4,503
edits
Changes
Jump to navigation
Jump to search
Egg Incubation Physiology - Anatomy & Physiology (view source)
Revision as of 12:03, 22 July 2008
, 12:03, 22 July 2008→Heat Transfer to the Egg
* Transfer of heat from the body to the egg is the most important contribution of the incubating adult to incubation.
* Transfer of heat from the body to the egg is the most important contribution of the incubating adult to incubation.
* Most birds develop a seasonal bare patch of skin known as the 'brood patch' on part of the thorax and abdomen.
* Most birds develop a seasonal bare patch of skin known as the ''''brood patch'''' on part of the thorax and abdomen.
** 'Brood patch' is in direct contact with the egg to permit a greater heat transfer than if there were feathers between them.
** 'Brood patch' is in direct contact with the egg to permit a greater heat transfer than if there were feathers between them.
* At the same time, there is an increase in the size and number of blood vessels in the bare skin.
* At the same time, there is an increase in the size and number of blood vessels in the bare skin.