Follow @thepigsite. (511) This single cell protozoan organism is found in the caecum and large colon as a normal inhabitant. It is debatable whether it is a primary pathogen in pigs and is more likely to be a secondary invader after bacterial or viral infections e.g. salmonella.
Central Authentication Service. The Central Authentication Service (CAS) is a single sign-on protocol for the web.[1] Its purpose is to permit a user to access multiple applications while providing their credentials (such as userid and password) only once.
A CAS Registry Number is a numeric identifier that can contain up to 10 digits, divided by hyphens into three parts. The right-most digit is a check digit used to verify the validity and uniqueness of the entire number.For example, 58-08-2 is the CAS Registry Number for caffeine.ach CAS Registry Number (often referred to as a CAS Number): 1  Is a unique numeric identifier. 2  Designates only one substance. 3  Has no chemical significance. 4  Is a link to a wealth of information about a specific chemical substance.