The prevalence of Perkinsus sp. in cultured Pacific oysters and the infection intensity during an annual culture cycle using two detection methods were studied in Sinaloa, Mexico. Pathogen prevalence varied depending on the temperature and the age of the culture.
Polymerase chain reaction testing is a powerful tool that can detect very low levels of pathogens, but its ability to screen and produce results that represent the population is often oversimplified. Screening of the wrong tissues or too few animals
A range of alternative products is available to improve animal health and water quality, and control pathogen loads. Beneficial microbes produce antimicrobial compounds and suppress pathogen proliferation.
Streptococcus species account for over half of all bacterial diseases in tilapia. The authors studied the ability of biotype-specific vaccines.
Microbial surveys of hatchery operations at Oceanic Institute found a strong correlation between hatchery success and cultivable bacteria levels in the water supplied to the larval-rearing systems.
The advent of specific pathogen free Pacific white shrimp became a powerful tool for lessening the impacts of diseases in aquaculture.