The Cecil Whig. [volume] (Elkton, Md.) 1841-current, 1906-07-28
Projecting Cows
From The Flies

ifGonl government Bullctln.
Oh the various remedies suggested
for relieving cows OF the ANNOYANCE
from flies, some have proved more or
less efficient In considering the use
oi such remedies it seems desirable,
therefore, to determine what effect. ii
any, flies have on milk production.
Several stations have published data
which bear ON this point
In 1900 W. l.. Carlyle. oi the Wis
cunSln Station, reported an experiment
in which seven COWS were practically
protected from flies. during the DAYTIME
by confinement i'll comfortable stable
provided with screen doors and several
other COWS confined in small lot
abundantly supplied with shade trees,
were constantly on the move fighting
flies. Both lots were pasturcd at night,
received the same kind and amount OF
grain feed, and also all the freshly cut
sorghum and green corn that they
would eat readily. The COWS confined
in the stable ate more OF the green
corn and sorghum, but lost more in
live weight during the four weeks OF
the experiment than the cows LETT out
OF doors. During the first two weeks of
the experiment the COWS in the stable
produced 56.7 pounds OF milk less than
during the two weeks previous, while
the cows not confined decreased only
4o.4 pounds. The corresponding de-
crease i'll the production OF fat was o.SG
pounds Tor the stabbed COWS and 2.I6
Tor the cows not stabbed.
The experiment cannot be accepted
as in any way conclusive. and yet it
would seem to indicate that while the
cows in the stable increased slightly
more in the percentage OF butter lat in
their milk than did the lot in the pad
dock. vet thcv ate more OF the iced and
icll off more in the amount OF milk
total lat production. 1t is easily seen.
however, that the increase in the total
amount OF butter lat given in the one
lot over the other in this experiment
was not sufficiently great to pay ior the
increased trouble and expense cntailcd
in the stabling OF the COWS during the
greater part ii every day.
In an experiment at the Oregon Sta
ton a proprietary remedy Tor rcpclIlng
flies was applied to Jour cows from July
. To- September 80. These COWS gain
ed POS pounds in weight during the per
;ud Of treatment. while Jour cows kept
under similar conditions. but not treat
ed, gained only PIP pounds. Two OF
the treated COWS showed shrinkagc
oi I2.h per cent in milk production dur
ing August and September n, COM
pared with their yields during the two
months preceding this period. Two
other COWS not treated showed a cor
responding >hrinkagt oi 22.4 per cent.
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