AMES, Iowa - - The double vaccination (double-tagged) program was instituted to address changes feedlot buyers wanted in the pre-conditioning health program. Pre-conditioning is a calf management program designed to reduce risk, health problems and improve profitability.
The double-tag procedure requires two modified-live vaccinations for the 4-way viral, 7-way Clostridial, and Haemphilus Somnus, one vaccination for Pastuerella, and internal parasite treatment, in addition to the green-tag procedures of vaccinations, castration, dehorning, 30-day weaning and 60-day ownership.
Research conducted at three pre-conditioned sales in the winter of 2003-2004 that allowed producers to sell green-tag or double-tagged calves attempted to determine the value of the double vaccination. The sale data was analyzed to determine the value differences between traditional green-tag and double-tagged feeder calves.
The analysis predicted how sex, color, frame score, lot size, cleanliness (dirt and manure tags) of the animals and the day of the sale affect the price of feeder-cattle in the auctions. The analysis also evaluated if the buyers were willing to pay more for cattle that are double-tagged, implanted or treated for parasites, which are added expenses for the sellers.
“Double-tagged cattle did receive a price premium in the auction market with respect to green-tagged cattle, therefore internal parasite treatment and double vaccination showed to have a value that the buyers are willing to pay for it,” said Maro Ibarburu, Iowa State University researcher.
For more information or to read the full report, visit the Iowa Beef Center’s Web site at www.iowabeefcenter.org and click on the 2005 Beef Research Report link under Activities and Research or call (515) 294-BEEF.