The Wolf Point herald., 1924-07-10
BY j. o. TRETSVEN,
Dairy Specialist, Montana State Col
lege Extension Service.


w YHEN considering the erection
wv of new dairy barn or the re
modelling of the old one, tn,
matter of ventilation should be one
of the important considerations. Too
often the ventilation problem is ig
nored or left to chance because Of
the small expense of installing a ven
tilating system. Such economy usu.
ally results in far greater losses lat
er on.
When it is considered that for
proper health, each COW should have
$500 cubic feet of air per hour, and
that because of a lack of fresh air
and proper ventilation the health of
the stock may be impaired with the
accompanying dangers to humans,
inferior and reduced production re-
suits, barns and equipment deterior-
ate more rapidly and the menace of
fire is greater, the Importance of VEN
t1latlon takes on a new light.
Some consider that when enough
cracks and knot holes are left in the
sides of the new barn, the ventila-
tion problem has been simply taken
care of. Others think the opening
of window or door provides suffi-
cient ventilation to meet the require
ments. These, of course, are com
mon notions but have no foundation
in fact. Such ventilation often does
more harm than good.
A recent bulletin by the United
States Department of Agriculture
takes up the real purposes of ventil-
alton and well brings out the bene-
fits and protection provided by a
good ventilating system.
Ventilation in a barn is the pro-
cess and practice of keeping a barn
supplied with proper air for breath
ing. tits a continuous process and |
is accomplished by diluting theair in |
the barn with fresh air in such guam
titles as to maintain the desired de-
gree of purity. The foul air in the
barn escapes as the fresh air enters.
To maintain health, fresh air is
as essential for COWS, horses, hogs
and other stock as for human be-
ngs; ventilation in barn and other
buildings in which stock are kept,
S just as necessary as health meas Ii
Ire, as in homes, schools, factories
ind other buildings in which human
)eings live orwork in more or less
lose quarters.
The need for ventilation of COW
stables is consequence of the in
creased demand for clean, wholesome
milk at low cost of production which
las made it necessary that each COW
hall produce as much milk as pos
ible. In order to increase produc- {
ion breeders have developed the I
ligh producing cowand greater {
winter production of milk has been
ought. Large winter production re- t
Iu1res that tightly built shelters for /
ows be provided, particularly in the f
older sections of the country. Tight e
Y constructed barns are apt to be
amp unless ventilation is provided, v
nd the stabling of animals in dark, t
oorly ventilated, damp barns af- a
ects their health and helps to spread r
tuberculosis among the stock when v
yer the germs are present. Clean, t.
rholesome milk can be had only from |,
ealthy cows. Fl
"a good ventilating system pro- 7
erly installed and operated, will: G.
u supply without darft the abun-
ance of fresh air necessary to the b
ealth and comfort of the cows; (2) il
lake possible control of barn temper b
ture; (3) preserve the building and b
eed stuffs from mold and rot due to D
moisture and make spon- O
aneous combustion less likely; (4) r
rovide a measure of disease preven- %
on and control.
"a dairy COW breathes approx ii
lately 116 feet of air per hour, or Il
lore than 2Opounds per day. The s.
&