Trace element testing
The best time is fast approaching for annual trace element testing. Autumn is a good time to test as levels drop to their lowest point in the late winter/early spring.
By testing in the autumn we are able to:
- Determine if there is a current deficit that could be affecting health and production. If cattle have been receiving zinc for facial eczema prevention, copper depletion may have occurred.
- Check that there are enough reserves to buffer the depletion that will occur heading towards spring.
- Assess whether the farm's supplementation policy is adequate. Cattle can be receiving too little or too much of a particular trace element. There are numerous trace element products on the market with a very wide range of prices. The most expensive product is not necessarily the best for your farm. Testing can help save your money in the long run.
Liver sampling is the preferred method for testing trace element levels. For a routine check, they give us much more accurate information about trace element reserves and current levels than blood tests do. There are two ways cattle livers can be tested: liver biopsies done by Totally Vets or livers from cull cows tested at the works. Biopsies are generally preferred as we can be more certain that the animals tested represent the herd and repeat-samples can be taken to monitor trends over time. Works-testing forms are available from Totally Vets if you prefer to use this method.
Pasture-testing can also be valuable in assessing trace element status alongside animal tests. High levels of antagonists in the pasture can reduce absorption of certain trace elements. Knowing the pasture analysis from your property can assist in deciding the best approach to supplementation.
Call Totally Vets to book in your liver biopsies or to obtain a works-testing form.
