OBJECTIVE
To determine optimal zinc sulfate test solution concentration for detecting failure of passive transfer in calves.
ANIMALS
235 calves (1 to 8 days old) from a calf-rearing operation in central Washington state.
PROCEDURE
Zinc sulfate turbidity tests, using 200-, 250-, 300-, 350-, and 400-mg/L test solutions, were performed on calf serum. These… (More)