Three Types of Injections on Beef Cattle, Sheep, and
Name: Misty Johnson Subject: Animal Science
Plan Title: Injections Grade:
The lesson is designed to teach students how to identify, determine, and
administer injection in beef cattle, sheep, and swine.
Objectives: (TSWBAT…The student will be able to…)
Describe methods of administering injections.
Identify proper placement of injections
Identify proper procedures for…
o Placing a needle on a syringe
o Draw medicine out of a bottle correctly
o Administering intramuscular, intravenous, and subcutaneous
English I & II
1(6)(B), 1(6)(E), 1(7)(F)
Focus and Interest Approach:
How many people have extra money lying around to get a veterinarian to administer
every little shot necessary?
Today we will discuss:
Methods of administering injections and the proper placement of
injections in beef cattle, swine, and sheep.
Types of injections-
There are several types of injections that are administered to farm animals;
subcutaneous, intramuscular, intravenous, along with many other forms that we will
discuss on another day. It is very important to always remember that the directions on
the label should always be followed correctly.
Injected underneath the skin, not in a muscle. A tent should be made with the
skin, by pulling on it, behind the elbow or flank in hogs. For sheep, goats and cattle the
neck, in front of the shoulder should be used. Large amounts of fluids can be injected
under the skin without fear of pressure build up.
General rule for SQ is 16-18 gauge ½” to ¾”
Deposited in the muscle. IM injections are absorbed much faster than SQ. The
needle is inserted directly into a muscle. Must be aware of fat deposits because if the
drug is injected into fat the drug may not be absorbed properly. The skin should be
pulled up before inserting the needle and then released once the needle is in. By
releasing the skin it covers up the whole make and prevents it from leaking out.
Damage can occur if the injection is not placed properly. In hogs the injection
should be given in the neck in front of the shoulder. Should not be placed in prime cuts
because if and infection develops and abscesses can occur. Money will be lost at time of
slaughter because the cut will not be saleable
General Rule for IM is 16-18 gauge 1” to 1 ½”
Make in a vein, most commonly used is the jugular, once inserted the needle
should be directed towaq4ds the head, slow flow of medication should be used. If a vein
is not visible then thumb pressure or a tourniquet should be applied to stop the blood flow
and enlarge the vein.
Should usually be given by a veterinarian.
Follow all directions carefully. Do not administer the drug more frequently or in
larger quantities unless directed by a veterinarian. Make sure the needle is not too large
or small for the animal or the type of injection being given. Do not use bent needles, they
may break off in the carcass. Inject into clean dry areas to prevent abscesses from
occurring and damaging the carcass. If the animal is for slaughter be aware of
withdrawal times before injecting the animal.
Never give more than 10cc per injection in beef cattle. No more than 5 cc per injection
site for sheep, goats, and swine.
The students will be placed in to groups of two or three. Each person will be given a 3 cc
syringe and a needle, with strict instructions not to touch until instructed to do so
correctly. They will then demonstrate the proper procedure for placing the needle on the
syringe and drawing the liquid out of the bottle. Once each student has drawn out the
medicine they will demonstrate the correct procedures for injecting a liquid
intramuscular, intravenous, and subcutaneous. Each student will redraw liquid from the
bottle before injecting the liquid. The Styrofoam and bubble wrap is labeled according to
which injection is to be demonstrated.
Students will complete the attached worksheet for homework and will return it to class
the next meeting to be graded and given a grade.
Lesson re-teach. The students will pair up and rewrite the lesson with the best of there
memory without using any notes. Then as a class, we will go over the different topics
that they have written compared to there handout.
List of Materials:
Styrofoam, Bubble Wrap, Needles, Syringes, Sterile Water, Food Coloring