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 Goal b Biological Study of Livestock II Species of Interest a Cattle Bovine b Sheep Ovine c Goat Caprine d Swine Porcine e Horse Equine f III Chicken Sex Condition Terminology a Intact and Castrated Male Table b Female and Meat Product Table Current Lecture I What is animal science A Goal to profitably satisfy humans for food clothing emotional well being shelter fuel B 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 Interest A 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 Bos o Ruminant Quad with horns that come laterally out of head Species o Taurus Continental Europe Cattle o Indicos Africa Asia Cattle o Bison Buffalo B Sheep ovine K P C O F same Genus Ovis Species Aries C Goat caprine K P C O F same Genus Capra Species hirius D Swine porcine K P C O same Family suidae digestive system monogastric one stomach Genus sus wild European hog Species scrofa domesticus hogs today E 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 III Genus gallus Species domesticus Sex Condition Terminology a Intact Castrated Male Table Intact Male Castrated Male Species Young Mature Young Mature Cattle Bull calf Bull Steer Stag Swine Boar pigs Boar Barrow Stag Sheep Ram Lamb Ram Buck Wether Stag Horse Colt Stud Stallion Gelding Gelding Goat Buck Buck Wether Wether Chicken Cockerel Rooster Cock Capon Capon Time 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 internal b Female and Meat Product Table Female Meat Product Species Young Mature Cattle Heifer Cow Swine Gilt Sow Young Mature Sheep Ewe Lamb Ewe Horse Filly Mare Goat Doe Doe Chicken Pullet Hen Time 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 lecture
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