Just like human babies, calves thrive better when their moms are in a positive nutritional state during pregnancy. Pregnant cows and heifers also need prenatal supplements such as trace minerals:
By injecting MULTIMIN® 90 any time from preg-check to 30 days before calving, you ensure that every pregnant dam is properly supplemented with copper, selenium, zinc and manganese.
At the label dose of 1ml/200lbs body weight for a 1,200lb cow over 2 years of age, the dose for MULTIMIN® 90 is 6ml. This 2-in-1 treatment for the cow and her fetus is less than $3
At weaning, calves need more trace minerals. They are stressed, often not eating enough, and they need to respond properly to vaccines, which also drain trace minerals. However, the calves are growing rapidly, and they may already be trace mineral deficient.
Branum, Jay Christopher. “Impact of Prenatal Dietary Copper Level on Copper Status and Immunity of Newborn and Growing Calves.” Texas A & M University, 1999.
Arthington, J. D., et al. “Effects of Trace Mineral Injections on Measures of Performance and Trace Mineral Status of Pre- and Postweaned Beef Calves.” Journal of Animal Science, vol. 92, no. 6, 2014, pp. 2630–2640., doi:10.2527/jas.2013-7164.