Behavioral observations and operant procedures using microwaves as a heat source for young chicks

Area of Science:

• Animal behavior
• Thermal biology
• Microwave technology

Background:

• Chicks require thermoregulation for optimal growth.
• Traditional heating methods can be energy-intensive.
• Investigating alternative heat sources is crucial for poultry welfare.

Purpose of the Study:

• To assess broiler chicks' response to microwave heat.
• To determine if chicks can utilize microwave heat through operant conditioning.
• To evaluate the safety and efficacy of microwave heating for young poultry.

Main Methods:

• Four trials using operant conditioning procedures were conducted.
• Chicks were housed at 16°C and exposed to varying microwave power densities (10-26 mW/cm²).
• Heat demand from microwave and infrared sources was measured.

Main Results:

• Chicks voluntarily demanded 28-63% of the heat provided by the microwave source compared to infrared.
• No correlation was found between heat demand ratio and microwave power density.
• No significant differences in growth were observed between chicks heated by infrared or microwave sources.

Conclusions:

• Eight-day-old broiler chicks can associate operant tasks with microwave thermal rewards.
• Chicks can effectively use microwave heat via operant conditioning without adverse health effects.
• Microwave heating presents a viable, safe alternative for poultry thermal management.