ALWAYS USE A 6mm (1/4 inch) NEEDLE
Studies have shown that sheep and lambs should only be vaccinated with a 6mm (1/4 inch) 18G needle. Longer needles, 12mm (1/2 inch) needles or longer will likely puncture the muscle on every vaccination and increase the risk of damage to the carcase.
The following table shows the recommended angles for efficient and effective vaccination for all classes of stock.
Class of Stock |
Needdle Gauge |
Needle Length |
Needle Angle To Skin |
Lambs |
18G |
1/4 INCH |
45° |
Adults off-shears/short wool/low body condition score |
18G |
1/4 INCH |
45° |
Adults with wool growth |
18G |
1/4 INCH |
90° |
CLICK HERE FOR FURTHER INFORMATION
Ensure that your needles are clean and sharp before use – CHANGE your needles every 50 doses or if the needle becomes damaged, burred or bent.
A shrouded vaccinator is recommend as it improves the deposition of vaccine in the subcutaneous space under the skin. The shroud improves human safety as it removes the second hand from the injection site as it self-tents the skin when vaccinating at a 45 degree angle. The diagram below indicates the recommended needle bevel orientation.
CLICK HERE TO VIEW INSTRUCTIONAL ADMINISTRATION VIDEOS