BlO—Lancaster Farming, Saturday, June 7,1980
Dairy steers grow faster
UNIVERSITY PARK -
Weight gams of dairy steers
on pasture can be increased
by as much as 18 per cent
with the growth stimulant
Zeranol, reports Eail M.
Kesler, dairy scientist at
Penn State.
The finding could increase
a dairy farmer’s income
from sale of calves, Kesler
said. He and associates note
a trend toward greatly in
creased numbers of dairy
calves being raised as feeder
animals.'
The calf market for beef is
strong, he noted, with
consumer demand in
creasing for hamburger
type beef. In addition, a new
grading system for beef
reduces previous
downgrading based on an
animal’s conformation or
body type.
The growth stimulant is
sold as Ralgro. Earlier
studies showed this product
to be effective m increasing
the growth of beef cattle,
especially where the
animals were fed in
tensively.
Weight gams of implanted
steers averaged 1.7 pounds
per day in the Penn State
experiments, it was stated.
The range of weight gam
went from 1.2 to 1.9 pounds—
depending on rainfall and
quality of pasture.
Total gam per animal
during a pasture season
ranged from 142 to 367
pounds, depending on the
season and available grass.
“Steers on pasture require
very little attention and
labor,” Dr. Kesler com
mented. “Such grazing on
surplus pasture, above all, is
an excellent way to convert
grass to meat. There is, of
course, the ever present
possibility of losses due to
injury, infection, theft, and
the like.”
Animals initially weighing
about 1000 pounds responded
similarly to implants as did
500 pound calves. While body
weights improved
significantly with the un
plant, skeletal growth
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showed no difference bet
ween steers implanted with
Ralgro and steers not im
planted.
The experiments were
carried out over three
seasons, using mostly
Holstein steers. They were
grazed rotationally on
permanent pastures con
sisting of grasse, small
amounts of legumes, and
weeds The quality and
amount of pasture was
considered adequate to
excellent, Kesler said.
Implants stimulated
with kelp from implants
weight gams in four trials
conducted over three
grazing seasons. In three
trials the calves were 8 to 9
months old and averaged
about 530 pounds initially.
Half were implemented with
36 milligrams of Ralgro in
the right eat*.
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test group was reim
planted—one season after 89
days on trial and the next
season after 135 days on test.
Steers in the fourth trial
were 17 months old and
averaged 1040 pounds at the
start. They were implanted
once since the season was
only 118 days.
WU-^UDS
LEBANON &
BERKS CO
CLYDE C.
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Ephrata, PA 17522
717 738 1718
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DONALD SCHMIDT CLAPPER FARM
„ HMDT EQUIPMENT, INC.
RD 1 Box 258 A Alexandria, PA 16611
“”7 25™ TO 814 669 4465
SOUTH JERSEY
Care should be taken to be
certain the implarit is placed
properly in the ear, Kesler
cautioned. Follow directions
on the package or use the
services of a veterinarian.
U.S. farmers are expected
to plant nearly 79.5 million
acres of wheat this year.
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