Episode Summary

In this episode of Pneu-Adventures, host Josh dives into the critical differences between subcutaneous (SubQ) and intramuscular (IM) injections in the remote delivery system space. Drawing from years of experience with white-tailed deer, Josh explains how to choose the right cannula (needle) length for various species, weights, and seasonal conditions. He shares real-world examples from deer farming and livestock management, emphasizing that needle size is not a one-size-fits-all decision. Whether you’re administering antibiotics to cattle or sedation to deer, this episode breaks down when to use ½-inch, ¾-inch, or 1-inch gel collar cannulas to ensure the most effective and humane delivery.

Show Notes

Topic: SubQ vs. IM – Choosing the Right Cannula Length in Remote Delivery

Host: Josh – White-tailed deer farmer & remote delivery expert

Key Points Covered:

Defining SubQ vs. IM:

- SubQ (subcutaneous): Injection beneath the skin into the fatty layer.

- IM (intramuscular): Injection deep into the muscle.

Species & Weight Considerations:

- Smaller animals (e.g., young deer, fawns): Shorter cannulas like ½-inch or ¾-inch.

- Larger animals (e.g., 250–300 lb bucks, cattle): Longer cannulas, often 1-inch, for IM work.

Seasonal Adjustments:

- Winter coats & added fat may require longer cannulas for effective IM delivery.

- Summer: Thinner hides and reduced fat make shorter cannulas sufficient.

Application Examples:

- Deer sedation: 1-inch for deep muscle injection in larger bucks.

- Cattle antibiotics: ½-inch for consistent SubQ delivery in the neck region.

Best Practices:

- Match RDD volume and cannula length to species, size, and intended injection type.

- Consider anatomy and seasonal changes before selecting equipment.

Pro Tip:

- The “ozone” spot (neck forward of the front shoulder) is ideal for SubQ in most livestock.