CEM screening targets which animals?

CEM screening targets which animals?

• A. Stallions and mares over 2 years
• B. Colts and fillies under 2 years
• C. Geldings only
• D. Foals of either sex

Answer: (A)

CEM screening targets horses that are actually used for breeding, since transmission happens primarily through breeding activities. Once horses reach sexual maturity, they become potential carriers that can spread the infection to the other sex during mating and through breeding equipment. Thus, screening focuses on stallions and mares over about two years old who are active in reproduction. Young stock like colts and fillies under two aren’t typically bred yet, and geldings can’t sire offspring, so they aren’t the primary targets for routine CEM screening. Foals of either sex aren’t breeding stock, so they aren’t the focus either.

CEM screening targets horses that are actually used for breeding, since transmission happens primarily through breeding activities. Once horses reach sexual maturity, they become potential carriers that can spread the infection to the other sex during mating and through breeding equipment. Thus, screening focuses on stallions and mares over about two years old who are active in reproduction. Young stock like colts and fillies under two aren’t typically bred yet, and geldings can’t sire offspring, so they aren’t the primary targets for routine CEM screening. Foals of either sex aren’t breeding stock, so they aren’t the focus either.