ISSN:
1365-2095
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
The effects of the density and type of food on oxygen consumption and ingestion rate of larvae of the white shrimp Penaeus setiferus fed diatoms Chaetoceros ceratosporum, flagellates Tetraselmis chuii and Artemia franciscana nauplii were analysed. Diatoms, flagellates and Artemia nauplii were fed at five densities from 10 to 5 × 103 cells mL−1, 0 to 4 × 103 cells mL−1, and 0.1, 0.5, 1.0, 1.5 and 2 nauplii mL−1, respectively. In three experiments, two of three types of food were maintained constant at concentrations of 30-40 × 103 cells mL−1 (diatoms), 2 × 103 cells mL−1 (flagellates) and 1 Artemia nauplii mL−1. The oxygen consumption in three experiments increased with larval stage, reaching maximum values in Mill except at lower feed concentrations. A maximum ingestion peak in MI was recorded in larvae fed diatoms, whereas that peak was observed in Mil in larvae fed flagellates. The maximum ingestion rate of Artemia nauplii was observed in Mill. Feed concentrations that produced an optimum metabolic rate as a consequence of equilibrium between ingested food and larval stages were obtained with 20 and 30 × 103 cells mL−1 of C. ceratosporum, 2 and 3 × 103 cells mL−1 of T. chuii, and 1.0 Artemia nauplii mL−1. These concentrations would be the most suitable for producing P. setiferus postlarvae.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1365-2095.1995.tb00030.x
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