animal husbandry : the science of breeding and caring for livestock backgrounder : person who cares for cattle just before they go to a feedlot barbed wire : metal wire used to make fences bovine : scientific term for cattle brand : symbol representing ownership brand inspector : someone who inspects brands on cattle and horses branding : act of putting the ownership symbol on an animal bronco : wild horse bull : male bovine calf : young male or female bovine cattle rustling : stealing of cattle Choice : in the middle between Prime and Select when grading beef chuckwagon : wagon that carried food and supplies on trail drives co-products : non-food products from livestock collagen : the most abundant protein found in animals Coronado : Spanish explorer who traveled through southwest Colorado cow : female bovine cowboy : person who cares for cattle cross-contaminating : transfer of harmful bacteria to food from other foods , cutting boards , utensils , etc cross fencing : building fences to divide pastures into smaller areas cull : to select or remove from the herd ; poor quality EID tags : electronic identification ear tags fatty acids : a raw material found in fats and used to make many products feedlot : penned area where cattle are fed forbs : broad leafed plants free market system : allowing supply and demand to set the price gelatin : formed when collagen is broken down into parts glands : organs that produce hormones glue : something that helps things stick together glycerin : remains when fatty acids are removed from fats grade : ranking beef grass fed : cattle that eat only grasses hay : grasses cut and stored for later use homesteaders : people who settled an area hormones : products of living cells that circulate in body fluids land grant : government award of land leather : animal hide made soft and flexible by process called tanning livestock : domestic animals raised for food and fiber marbling : amount of fat in a cut of beef open range : unfenced areas that can be grazed by livestock oxen : bovine that were used to pull wagons and plows packer : person who processes cattle into meat palatability : juiciness , tenderness , and flavor of beef Prime : considered the best beef with the most tenderness and marbling public lands : lands managed by federal government ranching : managing grasses for raising livestock raw products : products used to make other things recycle : to reuse ruminants : herbivores that have complex stomachs and split hooves roundup : gathering cattle in one location seed stock : animals used for breeding Select : beef with the least amount of fat and marbling steer : neutered male bovine supply and demand : more supply , the lower the price ; the less supply the higher the price tallow : fat from cattle tanning : process by which an animal ’ s hide is turned into leather traders : people who buy , sell and trade goods tradition : how something has been done over the years trail drives : moving large numbers of cattle over long distances vaca : cow ( in Spanish ) vaquero : Spanish cowboy