Salt and Trace Minerals for Livestock, Poultry and Other Animals: Molybdenum
Excess molybdenum causes a copper deficiency and results in extreme diarrhea, weight loss, decreased productivity, graying of hair in cattle, pigment formation, bone and joint disorders, problems with reproduction and heart function, loss of crimp in the wool, anemia, and many other problems with ruminants. Molybdenum is an essential nutrient because it is a constituent of the enzyme xanthine oxidase and other enzymes.