In analyzing the plasmid sequence from the whole genome sequences of AHPND V. parahaemolyticus (V.p) isolates, researchers identified a clear geographical variation within the plasmid, and developed PCR methods to characterize AHPND V.p isolates as either Mexico-type or Southeast Asia-type.
An R&D trial was conducted with shrimp biofloc technology at a commercial facility in Saudi Arabia. Results indicated that biofloc technology can be effectively applied, with some protocol adjustments, in the KSA’s extreme desert environmental conditions.
Inbreeding commonly causes a decrease in the mean values of traits of productive interest in aquaculture. Results of a study, however, showed that inbreeding had no effect on grout survival of Pacific white shrimp from 65 to 130 days of
To ensure optimal water quality and clean pond bottoms at shrimp farms, choosing consistently good-quality feed and close monitoring of feed trays supported by a proven feeding guide are recommended practices to control the amount of feed applied to ponds.
To evaluate the value of incorporating tail weight and yield in shrimp-breeding programs, the authors carried out a study to estimate heritabilities and genetic correlations for the traits.
In a 10-week study of nursery-reared Pacific white shrimp performance, the inclusion of Spirulina meal allowed reduction of fishmeal up to 25 percent with no detrimental effect on shrimp growth performance.
A study evaluated Pacific white shrimp given plant protein-based diets with varied lipid content and soybean meal:soy protein concentrate ratios.
A study demonstrated that market-size shrimp can be profitably produced with zero water exchange in intensive raceways. The reuse of water that served for an earlier nursery study allowed the immediate establishment of a healthy microbial community in the grow-out
A recent study in Brazil tested the efficacy of nine commercial feed attractants for Litopenaeus vannamei. Condensed fish-soluble protein, an amino acid complex with digested bivalve mollusk, and whole squid protein hydrolysate stimulated the highest feeding responses.