ADSC 2010 Lecture 1 Outline of Last Lecture I. We went over the course syllabus in the previous lecture. If you have any questions, you can refer back solely to the syllabus. Outline of Current Lecture I. What is Animal Science?a. Goalb. Biological Study of LivestockII. Species of Interesta. Cattle – Bovineb. Sheep – Ovinec. Goat – Caprined. Swine – Porcinee. Horse – Equinef. Chicken III. Sex Condition Terminologya. Intact and Castrated Male Tableb. Female and Meat Product TableCurrent LectureI. What is animal science?A. Goal- to profitably satisfy humans for food clothing, emotional well-being, shelter, fuelB. Biological Study of livestock:- Nutrition/metabolism- Genetics/ selection- Reproduction/ physiology- Growth/Development – How can we manipulate?- Production/ management – Business Side- End Product = food, clothing, milk, etc.II. Species of InterestA. Catlle = Bovine- Kingdom: Animalia- Phylum: Chordata – back bone & spinal cord- Class: Mammalia – milk, warm blooded, hair- Order: Artrodactyla – even toed hoofed animal (Back hoof with dewclaws)- Family: Bovidaw – ruminants: chew cud- **Genus: Boso Ruminant Quad. with horns that come laterally out of head- **Species: o Taurus – Continental Europe Cattleo Indicos- Africa/Asia Cattleo Bison- BuffaloB. Sheep (ovine): - K,P,C,O,F = same- Genus: Ovis- Species: AriesC. Goat (caprine):- K,P,C,O,F = same- Genus: Capra- Species: hiriusD. Swine (porcine):- K,P,C,O = same- Family: suidae – digestive system (monogastric = one stomach)- Genus: sus- wild European hog- Species: scrofa domesticus – hogs todayE. Horse (equine):- K,P,C = same- Order: perissodactyl – non-ruminant = odd number of toes- Family: Equidae- Genus: Equus (Zebras are from this same genus)- Species: Caballus (Horse) / Asinus (Donkey)F. Chicken:- K & P = same- Class: Aves – birds with wings & feathers- Order: Galliformes – short feet and beak- Family: Phasinanidae – ground dwelling birds- Genus: gallus- Species: domesticusIII. Sex Condition Terminologya. Intact & Castrated Male TableIntact Male Castrated MaleSpecies Young Mature Young MatureCattle Bull calf Bull Steer StagSwine Boar pigs Boar Barrow StagSheep Ram Lamb Ram / Buck Wether StagHorse Colt Stud / Stallion Gelding GeldingGoat Buck Buck Wether WetherChicken Cockerel Rooster / Cock Capon CaponTime it takes to mature from young to mature:- Cattle: 1 year to 2 years- Swine: 6-9 months- Sheep: 1 year- Horse: 2 years to 3 years- Goat: 1 year- Chicken: ?- Stag looks like bull = castrated after developed- Steer looks like female cow = castrated before developed - Chickens testes = internalb. Female and Meat Product TableFemale Meat ProductSpecies Young Mature Young MatureCattle Heifer CowSwine Gilt SowSheep Ewe Lamb EweHorse Filly MareGoat Doe DoeChicken Pullet HenTime it takes to mature from young to mature: after they produce a calf- Cattle: 2 years to 3 years- Swine: 1 year- Sheep: 1 year- Horse: 3 years to 4 years- Goat: 1 year- Chicken: ?*** We will finish the Female & Meat Product Table in the next
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