Disease control on a dairy farm is only as strong as the weakest route by which infection can enter or spread. This week, review who and what crosses your farm boundary, how incoming livestock are assessed, and whether staff can act quickly if disease is suspected. South Africa’s current foot-and-mouth disease (FMD) developments make that practical work urgent, but the same systems also support calf health and control of tick-borne disease.
Build three barriers, not one
MaxMedia’s herd-health guidance frames disease prevention as three jobs carried out together: raise the herd’s resistance, reduce exposure to pathogens on the farm, and control and monitor cattle, livestock, equipment and people entering the dairy. Neglecting any one of these can let disease gain ground. Turn that model into a written farm plan: name who checks arrivals, where new or returning animals are held, how visitors and contractors are managed, and who contacts the veterinarian if an animal is unwell. The specific steps and restrictions should be agreed with your veterinarian and state veterinary services, not improvised during an outbreak.
Treat Addo as a signal to check the boundary
Farmer’s Weekly reported on 22 October that FMD was confirmed in two kudu in Addo Elephant National Park, with an estimated 5% to 10% of the kudu population showing lameness. Red hartebeest and eland were also showing clinical signs, though infection in those species had not been confirmed. The park, about 180,000ha near Gqeberha, is under quarantine while veterinary authorities assess transmission. For neighbouring dairy farms, the instruction is to coordinate with state veterinary services and follow movement restrictions and risk assessments—not to assume wildlife signs establish infection in farm stock.
Movement rules need veterinary authorisation
SANParks said susceptible cloven-hoofed animals may not enter or leave Addo without veterinary authorisation following a risk assessment. Its response is being coordinated with veterinary authorities, and it has urged bordering farmers to maintain strict biosecurity and ensure livestock are vaccinated in collaboration with state veterinary services. A previous report of 418,176 farm animals vaccinated across Sarah Baartman District and Nelson Mandela Bay does not confirm coverage immediately around Addo or whether required follow-up doses are complete. Ask the state veterinarian what applies to your farm and verify each animal’s vaccination status and next dose; do not treat a regional total as proof of protection on your property.
Make everyday hygiene part of the barrier
Biosecurity is not just a gate sign. Keep younger calves first in the work sequence, then move to older animals, so the most vulnerable group is not exposed to pathogens carried from older stock. Use clean feeding equipment, and keep calf bedding dry and warm; good feeding, hygiene and comfort all help support health. In the wider herd, record animal movements and visitor or equipment access according to the farm’s plan, and have a clear route for reporting suspicious illness. A veterinarian can help adapt the plan to a pasture-based or housed system and to local disease risks.
Tick control: check the service and the label
A separate, practical reminder comes from KwaZulu-Natal. The provincial Veterinary Services distributed dipping chemicals to 126 diptanks in AbaQulusi outside Vryheid as part of routine tick control. The report links dipping to control of ticks that transmit redwater, gallsickness and heartwater. It gives advised summer intervals of every 14 days inland and every seven days in coastal districts, but farmers should confirm the applicable local schedule and product instructions with veterinary staff. The handover forms part of routine chemical distribution to 2,238 diptank facilities across KZN. If your dairy relies on communal or local dipping infrastructure, check whether supplies are available and confirm timing, dilution and safe animal handling with the responsible service.
Vaccinate for your risks, not someone else’s calendar
Vaccination works best as part of a veterinarian-led disease-control plan, with records of products, dates and follow-up doses. The Irish Creamery Milk Suppliers Association recently reported 48 confirmed cases of bluetongue virus serotype 3 in Ireland and estimated vaccination covered about half of mature breeding stock. That is not evidence of BTV-3 in South Africa, nor a local vaccination schedule. The useful lesson is to plan with a South African veterinarian around your herd’s risks, breeding calendar and vaccine logistics, rather than copying an overseas programme. For calves, the farm’s biosecurity foundation also includes colostrum management, dam vaccination where appropriate, nutrition and reducing environmental stressors.
Keep the response route clear
Write down the phone number for your private veterinarian and state veterinary office, the person responsible for notifying them, and the movement records they may need. If FMD is suspected, seek veterinary direction promptly and comply with official restrictions; do not move susceptible animals without authorisation. At the same time, keep routine prevention dependable: control entry and contact, protect calf hygiene, review vaccination records, and maintain locally appropriate tick control. Those systems matter whether the immediate concern is a wildlife-linked FMD risk or a familiar seasonal parasite challenge.
Key points
- Use the three-part framework together: strengthen resistance, reduce exposure, and control and monitor movement of animals, people and equipment.
- For farms near Addo, coordinate with state veterinary services; comply with movement restrictions and obtain veterinary authorisation where required.
- Do not assume regional vaccination totals confirm coverage or follow-up doses on your farm; verify status with veterinary staff.
- Confirm local tick-dipping intervals, chemical instructions and supply with the responsible service.
- Plan vaccination for South African farm risks with a veterinarian; overseas BTV-3 developments are not evidence of a local outbreak.