Managing Food Production
- Created by: Sophie
- Created on: 10-05-13 19:47
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- Managing Food Production
- Reduce the number of stages in the food chain
- Less energy and biomass every stage in a food chain
- For a given land, you can produce a lot more food by growing crops rather than by grazing animals, because you reduced stages in the food chain.
- Don't consume all of animal- waste
- Some land unsuitable for crop growing
- People need a varied diet to stay healthy
- Restricting energy lost by farm animals
- Intensive farming- can't move about, warm
- Less energy lost by movement and maintaing a core body temperature
- Transfer of energy from animall food to animal more efficient
- Grow faster on less food
- Cheaper for farmer and us
- Developing new food sources like mycoprotein
- Used for meat substitutes
- Fungus called fusarium is main source
- Fusarium grown in fermenters using glucose syrup as food.
- Glucose syrup gained from digesting maize starch with enzymes
- Fusarium respires anaerobically
- Sterilised using steam- to kill bacteria which produce toxins that damage fusarium
- Also compete for glucose/ 02
- Harvested and purified
- Advantages; Easy source of protein for developing countries, good when no land available for grazing
- Microbes grow quickly and don't need much space and can even feed on waste material unlike animals
- Reduce the number of stages in the food chain
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