I stuck a hard plastic pipe in the calf's  mouth,  then  slid a clear plastic hose through it and down the calves throat.  A lot of air,  sewer like gas, and  some manure like stuff came out the hose.

When I was done with that,   the calf burped and farted some, when walking around.

Should I do  try this again before bed?    Maybe try the oil stuff?

Thank you