- Apr 4, 2011
- 1,169
- 134
- 161
All digestion creates heat, but it does not raise body temperature. Birds, as are mammals, are homoethermic...temps are fairly constant. Does your body temperature raise if you eat corn (yeah, maybe a fraction of a degree, but your body regulates it). That being said, there was a paper recently presented at the Australian Poultry conference suggesting summer diets have more fat to reduce the SDA (specific dynamic effect, or heat increment of feeding) because fats have less SDA than carbohydrates. The idea is that the bird has to "work (i.e. behavioral changes, gular flutter)" to dissipate the extra heat generated from digesting carbohydrates, and it reduces "productive energy" which is the energy converted into egg production. A diet higher in fats would increase the available productive energy by reducing maintenance energy.
Clint
Clint