01973nab a2200217uuc4500 1362311 20240202114151.0 140310e20120105 eng 1362311 comduadb eng Kinach Loureiro, Claudio aut aut 715219 The use of protozoan, rotifers and nematodes as live food for shrimp raised in BFT system The Protozoan and Nematodes Culture Medium - PNCM, enable inexpensively production of microorganism to be used as live food in shrimp culture. It was tested the ciliates produced by PNCM as live food for shrimp larvae in an experiment with four treatments: (BFT) only biofloc medium; (BFT 10) 10 mL of PNCM culture added to biofloc; (BFT 100) 100 mL of PNCM culture added to biofloc; and (BFT 1000) 1000 mL of PNCM culture added to biofloc. The microorganisms were analyzed at the beginning, intermediate and final phases of the experiment which lasted for 30 days. The analysis of shrimp gut contents indicated a predation of shrimps on the ciliates. In most treatments, in the initial period there was significant increase of flagellates, the intermediate phase was marked by the ciliates decrease and the final period was represented by an increase in the abundance of the ciliates and rotifers. Nematodes were absent at the end of the final phase in all treatments, suggesting that these organisms were effectively preyed by shrimps. This study indicate that ciliates, rotifers and nematodes play an important role as live food in hatcheries mainly due to their small size, nutritional value and attractivity exerted on shrimp postlarvae. Larvicultura 177691 Cultivo de camarones 61722 Wasielesky Jr, Wilson aut aut 684654 Abreu, Paulo César aut aut 684655 Atlantica (Brasil) Vol. 34, No. 01, Ene.-Jun. 2012, 5-12 1359310 0102-1656 674900 ARIMP 674782 674782