Wagyu Cattle Cross Experiment
By John Brethour, Beef Cattle Scientist of Western Kansas Agricultural Research Centers
In this experiment, a Wagyu bull was crossed with Charolais cows in an effort to provide a quality, lean carcass.
"The experiment involved steers produced from crossing Wagyu bulls and Charolais cows. They are part of a research goal to improve management strategies for production of high quality beef. Specifically these cattle were acquired to track the development of marbling as a function of time on feed in order to improve prediction models based on ultrasound estimates of marbling.
Wagyu is a high marbling breed from Japan. The cross with Charolais considered that a high marbling but lean carcass might be the result. That in fact occurred. The steers were harvested December 29, 1999. The 17 sold at that time graded 88% Prime (15/17) and the other two were average and high Choice. They were 47 percent Yield Grade 1, and also 47 percent Yield Grade 2 while one steer was a Yield Grade 3. Back-fat averaged only .30 inch. This might very well be the best carcass results on a group of cattle in the history of grading cattle in this country."