Animal Science Chapter #1
What is Animal Science? Care, management and production of domestic animals Animals used for food, clothing, weapons & tools What was the first domesticated animal? Dog for tracking, then herding
Domestication After animals become domesticated, they become dependent on man Most can’t survive in wild Most poultry can’t fly Sheep don’t shed wool Cows produce 20,000 lbs milk / year Birds produce 250 eggs / yr. (20 in wild)
Animal Use as Food Meat - (muscle tissue) Beef, Pork, Lamb, Goat, Poultry Milk - inexpensive source of protein cheese, ice cream, yogurt Eggs - pastries, mayonnaise, custards
Animal By-Products Bones - buttons, glue, mineral supplement for livestock feed (Calcium) Fat - chemicals, salves, creams, dressings, lubricants, soaps, food Glands - medicines, food additives Collagen - (connective tissue in joints) glue & gelatin Intestinal & Stomach tissue - lunch meats, surgical sutures, strings for musical & sports instruments (contents = fertilizer)
Animal Use as Work Cultivate land Transportation Control other animals Assist physically & medically handicapped Blind Epileptic & Diabetic
Other Animal Use Hides - leather Hair - wool, mohair, fiber Lab Animals - mice, rats, guinea pigs etc. Pets
What is the future of Animal Science? Embryo Transplant - can produce 20 calves from one cow per year Cloning - using an animal cell to grow an identical duplicate animal ??????