Lecture 5 Slides

Lecture 5 Slides - Lecture 5 Feedlots Role in Antibiotic Resistance The processing of corn and production of high fructose corn sugar Regulation of

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Lecture 5 Feedlots: Role in Antibiotic Resistance ************** The processing of corn and production of high fructose corn sugar Regulation of blood sugar and role of HFCS consumption in the obesity epidemic
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Antibiotic Resistance Antibiotic Resistance • What is it • What causes it • How is it related to feedlots and the practices of the cattle iindustry
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Feedlots, antibiotic resistance, Feedlots, antibiotic resistance, and human health and human health • Crowding to high densities makes disease more likely in feedlot cattle. • The rumen of corn-fed cattle is more acidic than that of grass-fed animals. It is thus more like the human stomach, and harbors similar strains of E. coli. • Prophylactic use of antibiotics reduces incidence of illness and improves growth rate of feedlot cattle • Mutant bacteria that can resist the antibiotics proliferate • These selected, acid-tolerant bacteria are present in the meat and may spread to and survive in humans (particularly if the meat is not thoroughly cooked).
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Can Antibiotic Resistant bacteria endanger human health? • About 70% of antibiotics on the market today are used in farm animals • Antibiotics used in feedlots and farms attack microbes that can infect humans • Overuse, particularly as a preventative measure, selects for resistant strains • Controversy about sources of antibiotic resistance in humans
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This note was uploaded on 05/18/2008 for the course BIO 105 taught by Professor Adler,irschick,podos during the Fall '08 term at UMass (Amherst).

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Lecture 5 Slides - Lecture 5 Feedlots Role in Antibiotic Resistance The processing of corn and production of high fructose corn sugar Regulation of

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