A RETEST of the herd should be made before returning them to the permanent quarters and the reactors slaughtered.
"Common Diseases of Farm Animals"
R. A. Craig, D. V. M.
The infertile eggs after a careful RETEST are then packed in cases and sent to market where they are usually sold to bakers as tested eggs.
"Ducks and Geese"
Harry M. Lamon Rob R. Slocum
After you have worked through all the items in your normal dietary, it would be wise to RETEST the foods a second time, breaking your fast with one different test item each morning.
"How and When to Be Your Own Doctor"
Dr. Isabelle A. Moser with Steve Solomon