Wrinkly Skin & Creating Tension
A small number of producers occasionally report 'mis fires' when injecitng into the testes
Why is this happening?
When the ring is placed around the neck of the scrotum it bunches the wool, skin and internal tissues together, causing the skin to wrinkle in the zone where the needle injects. Occasionally, the needle then injects into a skin fold rather than popping through the skin under the wool, and the local anaesthetic is deposited outside the animal where it will have no effect.
How do I fix it?
- Create skin tension – this provides the needle with some tight, flat skin to pop through
- Once the ring is in place, scoop the Numnuts applicator forward and lift slightly up
- Inject
Still having issues? Try increasing the needle injection depth…
- With a 2.5mm Alan Key loosen the two screws on the underside of the back mount (the area that holds the injector unit on)
- Slide the injector unit forward
- Tighten up the screws
- Open the ‘jaws’ of your device
- Check needle depth
Try optimising the scoop technique on a number of lambs 50-60 before increasing needle depth, as a longer needle is more likely to cause issues hitting the bone when using Numnuts with the tail. The optimum exposed needle length that works for most people is 12mm from the end of the needle slot in the centre metal pin.
The feedback we hearing is this that although rare is most often an issue with:
- Wrinkly Merinos
- Lambs that have a lot of wool around their testes
Having issues injecting into the tails? Check out our tails docking trouble shooting help guide.
