For production animal veterinarians, autumn is the time to remind farmers about the importance of trace element testing leading up to winter.
Tissue and serum sampling in the autumn or at drying off, provides an opportunity to ensure trace elements and magnesium concentrations are appropriate heading into winter, and to assess any effects of sporidesmin on the liver. Options for sample collection include collecting liver and/or blood samples on-farm, or getting liver samples collected at the slaughter plant (updated works submission forms to be sent with animals, can be found on our website).
We recommend on-farm collection of liver biopsies for trace element testing as it provides guaranteed animal selection and identification, better traceability of samples, is more cost effective for the farmer and provides more accurate results due to the controlled handling and transport of the samples. It also provides an opportunity to discuss the farm’s animal health strategies more generally. For more detailed information on liver biopsy sampling, read our information sheet.
Liver biopsy performed by a veterinarian is Awanui Veterinary’s preferred sample type.
Interpreting trace element results are a whole lot easier with cumulative reporting and regional trends on reports.
> Cumulative reporting can be used to identify seasonal trends within the same year or previous years specific to that farm. This enables veterinarians to quickly track results (without having to find previous trace element reports), and advise on strategic supplementation. It also provides a more user friendly, visual reference for farmers that can be used to track changes over time and align supplementation with management decisions.
> Regional trending enables farmers and veterinarians to at a glance see how their farm compares in relation to other farms within their region. This feature can be used as a tool to highlight the importance of regular testing and the existence of any potential or possible local toxicities or deficiencies.
Note: Regional data is dependent on accurate identification of the species, age and location, so please supply as many details as possible on submissions so you and your farming clients can make the most of this exciting innovation.
The recommended sample size for liver copper is 10+ samples for all species.
Like much diagnostic testing, there is no one size fits all solution. We have some great resources that can help you make testing choices:
> Autumn essentials information
> Seasonal test guides
> Mineral Check booklet
Still stuck? Our expert team of pathologists is always available to help. Call us today on 0800 474 225.