If animals could talk they'd say Jeffers.
Ketocheck or Plasma Ketone Test
A test material to detect the presence of ketone bodies in milk, urine or plasma of cattle or sheep.
Directions: Place a small quantity (1-2 g) of powder on plain white surface. Deposit 1-2 drops of milk, urine or plasma onto powder. Read results in 2 minutes, (purple indicates positive reading).
California Prop 65 WARNING
Cancer and Reproductive Harm - www.p65warnings.ca.gov