The lsraeli Joumal of Aquaculture - Bamidgeh 51(4), 1999, 157-168

USE OF ARTIFICIAL DIETS TO REDUCE ARTEMIA NAUPLII
REQUIREMENTS FOR PRODUCTION OF LITOPENAEUS
VANNAMEI POSTLARVAE


Tzachi M. Samocha

Texas Agricultural Experiment Station, Shrimp Mariculture Research Facility, 4301 Waldron Road, Corpus Christi, TX, 78418 USA

Takeo Matsumoto, Edward R.Jones, Mark Torano

Texas A&M University, Corpus Christi, 6300 Ocean Drive, Corpus Christi, TX 78412 USA


(Received 19.9.98, Accepted 13.1.00)

Abstract

Complete replacement of live food by artificial diets is a major goal of any commercial larvae culture hatchery. The recent worldwide shortage and consequent increase in price of Artemia cysts demonstrate the need to reduce the dependency of commercial hatcheries on this live food source. A study was conducted in Imhoff cones to evaluate whether feeding larvae of the Pacific white shrimp Litopenaeus vannamei with artificial diets can reduce the need for Artemia nauplii in postlarvae production. Larvae (mysis 1 through mysis 3 substages) and postlarvae (one to eight-day-old) were fed Artemia nauplii at different concentrations together with an artificial diet and the effects on growth and survival were determined. Results show that similar survival but lower growth rates were obtained with the decrease in Artemia nauplii concentration compared to the control (no reduction in Artemia concentration). The 25% decrease in Artemia concentration was the only treatment with no statistically significant effect on growth compared to the control. The data suggest that the experimental diets fed in this study can be used to partially replace Artemia nauplii in the production of larvae of the Pacific white shrimp.



home