Pond Boss Forums INTRO Questions & Observations Rate of digestion relative to temperature.

Another good way to obtain contents of fish stomachs is various methods or types of flushing.
http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1054&context=ncfwrustaff

Gastric lavage
http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1054&context=ncfwrustaff

The lavage technique and diagram
http://www.nativefishlab.net/library/textpdf/13644.pdf

Foster, J. R. 1977. Pulsed gastric lavage: an efficient
method of removing the stomach contents of live
fish. Progressive Fish-Culturist 39:166�169.