18
—Lancaster Farming, Saturday. March 4, 1972
New Acids
Preservation and storage of
high moisture corn with
naturally-occurring acetic and
propionic acids is a new and
efficient method of feeding
livestock, scientists report at
Pennsylvania State University.
Until now, artificial drying or
storage in air-tight containers
has been essential to avoid
spoilage in shelled and ground
corn averaging 25 per cent
moisture content.
Such preservation with mix
tures of acetic and propionic
acids increases the feed ef
ficiency of corn fed to beef cattle
and sheep, according to Dr. L. L.
Wilson and Dr. T. A. Long of the
Department of Animal Science at
Penn State.
In studies just completed, they
also found that the cost per
bushel of treating the grain is
similar, or slightly higher, than
the cost of drying field-shelled
corn. The new process sprays
shelled ground corn with mix-
iheOldlymM.
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m.
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IMANO
SORGHUM
Pioneer is a brand name; numbers
Identify varieties. ® Registered trade
mark of Pioneer Hl-Bred International,
Give Corn Storage Alternative, Better Feed Valne
hires containing about 1.6 per
cent, by weight, or acetic and
propionic acid.
In the Penn State ex
periments, acid-treated corn
was placed on a barn floor. There
was no spoilage observed in
either acid-treated corn or
sorghum.
Such grains are normally
harvested when the moisture
content is about 25 per cent and
then are dried to 14 per cent
moisture. Some air-tight storage
is used to prevent spoilage of
such high-moisture grains.
Metabolism studies with lambs
found that digestibility of acid
treated, high-moisture corn was
1972
FEBRUARY SAVE 6 PER CENT
MARCH SAVE 5 PER CENT
SEE A BROCK GRAIN DRYING SYSTEM IN OPERATION ON OUR OWN FARM.
□ E. M. HERR EQUIPMENT, INC.
not significantly different than
digestibility of dried shelled corn.
More protein was digested and
retained in the lambs’ bodies
when the animals were fed acid
treated, high-moisture corn than
when fed ensiled, high-moisture
corn without acid. The ration
contained 30 per cent ground hay
and 70 per cent ground corn.
In a study comparing steers fed
the dried shelled corn versus the
acid-treated, high-moisture corn,
feed efficiency was increased
nearly five percent with acid
treatment. The cattle ate about
two per cent more acid-treated
grain dry matter than the dried
shelled corn.
ATTENTION GRAIN GROWERS
DUAL PURPOSE GRAIN BINS
SPECIAL EARLY ORDER DISCOUNT
SAVE BY TAKING DELIVERY NOW AND
NOT PAYING BEFORE OCTOBER 1, 1972
FOR DELIVERY IN THE FOLLOWING MONTHS
R. D. 1, Willow Street
BROCK
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FOR GRAIN STORAGE AND DRYING
48 MODELS
18'TO 40 FOOT DIAMETER BINS
CAPACITY FROM 2200 TO 40000 BUSHELS
WE SELL, SERVICE AND INSTALL
The steer experiments in
dicated that acid-treated, high
moisture corn can produce
slightly greater weight gains and
slightly better feed efficiency
than the dried shelled corn.
Average daily gains of the steer
group fed acid-treated, high
moisture corn were 2.59 pounds
per head per day, compared with
2.42 pounds per head per day for
the steers fed-dried shelled corn.
Treated corn was also tested in
poultry rations by Dr. R. M.
Leach and Dr. 0. D. Keene of the
Department of Poultry Science.
While there was no effect on
growth rate, the rations con-
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APRIL
MAY
JUNE
taining acid-treated grain
showed a five per cent loss in feed
efficiency. This decreased feed
efficiency may have resulted
from moisture content of the
grain rather than from acid
treatment, the scientists point
out.
Certain precautions are
necessary in handling and storing
acid treated corn. The acids,
particularly acetic, are
corrosive. Metal or concrete
storage facilities should be
protected with plastic linings.
Combinations of acetic and
propionic acids are available
commercially, and an applicator
is also on the market.
SAVE 4 PER CEI
SAVE 3 PER CENT
SAVE 2 PER CENT
717-464-3321