Animal Science Chapter 1
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animal science is
the branch of science dealing with the domestication of animals; a collective study.
what do people use/need animals for?
food supply, sports & recreation, manufacturing, religion, companions, sustainability, & medicine.
what is agriculture?
complex resource management system developed to coax a more stable food supply from land
____ suggests dogs may have been domesticated from wolves about ____ years ago
DNA sequencing technology; 30,000
___ evidence suggests dogs may have been domesticated from wolves about ___ years ago
archaeological; 14,000 (2,000 B.C)
large farm animals increasing __ annually, poultry increases ___ annually.
1% ; 5%
Animal science specialties include
genetics/animal breeding nutrition physiology (internal & reproductive) animal health/tech ethology meat science dairy product science biotechnology
what supplies the majority of food energy consumed by people?
plants (82.3%), animals supply the other 17.7%
nutrient dense
nutrients digestible & readily available
what animal was utilized in cleft palate repairs?
Spanish goat
how much of livestock feed is not suitable for human consumption? what are they?
2/3 ; hay, pasture, coarse forages, by-products, garbage, & damaged food.
pig derived products
(desiccated) thyroid, pig intestine, pancreatic enzymes
glucosamine, omega 3 fatty acids, and calcium come from
shellfish
animal bones provide ____ and animal blood provides ___
calcium; heme iron (profferin)
horses provide
Premarin
gelatin capsules/gummy vitamins and chondroitin are derived from
animal cartilage
we get ___ from sheep’s sebaceous gland
lanolin & vitamin D3