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Animal Science A

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Created by: ahollins0002

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Question	Answer
define animal science	study of domesticated animals
first domesticated animal was _______	sheep
last domesticated animal was______	horse
animal science principles (8)	breeding -- heredity nutrition -- nutrients and body's use physiology -- physical and chem processes animal health -- diseas ethology -- biology of animal behavior meat science biotech -- adaptation of biology via technology (insulin) dairy science
whats is worlds farm popuation	4.5 billion
contributions animals made to humanity (7)	food clothing draft animals entertainment biomedical research companionship by products
what is a nutrient	chemical substance providing nourishment for the body
which animal is currently responsible for producing the most meat in the world	pork
_____ will take over the most meat production in the world by 2020. Why?	poultry - tech - genetics - management
___ produces the second most milk production in the world	buffalo
non food animal contributions (5)	drafting weed control fiber/hide conservation ecological
what animal product is renewable	wool -- its sheared every year
__ produces wool	sheep
____ produces mohair/cashmere	goats
what species produces Huacaya and Suri fleece	alpacas
draft animal uses (3)	packing pushing pulling
five categories of stresses	climatic -- weather internal -- gains entrance to body geographical -- location - altitude and terrain nutritional -- lack of nutrition social - other animals, humans
three factors causing climatic stress	weather temp sunburn wind solar radiation
what causes nutritional stress	drought and lack of forage
two causes of internal stresses	pathogens toxins
two reasons for geographical stress	terrain altitude
two situations of social stress	human interaction other animals (dominance)
three ways animals adapt	morphological/anatomical - color, horns physiological - internal changes behavioral - finding food, protecting itself
four climates	tropical - humid and rainy desert - dry and hot cold - stress and lack of food temperate - most productive
what climate is most productive agriculturally	temperate
three levesl of ag development and countries	developed - usa subsistance - china primitive - africa
six nutrients	water lipids proteins carbs vitamins minerals
two types of feedstuffs	concentrate - grain forage - hay
six stages of production	maintenance growth finishing production reproduction work (draft)
three reproductive techniques	embryo transference AI envitroo