Show house insulation tests at nebraska agricultural col leges indicate that at the usual prices insulation for or a 20 by 20 foot poultry house will cost about SW A or about 40 c cents en ts per bird housed if this cost Is spread over the life of tie the house it amounts to about two eggs per hen per winter it Is known by experience that quick changes in temperature in winter may throw a hock flock out of production for several days or even tor for the rest of the winter just when aas prices are the highest |