For the lessons will be used the common tools for the use of power point program. Saran no in propitiate positive e/o video relative a argument specific ogni lesions. Will also be projected slides and / or videos on specific topics of each lesson. In the context of the wider project on "Assessment of the health and preservation of marine products  in relation to the characteristics of the supply chain", the task of this research unit is to operate as a "base unit" in order to collect samples at the farm, on the basis of the variables of the supply chain, and then proceed to their preventive health evaluation and shelf life