What kind of energy is a hamburger?
Hamburger The average quater-pound hamburger patty begins its existence in a calf born on a privet cattle farm. For the first few months of life, the calf nurses from his mother, and then he begins to graze on pastureland. Grass is the natural diet of cows and other ruminants, animals that have evolved to extract nutrients from hardy cellulose plant matter that humans find indigestible. After about nine months, the cow boards a tractor trailor and jouneys to a cattle feedlot, where he will spend the rest of his life, eating from a trough, in an enclosure roughly half the size of a football field. Untill the 1950’s, cattle were grazed on pastureland untill big enough to slaughter, a process that took two to three years. In concentrated feedlots, cattle can be fed high-nutrient diets that allow them to grow to maturity – roughly 1,100 pounds – in as little as 14 months. That high-nutrient nourishment represents a sophisticated diet of corn flakes mixed with other grains like sorghum and
