Current ultrasound equipment is capable of detecting small flecks of intramuscular fat, or marbling, but quantifying these amounts is more difficult. Technicians cannot visually differentiate between signals reflected by marbling from those reflected by other structures, such as connective tissue, blood veins and arteries, which permeate muscle tissue. Research efforts have concentrated on statistical analysis of ultrasonic images. The accuracy of these systems to quantify marbling in yearling breeding cattle and in feedlot cattle is not well documented. As with most new technology, businesses arise to capitalize on advancements.
Most groups charge a per head fee in addition to reimbursement of travel expenses.
Fees are based on the number of animals to be scanned. As with most services, quality of the information received varies with the experience and ability of the technician. National organizations publish lists of certified technicians that have met minimum requirements for certification, and may be able to provide some additional information on available technicians. Summary The use of real-time ultrasound has had a considerable impact in reducing excess fat in swine herds as major breeding companies have employed the technology in their selection process. Similar advances in total lean production in beef cattle, due to the use of ultrasonic measurements or any other selection tool, have not materialized.