48%, and between 0.42 and 12%. For M. amazonicum until the 8th post-larval week, the food Nutripeixe containing 30% of protein and 12% of fiber was that of best results, with 138 mg of gain of weight and 1.98:1 of conversion. Between the 8th and the 15th week, the best animal development was obtained with the food Biopostura containing 16.5% of protein and 6.5% of fiber, with gain of weight of 107 mg and 3.72:1 of conversion. For M. rosenbergii until the 6th post-larval week, the food bovine liver containing 19.9% of protein and 0.42% of fiber provided the best gain of weight (179 mg) and 1.12:1 of conversion. In general, all the foods were practicable in the cultivation of post-Iarvae of M. amazonicum and M. rosenbergii, with election over that of better price and gain of weight.

Published

2018-09-04

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