At times spore counts will exceed 500,000, and even over a million in many areas, usually only in the North Island which is considered as “high risk”. That risk may continue into June in some areas.
Prevention may require more than one approach. e.g. Time capsules and pasture spraying.
Zinc can be used in a number of forms, but at high spore count, there will still be some affected animals. For lactating cows at least, ensure they also get limeflour and organic copper.
- Zinc oxide for drenching or mixed with feed. 2.5grm/100kgs lwt/day minimum
- Zinc sulphate (mono or heptahydrate; know which you have because they have different dose rates. Mono approx 5 grm/100kgs, Hepta 7.5gms/100kgs) can be used in water or feed. Make sure you have the correct dose. Make sure you check what sort of zinc is in meal and at what concentration!
- Zinmol is a molasses zinc product, useful in shed or in feed.
- Time capsule zinc boluses give good coverage for 4 – 6 weeks. Ensure you are using the correct sizes, and they must be repeated, up to 3 times.
Mycosorb added to drench or feed appears to help – use in addition to zinc – there is no research to prove any effectiveness against F.E, but it seems to help at high risk.
We need 60 gm (bread bag full) of grass from a height at which the cow is eating to. Do not get soil in the sample. (you will need to cut close to the ground) . Collect multiply samples from different locations where you anticipate moving your cattle.
Have them delivered to The Vet centre, and we should have your results the same day.