Santa Gertudis, developed on the King Ranch in south Texas.They are 5/8 Shorthorn 3/8 Brahman. In 1940 the breed was recognized by the US Dept. of Agriculture as the first beef breed developed in the United States. They are also the first breed developed anywhere in the world in more that a century.
Santa Gertrudis cattle are a tropical beef breed of cattle developed in southern Texas on the King Ranch. Named for the Spanish land grant where Captain Richard King originally established the King Ranch. This breed was officially recognized by the US Dept of Agriculture in 1940, becoming the first beef breed formed in the United States. The origin given by King Ranch is from mating Brahman bulls with Beef Shorthorn cows, with the final composition being about 3/8 Brahman and 5/8 Shorthorn