GM foods
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GM foods

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  • Full Name Full Name Comment goes here.
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  • Balanced presentation - but misses some points (if I may be so bold):
    1 - GM foods are not entirely banned in UK as dairy produce from cattle FED on GM feedstuff is already being sold. So GM is entering the food chain by stealth.
    2 - 'solving world hunger'? Is it? Talk to Dr Vandana Shiva on that one. She is increasingly of the belief GM could lead to a massive food crisis.
    3 - Not much mention of government role in GMO. Corporations and government pose a significant risk of 'skewing' the advertised benefits of GM due to power and deep pockets of available cash.
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  • First introduced in 1990 not mutagenesis (exposed to chemicals and radiations) specific and stable
  • Golden rice – rice that contains beta-carotene (Vitamin A), which is not found in regular rice. Bt corn – corn that contains a chemical normally found in a bacterium ( Bacillus thuringiensis ) that is toxic to insects but not to humans. Herbicide resistant plants-eggplant, tobbaco, rice
  • More profit Efficient production
  • Nilwala project area Protection in drought conditions Production in frosty season Survive in flood seasons-this area rice
  • Reduce cost for the chemicals Save money
  • Protect natural resources Save labour costs
  • Development of pest resistant crops Reduced herbicide use is better for the environment and reduces costs for farmers
  • Body become antibiotic resistant
  • human health impacts- allergens, transfer of antibiotic resistance markers, unknown effects For example, inserting genes from a nut into another plant could be dangerous for people who are allergic to nuts environmental impacts-including unintended transfer of transgenes through cross-pollination, unknown effects on other organisms (e.g., soil microbes), and loss of flora and fauna biodiversity Economic-reduced compitition(GM seeds are patented) Suicide seeds-Plants with sterile seeds that are infertile are created Farmers are forced to buy seeds every year
  • Ethics -Violation of natural organisms' intrinsic values Tampering with nature by mixing genes among species Objections to consuming animal genes in plants and vice versa Stress for animal Labeling -Not mandatory in some countries (e.g., United States) Mixing GM crops with non-GM products confounds labeling attempts

