' FDA application for feeding MGA, Rumensin submitted
KALAMAZOO, Mich. -
Several years of research
has culminated in the recent
filing of a new animal drug
application with the FDA for
combination use of MGA and
Rumensin in feedlot heifers.
The application submitted
by TUCO, makers of MGA
and a Division of The Upjohn
Company, evaluated the
efficacy, feed stability,
tissue residue and safety of
using these two drugs in
combination.
The trials were conducted
by TUCO in cooperation with
Elanco Products Company,
manufacturers of Rumensin,
at Colorado State University
and West Texas State
University, and at feedlots in
J’wa, Michigan and Min
nesota.
According to FDA
requirements, efficacy
studies compared the per
formance of feedlot heifers
receiving the
MGA/Rumensin com- “But even more im
bmation to the performance pressive is that the value of
of heifers fed each feed your state’s exports since
additive singly. Research 1977 has increased $B9
shows that the combination million, and that’s a real
outperformed the single achievement,” Bergland
feeding of either drug. said.
BIG FARM POWER AND EQUIPMENT
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LEASE
A
STEIGER
The feed mixing research
evaluated the distribution of
each drug when mixed
together in complete feeds.
Stability data showed that
MGA and Rumensin were
Pa. ag exports seen at $45
HARRISBURG - U.S.
Secretary of Agriculture Bob
Bergland said at a Thursday
press conference the
agressive export policies of
the last four years will result
in total U.S. farm exports of
$4O billion this fiscal year
and that Pennsylvania will
share in that record with a
$45 million increase in the
value of its farm exports.
“Pennsylvania exports
are expected to total almost
$225 million compared to last
year’s $lBl million,”
Bergland said.
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stable in combination at a
high humidity level and at
high and low temperatures
typical of extremes under
feedlot conditions.
Tissue residue
“This year alone we have
committed over $22.1 million
to agricultural export
promotion, nearly double the
funds committed prior to
1977,” Bergland said.
He also pointed out seven
new world trade promotion
offices have been opened in
the last two years and that
new export credit programs
are being implemented.
“Total U.S. farm exports
this year will be 25 percent
greater than the record $32
billion exported last fiscal
year and represent a 75
percent growth since 1976.
This will generate an
agricultural trade surplus of
$22.5 billion this year.
“ The tremendous
domestic and foreign
demand prospects for our
- \£.«V*> ~* ,'.n^sSS*^"V
were used to establish the
proper drug withdrawal
time prior to slaughter to
assure consumers that
marketed meat is safe from
any drug contamination. The
safety and toxicity research
studies
farm products makes it
clear that American
agriculture will be moving
out of an era of over
production and surplus
disposal problems m *
Bees need fall management
UNIVERSITY PARK -
The best results for over
wintering bees occur when
bees are left on their sum
mer stands, accorduig to
Penn State’s revised
correspondence course on
Beekeeping. Other steps are
involved in fall management
to ensure that bees survive
cold weather, including
entrance cleats on apianes,
uniting weak colonies, and
requeemng colonies with old
queens.
incaster Farming, Saturday, Saptawbar 13,1980—A17
consisted of feeding heifers
overdoses of both drugs in
combination. Research
indicates that MGA and
Rumensin do not interact to
cause harmful side effects.
Approva of this com
million this year
an era where virtually tremendous record by
everything we produce will .. ..... . ..
find a market somewhere. “ other * blUlon “ d **
“Exports this next year
may exceed this year’s
Beekeepmg also gives
methods for successful
production of comb and
extracted honey, seasonal
management, rearing of
queens, control of bee
diseases, enemies of the ]
honeybee, and preparing v
comb or extracted honey for
the market.
This
correspondence course
offers direction on how to
begin a beekeeping en-
bination by the FDA would
allow feedlot operators to
obtain an improvement in
feedlot performance using
the two drugs together, while
suppressing heat in feedlot
heifers with MGA.
trade surplus should also
continue to expand,”
Bergland said.
terpnse or improve an
existing operation. Included
with the course are Penn
sylvania Cooperative Ex
tension Circulars on
Beekeeping and Diseases of
Bees and Their Control.
To order a copy of this
course, send $5.50 plus $l.OO
handling to BEEKEEPING,
Box 5000, University Park,
PA 16802. Make check
payable to Penn State.
10-lesson
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