For the purpose of detecting the presence of listed diseases and emerging diseases, operators shall:
(a)
observe the health and behaviour of animals under their responsibility;
(b)
observe any changes in the normal production parameters in the establishments, animals or germinal products under their responsibility that may give rise to a suspicion of being caused by a listed disease or emerging disease;
(c)
look for abnormal mortalities and other signs of serious disease in animals under their responsibility.