Disease outbreaks in shrimp occur not only due to the presence of pathogens, but also to suboptimal culture conditions and system management.
Assessing disease risk at an aquaculture facility allows the anticipation of possible outbreaks and subsequent production losses. It can also help to identify weaknesses of the production system.
The objective of a contingency plan is to quickly recover production through rapid initial response and effective implementation of biosecurity measures. Such plans depend on whether the detected pathogen or disease is exotic or endemic, its potential economic impacts and
The development of an effective biosecurity plan requires full understanding of facility design and operations, and knowledge of the animals’ health status and the transmission modes of pathogens in order to identify the risks and define meaningful measures.
For two years of data, the effects of management, season, stocking density and salinity on the incidence of disease in northeastern Brazil’s shrimp farms were found to be highly significant.
The transfer of resistance from an aquaculture pathogen into a human enteric bacterium has been demonstrated in research and may be happening in the real-world environment.
Improving the methodology of antimicrobial resistance testing and related controls, and the implementation of laboratory ring tests could lead to more reliable information.
Regular surveillance of culture stocks can both evaluate current animal health and limit future disease problems by detecting pathogens and allowing intervention before disease outbreaks occur.
In studies, the authors found no significant difference in internal susceptibility to WSSV infection between shrimp in different molt stages.