Ottumwa tri-weekly courier. [volume] (Ottumwa, Iowa) 1903-1916, 1915-03-27


of this is outside of central space
feet high, with a capacity for $40 tons
of silage, and In the NOW there would
still be an excess. above the capacity
Of the rectangular barn, of $4,000
cubic feet, which would hold 66 tons
OF hay or as much as the entire NOV
of barn 32x36 feet with 20-foot
posts.
| The square feet of floor space in the
| round barn 90 feet in diameter and
rectangular barn 36x176N feet are the
same, but the cubical content of the
| former is more than that of the latter.
| The increase in the lumber bill is %
per cent in the plank frame and 5S
per cent in the mortise frame barn.
The round barn 80 feet in diam letter
contains 2S3 and the rectangular barn
1926 lineal feet of wall. The rec
tangular barn has, therefore. SO per
cent more lineal feet of outside barn
wall, requiring proportional in
crease in both paint and foundation,
The smaller surface on the outside
wall of the round barn requires less
paint and makes a proportional saw
in after years.
Owing to the fact that silo is a
necessity for the most economical
production Of milk, barn Is, not
complete for dairyman's purpose I'M
less it includes silO with capacity to
store sufficient silage for the herd. In
the case of the round barn, the silo
is most economically built inside, bu'
in the rectangular form would cause
a waste Of space, and for that reason
Is best erected outside. Therefore, in
comparing a round dairy barn with a
rectangular dairy barn, silo should be
included.
In figuring the cost Of materials in
the silos for the round and rectangu-
lar barns, the capacity needed in each
case was determined In the following
manner. Allowing 40 pounds of silage
per COW per day for winter months
and 25 pounds per COW per day for
months during the summer, would
require for 40 cows 220 tons; then
allowing one-eighth for waste would
make the silage requirement 24S tons.
AS the silo in the round barn 60 feet
in diameter Is So feet deep, 1t would
need to be only 16 feet in diameter to
hold $50 tons. This diameter Is suffl-
GENTLY small to allow summer feeding
without waste. To erect silo outside
of a barn. with sufficient stability to
stand we'll, the height above ground
should not be much more than twice
the diameter, and in order to avoid
waste for summer feeding, the diam
eter should not be greater than 1t
feet for a herd of 40 cows. In order
that a deep enough layer of silage can
be fed off each day during the summer to
avoid waste, it is evident that to store
$50 tons Of Stage outside the barn,
two sios would be required. One of
these should be 16 feet in diane ter
and So feet deep. holding 154 tons.
and the other 10 feet in diameter and
So feet deep, holding 102 tons, making
a total silo capacity of 256 tons.
AS the large barns hold 100 cows.
the same allowance of sllage per COW
for the season would require silo ca
pacity for $40 tons. AS the silo in the
round barn 90 feet in diameter would
be II feet deep, it would need 10 be
only 20 feet in diameter to hold $40
tons. To store $40 tons of silage in
silos butt outside the rectangular barn
would require two silos, each 20 feet
in diameter and "A feet deep.