Organic matter decomposition causes most of the water quality issues in aquaculture ponds. Bacterial populations are the primary organisms of decay in an aquaculture system, including its organic matter.
Shrimp nursery systems offer significant potential for compensatory growth after juveniles are transferred to ponds for final grow-out. Nursery feed selection and their management are critical components of shrimp nursery systems.
Shrimp nursery systems offer the shrimp industry an important opportunity to increase profits, by helping produce strong, healthy and uniform juveniles with significant potential for compensatory growth after their transfer for final pond grow-out. Biofloc technology and water quality are critical components of shrimp nursery systems.
La limpieza es parte de la gestión diaria para asegurar condiciones de cría adecuadas, pero ocasionalmente se requiere tratamiento adicional del agua para mejorar aún más su calidad. Un desinfectante como el percarbonato de sodio puede reducir la carga bacteriana.
Shrimp nursery systems offer an important opportunity to increase profits. Properly designed and operated nurseries are highly biosecure facilities to grow postlarvae at very high densities.
EU legislation requires farmed fish be spared unnecessary pain, distress or suffering at slaughter, and efficient manual and automated systems have been developed to help achieve this goal. What’s more, longer shelf life and improved flesh quality have been reported.
Cleaning is part of the daily management to ensure adequate rearing conditions, but additional water treatment is occasionally required to further improve the water quality. A disinfectant like sodium percarbonate can reduce the bacterial load.
An over-reliance on medical and chemical controls, along with warming waters, led to a surge in sea lice. With such treatments waning in effectiveness, operators turn to other, safer measures.
The presence of AHPND-Vibrio parahaemolyticus can be detected both in fecal DNA samples and in the enriched bacterial broth with samples of enrichment broth showing increased sensitivity.
This study tested five diets formulated with increasing levels of methionine (Met) and Met + cysteine (Cys) and their effect on growth performance of juvenile Pacific white shrimp stocked at 50, 75 or 100 animals/m2 in a green water system.
Arun Dhar, Ph.D. will attempt to fill the “big shoes” of Dr. Donald Lightner at the University of Arizona’s Aquaculture Pathology Laboratory, where the shrimp disease EMS was diagnosed.
Aquamimicry simulates natural, estuarine production conditions by creating zooplankton blooms as supplemental nutrition to the cultured shrimp, and beneficial bacteria to maintain water quality. Better-quality shrimp can be produced at lower cost and in a more sustainable manner.
Two virulence genes are known to encode a binary photorhabdus insect-related toxin that causes acute hepatopancreatic necrosis disease in shrimp. The pathogenicities of these V. campbellii strains were evaluated through laboratory infection and subsequent histological examination in P. vannamei shrimp.
A study tested the use of biofloc technology to improve the productivity of the fathead minnow (Pimephales promelas) a commercially important baitfish in North America.
A study conducted in Huila, Colombia, tested the effects of the feed additive potassium diformate on the performance of juvenile tilapia. Results showed an enhanced fish productivity index, lower mortality and improvements in weight gain.
Realizing higher growth rates in commercially cultured shrimp has many important benefits, including reducing various risks, cutting costs and increasing economic opportunities. Shrimp genetics primarily determines the amount of additional growth that can be achieved, as shrimp typically reflect their parents’ growth rates.