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Aim oft the present study is to implement a method of ventilation control to be applied to two Molise-based beef cattle breeding farms. The study focuses on the detection of those parameters (temperature, relative humidity and light) deemed to be crucial for the animals' life conditions in terms of both microenvironment(s) and "animal well being". Two abacuses have been worked out to calculate the minimum ventilation rate required as well as the number of total air changes needed at one hour intervals as a function of the CO2 levels to be maintained in the cowsheds. Such a system, in a point of view of beef traceability, also demonstrated to be useful for a very first assessment of the meat obtained. The authors have contributed to the same extent to the present study conditions to livestock physiological conditions (5). Based on carbon dioxide monitoring, a calculation abacus of the ventilation rate related to the size of the animal's house as well as to both species and size of the animals breed has to be devised. The value assessed in this manner can be imme- diately correlated to the rate of ventilation present in the animal house thus allowing for the assessment of the quality of the breeding conditions under study. The determination of the light conditions in the cowsheds permits a good evalua- tion of the work environment and may allow these data to improve breeding techniques (6). These data may be useful for future consumers in terms of beef traceability (7, 8).

A Method of Control for the Ventilation and Recording of: Temperature, Relative Humidity and Light in Beef Traceability