We at Columbus Instruments developed RESPIROMETER which can be used from
cell respiration to animal and even in humans. A study of the fly larva,
Sarco phaga Crassipalpis, during diapause was performed to detect the
periodic changes in oxygen consumption which are characteristic of the
larva. During diapause, the larva exhibits high rates of oxygen
consumption on some days, and on the other days oxygen consumption drops
to very low levels. The periodicity is approximately 4 days.
This phenomenon was originally demonstrated using a Scholander
respirometer which permitted measurements to be made only once per day due
to its lower sensitivity. Also, the Scholander respirometer is only able
to measure oxygen consumption but not carbon dioxide production. When the
experiment was repeated using the Columbus Instruments' RESPIROMETER,
measurements were made 6 times per day rather than once per day. If you
need further information about the use of RESPIROMETER, please send e-mail
or fax to the following address.
Internet: 75144,2413 at Compuserve.com