It is well-known trace elements are important for normal animal function. And during April and May is an ideal time to assess the mineral status of dairy and beef cattle because they transition out of the autumn and head into winter.

Mineral deficiencies can result in subclinical and clinical ill thrift affecting production, growth and reproduction. Becoming complacent about mineral status is all too common – and, because disease may not always be obvious, testing and essential treatment is not done.

For instance, recently we organised a mob of beef animals to be liver biopsied at the freezing works for copper status. On the surface they appeared to be healthy but tests showed the livers to be significantly copper-deficient.

This valuable information allowed the farmer to take appropriate action to ensure on-farm animal production and reproduction is not limited by copper, particularly during winter when copper is least available to animals.

Another important point to note is there is a wide range of mineral supplement formulations currently available on the market and some may not be meeting animal requirements. It is important to use a scientifically-based product with good merit and research behind it.

To discuss an ideal mineral supplement or to mineral testing, phone your local vet clinic to talk to a large animal vet.