Lesson 90 3/23/18 SWBAT identify the negative effects of global meat production. Do Now: Check on seeds; count and record the number of seeds that.

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Presentation transcript:

Lesson 90 3/23/18 SWBAT identify the negative effects of global meat production. Do Now: Check on seeds; count and record the number of seeds that germinated in each group

Announcements Unit Exam on Thursday, 3/29 If you are going on the trip with Ms. Ryan or will be absent on Thursday, you MUST take the exam Wednesday, 3/28 during 7th period

Reading Read the case study and answer the questions

Brainstorm Advantages Disadvantages

Industrialized Meat Production CAFOs (Confined Animal Feeding Operations) Keeping large number of animals in a small space.

Industrialized Meat Production Corn-based diet Cows can gain more weight in less time Requires less space

Advantages of CAFOs Increased Meat production More profit Less land use protection of biodiversity Reduced overgrazing Reduced soil erosion

Advantages of CAFOs Increased meat production increased meat consumption

Disadvantages of CAFOs Contribute to climate change CAFO cattle produce twice as much methane as grass-fed cattle

Disadvantages of CAFOs Hormones given to animals Hormones stimulate growth and milk production Used for beef cows and dairy cows Raises human health concerns How much is in our food products? How much do we absorb?

Disadvantages of CAFOs Antibiotics given as preventatives Increase in antibiotic resistant bacteria

Disadvantages of CAFOs Zoonotic Pathogens crossing over to humans Mad cow disease H1N1 Flu (swine flu) Avian Flu

CAFOs Disadvantages CAFOs contribute to water pollution. Runoff carries nitrates and bacteria from manure into nearby lakes and streams. This can trickle down into ground water.

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Discussion Do you think the advantages of CAFOs outweigh the disadvantages? Why or why not? What are some strategies that you think we could implement to change food production in the meat industry?