NCBI ROFL: My research involves watching pigs poop out balloons…hey, why are you running away?

By ncbi rofl | February 8, 2012 7:00 pm

The effect of feeding on defecation behaviour in pigs.

“The effect of eating on defecation behaviour was investigated in four 20-30 kg pigs. Rectal distention stimulation was performed pre- and postprandially at 10 cm from the anus with a 5 cm latex balloon. Volume was increased in steps of 10 ml up to 200 ml of air or until balloon defecation. Dependent measures were volume, rectal pressure, determined with a solid state pressure transducer inside the balloon probe, rectal compliance, and an index of distention induced contractile activity. The volume and pressure required to elicit defecation was significantly lower after feeding (p less than 0.01). Distention induced contractile activity was significantly increased near defecation threshold, but pre- and postprandial conditions were not different. There was no difference in rectal compliance pre- and postprandially. These results suggest that eating lowers defecation threshold in terms of distention volume and rectal pressure, and that these changes are not dependent on altered rectal compliance or changes in distention induced motor activity.”

Photo: flickr/ArtBrom

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  • Michael

    The volume and pressure required to elicit defecation was significantly lower after feeding.

    That’s truly a candidate for “No sh*t, Sherlock!”. Oh, wait …

    • renke

      > No sh*t, Sherlock!
      shot? shut? shet?

      I don’t get it….

  • H Davis79

    You know they are doing this research just to impress women.


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NCBI ROFL is the brainchild of two Molecular and Cell Biology graduate students at UC Berkeley and features real research articles from the PubMed database (which is housed by the National Center for Biotechnology information, aka NCBI) that they find amusing (ROFL is a commonly-used internet acronym for "rolling on the floor, laughing"). Follow us on twitter: @ncbirofl


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