Positive and significant correlations were found among PCV2 viral loads present in sera, nasal swabs, rectal swabs and lymphoid tissues (R = 0.289 0.827, p < 0.0001 0.01), which indicates that nasal and rectal swabs were suitable indicators of PCV2 excretion.
For each type of monitoring, suitable indicators are outlined.
These properties have been frequently referred as suitable indicators of soil health [25 28].
Here, methodological and analytical steps are required, besides the definition and selection of suitable indicators.
A clear definition of monitoring goals is essential, as is the selection of suitable indicators.
The adoption of suitable indicators is fundamental to implement sustainable development at the local level.
Suitable indicators need to have bacterial tests and we do not have access to such a data.
The selection of suitable indicators is based on the following criteria: relevance, directional safety, availability of data, comprehensibility, and practicability.
Thus, suitable indicators have to be measured, which can be done by onboard or wayside monitoring systems [3].
As explained in the previous paragraph, another issue lies with the selection of the suitable indicators and the time period.
(3) The principles of division (rules) governing assignment into the classes must be based on suitable indicators (ground parameters, etc).
