The month of May is traditionally the time when “spring round-ups” take place. This is the time that large and small cow/calf operations schedule the “working” of the calves. As the majority of the calves reach their second month of life, it is time to castrate the male calves and immunize all of the calves to protect them against blackleg. Also the new information from Oklahoma State University and the Noble Foundation (Kirkpatrick, 2008) suggests that in some situations, calves may be vaccinated for the respiratory diseases, i.e. IBR and BVD.
Correct administration of any injection is a critical control point in beef production and animal health. There is a negative relationship between meat tenderness and injection sites, including injection sites that have no visible lesion. In fact, all intramuscular (IM) injections, regardless of the product injected, create permanent damage regardless of the age of the animal at the time of injection. Tenderness is reduced in a three-inch area surrounding the injection site. Moving the injection-site area to the neck stops damage to expensive steak cuts. Therefore, cow/calf producers should make certain that their family members, and other hired labor are sufficiently trained as to the proper location of the injections before the spring calf-working begins.
Give injections according to label instructions. Subcutaneous (SQ) means under the skin, intramuscular (IM) means in the muscle. Some vaccines (according to the label instructions) allow the choice between intramuscular (IM) and subcutaneous (SQ). Always use subcutaneous (SQ) as the method of administration when permitted by the product’s label. Remember to “tent” the skin for SQ injections unless instructed otherwise by the manufacturer.
Beef producers are encouraged to learn and practice Beef Quality Assurance Guidelines. You can learn more about the Oklahoma Beef Quality Assurance program by going to the website: http://oklahomabeefquality.com/ The Oklahoma Beef Quality Assurance Manual can be downloaded from that site. Also make plans to attend one of the “Back to Basics” Field Days to learn more important practices to enhance Beef Quality Assurance.
Source: Glenn Selk, Oklahoma State University Cattle Reproduction Specialist