Value of Animals
*Why were animals Domesticated?
*Food Uses of Animals
Meat: Nutrients provided by meat are important for human survival.
Protein & EnergyProtein (amino acids): Energy measured as calories
Pigs and Cows
Pig production is concentrated in central U.S. bc feed grains & valuable land
although pigs are raised in confinement; Iowa 1st, NC 2nd, MN 3rd
3 types of operation:
Farrow to finish, commercial & purebred; farm does every
Livestock and Companion Animal Breeds
Breeds are more alike genetically than commercial stock but arent pure genetically
Purebred = a member of a breed whose parents are recorded in the registry of that
Breed characteristics those char. w
Livestock and Carcass Grades
Market Class a group of animals separated by use
Bull has no designated quality grades
Bullock: show some sex char. like bull but younger
Quality grade: taste & eating satisfaction
Yield grade: cut ability & how big; lean
Intro to Animal Science
*Animal Science- the field of science that includes the study of all aspects of domestic
*Domestication- the process by which humans take wild species and acclimatize them to
breed and survive in captivity.
*Amount of anim
Food Safety Industry for Animal Products
What are health risks from foods?
Product tampering #2 (not much trouble w/ this today)
Pesticide residues #3
One cause for food supply not being safe
Applied ethology: scientific study of the behavior of domesticated animals
Animals communicate by visual, auditory, tactile, & olfactory
Animals are more sophisticated in smell than humans especially dogs
Pigs like to
Components of Animal Meats and Meat Industry
Meat: any animal tissue or organ used for human food
Four areas/types of meat: (some overlap)
Red meat: beef, pork, lamb, veal, goat, bison, ostrich, rabbit,
vension (farm raised or wild)
Animal Science Study Points
1. We use animals in many ways. Name four ways we have use animals.
2. Define animal science.
3. Define agriculture.
4. What was the first animal domesticated.
5. Animal science deals with conception to death, behavior to manag
GI Tract and Horse and Ruminant Physiology
-Digestion in the horse:
>Small, so feeding is frequent
>Have one-way peristaltic movements
>Horses cannot belch/regurgitate colic
>Major site of digestion and absorption of