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Animal Science A
Animal Science Final
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 |