Agriculture Reference
In-Depth Information
Table 12.1
Needle size recommended by the
author.
Age
Gauge
Length
< 4 weeks old
22 or 20
1/2 inch (1.5 cm)
4 to 16 weeks old
20
5/8 to 3/4 inch (1.5 - 2 cm)
4 to 6 months
20
1 inch (2.5 cm)
> 6 months
20 or 18
1 inch (2.5 cm)
Sources: Dawson, 2005 ; Swize, 2007 .
Figure 12.1
Round is the area on the rear leg
between the tuber coxae and the hock. Drawn
by Zeke Proctor.
Figure 12.3
Subcutaneous injections are given
behind the elbow joint or in front of the
shoulders. Drawn by Zeke Proctor.
vaccine. Massage the area after removing the needle
(Dawson, 2005 ; Dawson, 2007a ).
Subcutaneous Injections
These injections are usually given in the axillary region,
behind the elbow joint, or in the triangular area in front of
the shoulders (Figure 12.3). Pull a pinch of skin making a
tent. Insert the appropriate size needle into the tent, making
sure it does not pierce through the other side. Always insert
the needle pointing toward the ground to lessen the likeli-
hood of the drug or vaccine leaking out of the hole formed
by insertion of the needle. Aspirate the plunger of the
syringe and make sure there is no blood fl owing back into
the syringe. Depress the plunger slowly, and massage the
area injected (Dawson, 2005 ; Dawson, 2007a ).
Figure 12.2
Intramuscular injections are given in
the triangular area of the neck. Drawn by Zeke
Proctor.
directly into the muscle. Before injecting, draw the plunger
and make sure that the needle has not entered a blood
vessel. If blood enters the syringe, withdraw the needle
slightly and redirect into the muscle. If the location is ideal,
slowly press the plunger and administer the drug or
