ANSC 107 1st Edition Lecture 4Outline of previous lectureII. Breeds of LivestockIII. Breeds of Cattlea. British Breedsb. Bos Indicus Breedsc. Exotic Breedsd. Dairy Cattle BreedsOutline of current lectureI. Swine BreedsII. Sheep BreedsIII. Goat Breeds Current lecture Swine Breeds- Seed stock Producers- Commercial Producers - Corporate Production Unitso Conception to consumer o Sire and dam lines (individuals)o Economic traitso Vertically integrated Economic Traits- Reproduction- Short Generationo PEDS virus-price of pork goes up - 3 months 3 weeks 3 days gestation period- Growth rate (days to 280)- Feed EfficiencyThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.- Carcass traits Swine Associations- National Swine improvement federation (NSIF)- National Port Producers Council (NPPC)- Swine Testing And Genetic Evaluation System (STAGES) Landrace (Denmark)- White in color with huge drooping ears- Most prolific because of extra vertebraYorkshire (England)- “Mother Breed”-Very Maternal o Large litters 8-10 (No Bacon) - White with erect ears Duroc (US)- Reddish brown with drooping ears- Excellent growth rate and reed efficiency- Tend to be fatter than Hampshire sired pigs Hampshire (US)- Black with white belt around shoulders- erect ears - Lean muscular carcasses Pietrain (Belgium)- Black and white spotted with erect ears - Extreme muscularity and lankness- Normally stress positive o PSS-Porcine Stress Syndromeo PSE-Pale soft and exudative Sheep Breeds- Meat and Wool very important- Dual Purpose breedso Dorset, Columbia, CorriedaleFacts- Wool does not hold odor- Screwworm fly-feeds on live tissueo Got rid of it-women monogamous when mated not fertile  Made the males sterile- Super wash processo Wash wool in mild acid-removes outer cuticle so we can wash and wear - 95% of wool in USA goes to ChinaWool BreedsMerino (Spain)- Most dominant breed in the world wide sheep industryo Very fine fleeces-very high quality wool - #1 User of wool in USA-used in military Rambouillet (France) - Dominant range ewe in western USA and Texas o Very popular and hearty Columbia (US)- Very popular in North west - White faced, polled breedMeat BreedsDorset (England) - Known for milking ability and prolificacy (fertile)- Out of season breeding Hampshire (England) - Wool cap (head) and wool on boots - Rapid growth and muscularity- Face, legs, and ears are dark brown to blackSouthdown (England)- Efficient and maternal - Oldest sheep breeds imported into US Suffolk- Black head and legs - Spider gene-recessive lethal o Hereditary chondrodysplasiao Ss ¼ born deado “walking fall”Dual Purpose BreedsFinnsheep (Finland) - Incredible prolificacy - Milking ability Goat Breeds - Immigrants of Hispanic, Muslim and Caribbean originAngora (Turkey)- Produces mohair-luxurious fiber o Finest hair-worlds most valuable - Saved agriculture in the 50’s South African Boer Goat (South Africa)- Fast growing meat-type goato Prominent horns and broad drooping ears - Too much on show industryAlpine (French alps)- Good milkers Spanish goat (Spain)- Parasite resistant Nubian (African)- High