DAIRY MEETING. 6/ 



The great problem in connection with the barn is to keep it warm 

 and ventilate it too. If you open a window fresh air will enter 

 but the temperature is lowered. The problem is to ventilate 

 your stable and keep it warm at the same time. In our latitude 

 we attempt to keep the stable warm by the heat which is given 

 off by the animal bodies. The animal warms a certain amount 

 of air just as a stove might warm a room and this warm air 

 must be utilized to keep the stable at the proper temperature. 

 The warm air is the lighter and rises to the ceiling while the; 

 cold air settles to the floor and with it the impurities. We want 

 to preserve the warm air and get rid of the foul. That means 

 that the air should be taken out near the bottom, and the air 

 which enters the stable be taken in near the ceiling. The King 

 system of ventilation is based upon this idea. The outlet flue 

 has an opening near the floor, and the air which is drawn out 

 is taken from near the bottom, which is the most impure and the 

 coldest. This air is taken up to the roof of the barn and passed 

 out through the cupola. I have another illustration where a 

 special shute is built about two feet square, of tight lumber, 

 with no cracks or places for the air to draw in. It should be 

 built as you would build a chimney, and should go up above the 

 peak of the barn, so that the air which blows across the top will 

 help to create suction, and aid the ventilation. This chimney 

 should be about two feet square for each twenty animals stabled. 

 The fresh air is taken in between the sheathing and siding near 

 the ground, and enters the stable near the ceiling. The idea is 

 to build it so that the draft will never go the other way. The 

 warm air will not fall. In this way you have a system that 

 ensures ventilation, and it has been very successful. I believe 

 this is a factor which the dairyman should consider when remod- 

 eling a barn or building a new one. Pure air is just as necessary 

 to the cow as food. She uses it in much the same way. We 

 ought also to provide sunlight for our cows. Our stables are 

 altogether too dark. Sunlight is a tonic, an invigorator, to the 

 human being, and certainly not less so to other animals. 



There are three ways in which we may say that exercise is 

 beneficial to animals. First, to give them fresh air; second, to 

 get them out into the sunlight ; and third, to stretch their mus- 

 cles. If the stable is properly ventilated and lighted the two 



