tionship of hay storage to feed al- 

 leys. 



1. In the first pattern (Fig. 20) 

 the central driveway through the 

 flcor of the mow has been retained. 

 This leaves floor space available in 

 the middle of the barn. Hay is 

 thrown from the top of the bents to 

 the mow floor and then is pushed 

 along the mow floor to one or more 

 trap doors. If the cattle face in in 

 the stable below, and if several hay 

 chutes or doors are available, the 

 movement of hay is fairly direct and 

 convenient. There is a waste of stor- 

 age space. 



HAY BENTS 



Q -4- Trap Doors -^Q 



Driveway 



HAY BENTS 



Fig. 20. This mow floor plan illus- 

 trates one type of hay stor- 

 age location. The hay is 

 thrown to the driveway 

 floor and then through trap 

 doors to the feeding floor 

 below. It is fairly conveni- 

 ent but wasteful of space. 



2. In the second pattern (Fig. 21) 

 all or most of the driveway has been 

 discarded and the entire floor is avail- 

 able for hay storage. Most of the 

 new barns are of this type; the cows 

 on ground level and the hay stored 

 the full width of the barn overhead. 

 Most of the barns are equipped with 

 hay chutes which extend to the top 

 of the hay. But in some barns a few 

 feet of the original driveway has been 

 retained and hay is thrown from the 

 top of the adjacent mows to the drive- 

 way floor and then through the trap 

 door to the feed alley below. As the 

 barn feeding season advances and ad- 

 ditional bents are fed out, more and 

 more mow floor space and additional 

 trap doors are available. When hay 

 chutes have been installed the hay is 

 fed out from the top of the mow by 

 throwing forkfuls through the chute 



to the feed alley below. In this case, 

 if several chutes are available, hay is 

 not moved very far horizontally at 

 any time. 



3. In the third case (Fig. 23) the 

 cow stable is to one side and not un- 

 der the hay storage. Usually a one- 

 story building 34 feet wide extends 

 out at right angles to the axis of the 

 old barn. Hay stored at one end of 

 the mow must be moved the full 

 length and half the width of the barn 

 to transfer it to one end of the feed- 

 ing floor. Hay must be moved a con- 

 siderable distance both in the mow 

 and in the feed alley. The cow stable 

 may be on a lower level than the mow 

 floor or it may be on the same level.' 



4. The fourth pattern (Fig. 22) 

 is similar to the third except that 

 about half of the cow stable and half 

 of the cows are under the mow and 

 the distance that hay must be moved 

 would be only about half as far. 



Hay is moved horizontally only 

 small distances in the first two situa- 

 tions described. The hay is imme- 

 diately over the cows and can be 

 transferred to the stable floor below 

 either directly through long hay 

 chutes or by first pitching to the mow 

 floor and then through trap doors. 

 However, many of the hay chutes 



TRAP DOORS AS HAY CHUTES 



^Short Drivewoy 



D 



Fig. 21. This was originally the 

 same type as in Fig. 20. 

 Only one end of the drive- 

 way has been retained. 



were too small in barns of the Fig. 

 21 type and the driveway in the Fig. 

 20 type was sometimes clogged with 

 stored supplies and machinery, mak- 

 ing it difficult to transfer hay. In 

 one case, because of the blocked drive- 

 way the operator pitched hay from 

 bent one to bent two, from bent two 

 to the driveway and carried the hay 



27 



