Ongoing production issues in shrimp farming, part 2
Effective implementation of biosecurity protocols in shrimp farming requires awareness, discipline and a commitment by farm owners to implement them. The authors take a close look at intensive nurseries and how to exclude pathogens, predators and competitors.
Temas de producción actuales en la cría de camarones, parte 2
La implementación efectiva de los protocolos de bioseguridad en el cultivo de camarón requiere conocimiento, disciplina y el compromiso de los propietarios y gerentes de granjas para implementarlos. Los autores consideran los viveros y precrías intensivas y cómo excluir a los patógenos, depredadores y competidores.
Updates on shrimp diseases AHPND, NHP at Aquaculture America 2018
Several shrimp-disease papers were presented at Aquaculture America 2018, including one on the detection of AHPND at a site in the United States.
Study: TSV exposure may lessen YHV effects in white shrimp
Since Taura syndrome virus was in the Americas when yellow head virus become pandemic in Asia, it is possible TSV prevented shrimp in the Western Hemisphere from infection by materials from Asia containing YHV. To test this idea, the authors evaluated the viral interactions in shrimp preinfected with TSV and then challenged with YHV.
Colombian shrimp research associates TSV, NHP selection, resistance
In an NHP (necrotizing hepatopancreatitis) challenge test, shrimp from a Colombian breeding program had higher resistance and 30 percent greater survival than a control line of Taura syndrome virus-free shrimp.
Development of new and real-time PCR for detection and quantification of NHPB
Authors describe conventional PCR and real-time PCR assays based on the NHPB flgE gene as alternative methods for the detection and quantification of NHPB in shrimp and shrimp-associated samples, including artemia. This newly described method will be an additional diagnostic tool for confirmation of this pathogen.
Desarrollo de un nuevo PCR en tiempo real para la detección y cuantificación de NHPB
Los autores describen los ensayos de PCR convencional y de PCR en tiempo real basados en el gen flgE de NHPB como métodos alternativos para la detección y cuantificación de NHPB en muestras de camarones y asociadas con camarones, incluyendo artemia.
White Feces Syndrome in shrimp: Predictor of EHP?
Study demonstrates strong association between White Feces Syndrome and Enterocytozoon hepatopenaei in EHP-endemic regions. Biosecurity strategies can minimize the risk of pathogen’s spread in the Americas.
Síndrome de Heces Blancas en Camarones: ¿Predictor de EHP?
Un estudio demuestra una fuerte asociación entre el Síndrome de las Heces Blancas y Enterocytozoon hepatopenaei en regiones endémicas de EHP. Las estrategias de bioseguridad pueden minimizar el riesgo de propagación de patógenos en las Américas.
University of Arizona shrimp pathology short course begins in June
The University of Arizona's renowned Aquaculture Pathology Lab will host a six-day course next month featuring expert lecturers and hands-on exercises.
La sal común es una herramienta útil en la acuacultura, parte 2
El uso preventivo de sal común (cloruro de sodio) por los productores comerciales de peces de agua dulce tiene muchos beneficios, incluyendo ayudar a la prevención de rutina de pérdidas debidas a las enfermedades, el estrés y el mal manejo durante el transporte, recolección, clasificación, conteo, pesaje y desove inducido.
The promise of In-Pond Raceway Systems, part 2
In-Pond Raceway System technology, developed at Auburn University, continues to evolve with improvements in design, construction and more efficient operation.
La promesa de Sistemas de Raceways en Estanques, parte 2
La tecnología de Sistemas de Raceways en Estanques, desarrollada en la Universidad de Auburn, continúa evolucionando con mejoras en el diseño, construcción y operación más eficiente.
Four AHPND strains identified on Latin American shrimp farms
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.
Cuatro cepas de AHPND identificadas en granjas de camarón de América Latina
Se conocen dos genes de virulencia que codifican una toxina binaria de Photorhabdus relacionada con insectos que causa la enfermedad de necrosis hepatopancreática aguda en camarones. Las patogenicidades de estas cepas de V. campbellii fueron evaluadas mediante infección de laboratorio y posterior examen histológico en camarones P. vannamei.
Aquaculture America 2017: Communication key to the future
This year’s Aquaculture America in San Antonio, Texas, provided significant learning and networking opportunities. It successfully brought together 14 U.S. aquaculture organizations and more than 1,600 participants from Europe, Asia, Africa and Australia.
CENIACUA develops WSSV-resistant shrimp in Colombia
To combat white spot syndrome virus (WSSV) in white shrimp, Corporación Centro de Investigación de la Acuacultura de Colombia (CENIACUA) initiated a selective-breeding program to develop resistance in shrimp.
We can grow better shrimp, and in better ways
The recent Central American Aquaculture Symposium in Choluteca, Honduras, brought together more than 600 participants to discuss industry issues and perspectives. The focus was shrimp diseases and their impacts on production, as well as practical alternatives to face these issues and move forward.