There are fewer blemishes, but they are still there. We still need to get the message to those giving injections. The body responds by becoming inflamed. Subsequently, there is a healing process requiring weeks to months. This scar tissue can still be seen 200 to 300 days following injection.
Blemishes come in two forms.
These will be observed within the first sixty days following an injection. The second form is a dry, scarred, woody- appearing pale area in the muscle. It is sterile, meaning there are not bacteria at the site. These are mild reactions but may require trimming at processing. These blemishes are more significant in young injected calves because they are more sensitive to injected compounds.