EEE 105
description
Transcript of EEE 105
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EEE 105EEE 105
http://www.life.uiuc.edu/animalbiology/105/Name: eee105Password: prAIRie
AgricultureAgriculture
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Genetically Modified Crops
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Genetically Modified Crops
Monsanto
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Bacillus thuringiensis e.g. Bt crops
a common soil bacterium produces an insecticidal protein long used by organic gardeners
bt gene inserted into crop genomes
Genetically Modified Crops
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Bt corn
2001
64%
24%
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Bt cornThe Starlink fiasco
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Bt cornCry9C protein not digested is it allergenic?
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Bt corn
Cry9C
Taco Bell
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Bt corn
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Genetically Modified Crops
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Genetically Modified Crops• 1998 European Union bans new GMO crops• “Frankenfoods”• Japan & South Korea follow• 10/01 EU requires labeling of GMO crops• U.S. rejected labeling
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Genetically Modified Crops
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Bt cornIs Bt harming good insects?
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Genetically Modified Crops
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Integrated Pest Management
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Integrated Pest Management
understand biology of pest & crop
seek to restrain, not eliminate, pest
combine genetic, chemical, biological control methods
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Integrated Pest Management
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Livestock Farming
a family farm
Factory FarmingFactory Farming
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• Mega hog farms• 10 million hogs in North Carolina• Hog waste lagoons
Factory Farming
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Factory Farming
a true lagoon
a waste lagoona waste lagoon
one mega hog farm produces one mega hog farm produces as much waste as 12,000 people as much waste as 12,000 people
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Factory Farming
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Factory Farming
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Factory Farming
Spills, seepageSpills, seepage
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Factory Farming
Spills, seepageSpills, seepageFish killsFish kills
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Factory FarmingPfiesteria -- the Cell from Hell
Spills, seepageSpills, seepageFish killsFish killsPfeisteria Pfeisteria -- the Cell From Hell-- the Cell From Hell
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• 70% U.S. grain production fed to livestock
• 40% of antibiotic usage is in livestock feed
• Antibiotic-resistant bacteria evolve in cattle & dairy industry
• U.S. Hormone-treated beef banned by Europe
Factory Farming
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Factory FarmingBeefBeef
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Factory FarmingBeefBeef
Cattle Feed lotsCattle Feed lots
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Factory FarmingBeefBeef
Grass-fed cattle take 4-5 years to raiseGrass-fed cattle take 4-5 years to raise
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Factory FarmingBeefBeef
Cattle Feed lotsCattle Feed lots
Reach 1200 lbs in 14 monthsReach 1200 lbs in 14 monthsCorn-fed beefCorn-fed beef
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Factory FarmingBeefBeef
High is saturated fatsHigh is saturated fatsCorn-fed beefCorn-fed beef