GM foods GM foods Presentation Transcript

  • GENETICALLY MODIFIED FOODS: IS IT HEALTHFUL OR HARMFUL???
    • Group no : 01
    • Genetically modified (GM) foods are foods derived from genetically modified organisms.
    • Alter the genetic makeup of animals/plants
  •  
  • GM FOODS IN THE WORLD
    • Cotton
    • Rice
    • Soy bean
    • Sugar cane
    • Tomatoes
    • Sweet corn
    • Canola
    • Potato
    • Papaya
    • Sugar beet
  • PERCENTAGE OF CROP THAT ARE GENETICALLY MODIFIED IN US
    • Hawaiian papaya – 50%
    • Quest brand tobacco– 100%
    • Soy – 85%
    • Cotton – 76%
    • Canola – 75%
    • Corn – 40%
  •  
  • GENETICALLY MODIFIED FOODS: HELTHFUL
    • Crops
    • Increase taste, quality, nutrients
        • Valuable nutrients
        • User acceptable
        • Increase pre f erence
    β carotene
  • 2.Less maturation time Less time More profit Protect from adverse weather condition 3 months 2 months
  • 2.Increace yield More money Farmer accepted Non GM Crops GM Crops
  • 4.Resistant to disease, pest, herbicide High yield high quality User acceptance Disease Resistant Corn
  • 5. Stress tolerance
    • Drought resistant crops.
    • salt-tolerant cro ps .
    • Frost resistant crops.
    • Flood resistant crops.
    • Development of crops that make more efficient use of nitrogen and other nutrients.
  • 6. New products / growing techniques
  • ENVIRONMENT
    • 1. Reduced use pesticides and herbicides in farming
    • Pest resistant crops
    • Money save
    • Low cost farming
    • Bacillus thuringiensis crystals
    GM seeds Non GM Seeds
  • 2 Herbicide resistant crops Can apply herbicide without any disturbance. Time consuming Labor consuming Less cultural practices Genes Non resistant crops resistant crops Herbicide resistant biotypes
  • 2 . Conservation-soil, water, energy Round-up tolerant soybean No tillage / Plowing / Harrowing No soil erosion Save water Weeds control by “Round-up
    • Environment :
      • "Friendly" -bio herbicides /bio insecticides
      • Bio processing for forestry products
      • Better natural waste management
      • More efficient processing
    • Society :
      • Increased food security – growing populations
  • More food Cheaper food Reduced risk Increased nutrition
    • Tolerent / resistance crops (Pests, Diseases, Drought, Frost, Flood)
    Edible vaccines Reducing world hunger and improving world health
  • GENETICALLY MODIFIED FOODS: HARMFUL
  • SAFETY 1. Human health impact
      • Allergens (peanuts)
      • transfer of antibiotic resistance markers
      • unknown effects
    New genes + Antibiotic markers Conventional crops GM crops Antibiotic in body Problems arise when using antibiotics Consume
  • 2. Environmental impacts
      • Loss of bio diversity
    Bt corn kill monarch larvae
    • Genetic transfer to Non target species
    • Super weeds
    Herbicide resistance improved crop Weeds related to crop(Same Spp) Resistance gene transfer to weeds Super weeds Can’t destroy using weedicide Pollination +
    • Super pest
    + Resistant genes Resistant pest Non resistant pest Develop resistance
  • Narrowed Gene Pool
    • Highly popular local varieties lose their identity and existence.
    • Extinct traditional varieties
    • Limits to some extent of strains
    • Economical
        • Reduced competition
        • Suicide seeds
        • High seed cost
    • Ethics
    • Violation natural organisms
    • Tampering nature
    • Objections to consuming animal genes in plants
    • Stress for animal
    • Society
    • New advances may be tilted to rich countries.
    • Labeling
    • Not practiced in some countries (USA).
    • Mixing GM crops with non-GM products.
  • SRI LANKA AND GM FOODS
    • May of 2001 Sri Lanka has banned the importation of GM foods.
    • Sri Lanka are restrict all soy bean product like soy milk, soy sauce, soy flour and tomato based food product (ketchup, sauce), and brewers yeast..ect…
    • The new low introduced by the health ministry bans all imports of raw and processed food in 21 categories if they have been genetically modified.
    • 64 different varieties of food items in our grocery stores with GM contamination.
  • GM RESTRICTED COUNTRIES
    • Africa : Algeria, Egypt
    • Asia : Sri Lanka, Thailand, China, Japan, Philippine
    • Europe : Norway, UK, Spain, Italy, France
    • Middle East : Saudi Arabia
    • Pacific : Fiji, Australia, New Zealand
  • HUMAN RESPONDS IN PRESENT…
    • Environmentalists warn against the use of GM technology on crops
    • Useful to compensate the food demand of growing population
    • GM does not produce toxins
    • They are harmful to specific insects , pathogens ,weeds. But not to human or animal
    • Technology should be debated being permitted
    • People should have the right to accept or reject any new invention
    • Use
    • we must proceed with concern to avoid causing unintended harm to human health and the environment as a result of our enthusiasm for this powerful technology.
  • SO WHAT WE HAVE TO DO AS AGRICULTURISTS ????
    • It is up to you,
    • What we can say is….
    Thanks all of you
  • REFERENCES
    • http://en.wekepidia.com
    • http://www.ornl.gov
    • http://www.brighthub.com
    • http://www.csa.com
    • http://www.actionbioscience.org
    • http://www.geneticallymodifiedfoods.co.uk
    • “ Saru” magazine (1994), Faculty of Agriculture University of Peradeniya.
    • Genetically engineered crops, (2007), HFAPP, New York
    • Genetic modification in the food industry a strategy for good quality improvement, (1998), Blackie Academic London.
    • Brave new seeds the threat of gm crops to farmers, (2000), zed books London.