Injection

When an animal is given an injection under the skin in what order does the needle penetrate the layers of skin?
When you get an injection Where does the needle go?When administering a subcutaneous injection into which layer of skin does the injection go?What la...
Why would you administer one injection type or the other on a cow?
What is the difference between a subcutaneous injection and an intramuscular injection?What is the best type of injection for cattle?Why subcutaneous...