Modern Farming Methods

• What should you be able to describe by the end of the video?

  How to improve food production efficiency
• What are the advantages of modern farming techniques?

  They improve efficiency of biomass transfer
• Why do some people have ethical objections to intensive farming methods?

  They believe animals should engage in natural behavior
• What percentage of biomass is transferred from one trophic level to the next?

  About 10%
• What happens to the material eaten by an animal?

  Not all material is digested and absorbed
• What is one reason biomass is lost during respiration?

  Energy is used for movement
• Why do free-range chickens have less biomass available for growth?

  They use energy to maintain body temperature
• What is a problem associated with free-range chickens?

  Biomass is used in respiration
• How do intensive farming methods improve biomass transfer efficiency?

  By restricting movement and controlling temperature
• What is factory farming also known as?

  Intensive farming
• What is one advantage of indoor chickens compared to free-range chickens?

  They produce more eggs
• What is a disadvantage of factory farming?

  Infectious diseases can spread easily
• Why are antibiotics used in factory farms?

  To prevent the spread of infectious diseases
• What is a potential risk of using antibiotics in farming?

  Increased risk of antibiotic-resistant bacteria
• How can crowded conditions affect animals in factory farms?

  They can become more stressed and aggressive
• What do ethical objections to intensive farming focus on?

  Animal welfare and natural behavior
• How do free-range chickens engage in natural behavior?

  By foraging for insects in the soil
• What are the advantages and disadvantages of factory farming?

  Advantages:

  • More efficient food production
  • Less biomass wasted in respiration
  • Controlled nutrient intake for animals
  • Easier egg harvesting

  
  

  Disadvantages:

  • Spread of infectious diseases
  • Use of antibiotics increases resistance
  • Crowded conditions cause stress
• How do modern farming methods improve biomass transfer efficiency?

  • Restrict animal movement
  • Control environmental temperature
  • Provide high-protein diets
  • Reduce energy used for movement