Farming Techniques Flashcards

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Why is only about 10% of biomass transferred to the next trophic level?

Biomass is lost due to respiration, parts of the animal not being eaten, and excretion as faeces.

What is the aim of organic farming?

Organic farming aims to produce high-quality food using sustainable methods that benefit the entire food system.

How do free-range conditions affect biomass in chickens?

Free-range chickens use more energy to maintain body temperature and for movement, leaving less biomass for growth and egg production.

What is intensive farming?

Intensive farming, otherwise known as factory farming, uses mechanised techniques, inorganic fertilisers, herbicides, and pesticides to achieve high yields efficiently.

How can the efficiency of biomass transfer be improved in intensive farming?

Efficiency can be improved by limiting the movement of animals and controlling their environmental temperature. This reduces energy expenditure on movement and warmth.

What are the downsides of using antibiotics and removing hedgerows in intensive farming?

Using antibiotics can increase antibiotic resistance in bacteria, and removing hedgerows reduces biodiversity and increases pollution from larger farming machinery.

Revision Notes
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