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Published byEmil Stafford Modified over 9 years ago
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Names for Swine : Hogs Pigs Swine Swine Industry change: Factory farms
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First domesticated in Asia 9000 BC Bought to USA by Columbus in 1493 North America had wild hogs called boars ¾ of the hogs produced in the USA come from the corn belt states 60% + of hogs are grown in confinement Second largest livestock population in the USA – 70 million head Iowa, Illinois, and Indiana leading states with hogs. Upcoming is North Carolina
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Efficient in converting feed to meat Less feed needed to produce one pound of meat, better than beef. 4-5 pounds needed to produce one pound of pork verse 9 pounds of feed = one pound of beef. Swine very prolific – produce large numbers of young. Yield 65-80 % of carcass verse beef 50-60% Labor low
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Diseases and parasites – susceptible Large amounts of concentrates and little forages Require special attention at farrowing time Cost of corn is high Disposal of waste – difficult Odor
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Small family farms Factory farms
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Classifications Piglet – baby pig Barrow – castrated male pig Gilt – young female pig not farrowed Sow – aged female pig - farrowed Boar – male hog Swine – breed name Pig – under 100 pounds Hog – over 100 pounds Meat-type hog – lean with meat Lard type hog – has a lot of fat Major Meat – ham, bacon, loin, roast Barrow
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Duroc Hampshire Yorkshire Hereford Berkshire Poland China
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Type – selection of an animal that is close to ideal Pedigree – bloodline, record of heredity Probe – tool that measures backfat Ultrasonic device – measures backfat PSS – Porcine Stress Syndrome – Nonpathological disorder in heavily muscled swine. SPF – Specific Pathogen Free (Swine born in sterile environment)
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Boar Selection – docile, 6-7 months of age (purchase), breed at 8 months, good health, masculine, testicles well developed, 12 teats. Female Selection – free of defects, healthy, 1.2 inches of backfat, lean
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Feeder pigs – weaned at 40 pounds Finishing Pigs – markets at 220-240 pounds Purebred Pigs – breeding stock, pure blood lines Contract Production – a contract between a producer and a buyer before hogs are raised.
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Naturally produce offspring twice a year Normal Breeding – reach puberty at 4-8 months. – Most common method Gestation Period – 114 days Crossbreeding – 90 % of commercial hogs are bred this way. Artificial Breeding – Getting more popular, but the biggest problem is that you can’t freeze the sperm. Care of female – feeding, exercise Care of Male – plenty of room needed, exercise, feeding important Farrowing – Sanitation, signs of parturition. 70% of piglets born reach weaning. 30% die due to disease, bad weather, mashing by sow or other conditions. Environmental conditions – 60-70 degrees F
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Feeding the Sow fed liberally before birth and limited 3 days after birth. Increase feed after the 3 days slowly. Starting piglets on feed – Creep 7- 10 days old Needle teeth – upper and lower jaws Tail Docking – 1 inch, prevents tail biting Ear Notching – most common identification method Castration – done to all male swine intended for meat. Vaccination – Done before weaning.
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Carbohydrates, fats, Proteins, Minerals, vitamins, water (1/4 -1/3 gallon of water for every pound of dry feed consumed)
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Additives – Antibiotics increase production by 10%, but do not feed until animal is 5-6 weeks old. PST (Porcine Somatotropin) Growth hormone 15-20% increase Withdrawal time – 2- 70 days depending on drug.
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Parasites Internal - worms External – lice, mange, ticks Nutritional Diseases - diet Infectious Diseases – Bang’s (Brucellosis), Hog Cholera, Leptospirosis, Pneumonia lesions, Pseudorabies, Swine Dysentery.
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Pasture and dry lots Building with concrete slab floors Enclosed buildings with slotted floors
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Ventilation – prevents diseases Manure disposal Cleaning Space requirement – 8 feet Fencing – electrical or woven wire Handling equipment – loading chutes, cane, hog boards Feed and watering equipment
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Downwind of houses
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