Grain preserver raises efficiency
Propionic acid grain preserver can Increase feed ef
ficiency of high-moisture corn fed to beef cattle by as
much as three percent over rolled, field-dried corn and by
12.7 percent over untreated, ensiled, high-moisture corn.
These are the findings of large-scale feeding trials
conducted at the commercial feedlot of Roberts Cattle
Company, Lexington, Neb., by Nutrition Service
Associates, Inc., Belleville, 111., an independent
agricultural research and consulting firm.
The trials also showed a 3.6 percent daily weight gain
advantage for cattle fed acid-treated corn over those fed
dry, rolled corn and an 11.1 percent increase over the
ensiled, high-moisture corn.
Additionally, under the conditions of this study;
chemical grain preservation reduced shrinkage of high
moisture com by about 95 percent when compared to
untreated, ensiled, high-moisture com.
“We think the trials are significant,” reports Gordon
Reiners, one of the founders of Nutrition Service. “The
large number of cattle used in both trials and the uniform
results from one trial to the other indicate that we could
expect that these results would be typical.”
A total of 860 yearling and two-year-old cattle were
studied over full-length feeding periods under commercial
feedlot conditions.
Reiners points out Uiat the three percent improvement
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in feed efficiency of acid-treated com over dried com
would represent a substantial saving in feed cost.
“We get close-out sheets from 30 to 35 feedlots, and we
know Roberts is a top-notch operation,” he explains.
“Considering that Roberts is already producing per
formance results superior to many other feedlots, the
three percent feed efficiency really means something to
us."
James Roberts, who conducted the day-to-day aspects
of the trials at his 10,000-head feedlot, cites the 12.7 per
cent improvement in feed efficiency for propionic acid
treated com over ensiled, high-moisture com as the most
important result of the study.
“I think propionic acid proved its worth,” Roberts
states. “Any high-moisture com we put up in 1975 will be
treated with acid.”
On a yearly basis, Roberts buys and feeds roughly a
million bushels of com. For the past four or five years,
50,000 to 100,000 bushels of the total have been high
moisture com, ensiled in concrete bunkers.
In the long run, Roberts believes that propionic acid will
prove to be of even greater advantage to the farmer
feeder. “He can get all the livestock performance ad
vantages that the feedlot can, plus all sorts of harvesting
and storage benefits.”
FORT COLLINS, COLO. -
Cottonseed hulls a by
product of cotton-fabric
manufacturing are a good
source of roughage for
winter feeding of cattle, says
Dr. Robert R. Oltjen, a
nutritionist with the U.S.
Department of Agriculture
(USDA).
Speaking before the an
nual meeting of the
American Society of Animal
Science, on July 28, Oltjen
described experiments he
and his colleagues conducted
at the USDA’s Agricultural
Research Center, Beltsville,
Md.
IVe
Have
It!
Cottonseed hulls make
good roughage
Scientists at the Center fed
steers six different diets
containing various com
binations of biuret or urea as
the non-protein nitrogen
(NPN) sources, plus either
fish meal or soybean meal.
Cattle on all six diets were
fed cottonseed hulls free
choice as the roughage
source. Two additional
groups of cattle were fed
control diets for comparison.
All cattle received trace
minerals and were given
vitamin injections at the
start of the trials and again
60 days later.
When cattle were fed only
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Lancaster Farming. Saturday, August 9,1975
Area nutritionists
attend conference
Mary L. Bryant, Alice
Harris, Jean London and
Blanche Bowers, Nutrition
Aides in Chester County,
were four of 250 persons
attending the Expanded
Nutrition Education
Program Conference, July 7-
9, at the University Park
Campus of The Penn
sylvania State University.
“ENEP - Progress and
Program Power” was the
theme for the conference for
aides and aide supervisors
working with the Expanded
Nutrition Education
Program (ENEP) in 59
counties in Pennsylvania.
ENEP, a program
designed to improve the
nutritional quality of diets in
families with limited
resources, has been a part of
biuret or urea as the NPN tonseed hulls provided the
source, they gained about cattle with 45 percent
one pound per day. However, digestible energy. Cattle ate
when 20 percent of the biuret about 3.1 percent of their
or urea nitrogen was weight in cottonseed hulls
replaced with nitrogen in tfe< P« r de-
form of fish meal or soybean
meal, cattle gained about 1.5 “These experiments in
pounds per day. Adding dicate that it is feasible for
additional salt to the diets cattlemen to winter their
and limiting the amount of steers on diets containing
soybean or fish meal en- cottonseed hulls as the
couraged the cattle to eat the roughage source plus NPN
cottonseed hulls. The mineral supplements.”
scientists found that cot- Oltjen said.
the Cooperative Extension
Service in Pennsylvania
since 19(9.
Speakers at the conference
included faculty from the
College of Human
Development at Penn State,
Extension specialists and
agents and the United States
Department of Agriculture.
At a banquet concluding
conference activities, 28
ENEP aides and supervisors
received certificates
recognizing five years
service to Penn State for
work in the ENEP
educational program.
Marion Miles, Clearfield
County, received the state
para-professional award
given by the Pennsylvania
Association of Extension
Home Economists.
65