Salmonellosis

Question 1

What are some ‘critical control points’ on a dairy for controlling Salmonella?

Answer 1

• Close up pen - when cows freshen and enter the milking string they are much cleaner, also less risk of transmitting fecal contaminants to calves.
• commodity & feed storage - bird feces, other fecal contamination
• water tanks - keep cows from defecating in
• rodent/pest control
• fomites!! biosecurity
• separate sick animals
• have separate feeding and manure management equipment (loaders, etc) if not possible, wash in between
• pasteurization of hospital milk, colostrum (need quality control on this step!)

Question 2

T/F

Salmonella can survive in the environment for a long time

Answer 2

TRUE

Question 3

Vaccine types for help controlling

Answer 3

SRP
J5 (E coli vax) - helps boost non-specific immunity
vaccinate dams-> passive transfer for calves!

Question 4

what are some GI lesions you will see on PM?

Answer 4

fibrin casts
intestinal hemorrhages, petechiae
pale spleen(?)