Cupric-oxide needles effective as oral copper supplement in cattle

Increasing copper levels in 120 growing beef heifers, ages 6 to 9 months, was attempted with copper injections and with oral administration of cupric-oxide needles. The weaned Hereford heifers were randomly allocated to three groups, including one with no supplementation. Study results indicate that oral administration of copper-wire particles was effective, cheap, safe and convenient in preventing or treating copper deficiency. Such a deficiency can retard growth in cattle.