
At Willow Bend, West Virginia,
research leader Bill Clapham
and animal scientist Jim Neel
examine frost-stressed forage.
Forage systems are being
developed that extend the
grazing season for Appalachian
farmers.
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A major project is under way to design year-round grazing
systems for pasture-raised beef in the Appalachian Mountains and the
Southeast. More than 20 scientists are involved, including animal nutritionists
and behaviorists, meat scientists, agronomists, extension agents, veterinarians,
economists, plant physiologists, and soil scientists.
Although some U.S. farmers already raise grass-fed beef,
"Our ultimate goals are to extend the grazing season to year-round
and produce a consistently high-quality product," says James P.S.
Neel. He's an animal scientist at the ARS
Farming Systems Laboratory in Beaver, West Virginia. "A year-round
grazing season would ensure that fresh beef is available throughout
the year.
"This could also be done by having grass-fed herds
from north to south throughout the Appalachian region. That would take
advantage of southern winters, which are mild, and avoid the problems
of hot-weather pastures," Neel says.
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Animal scientist Jim Neel
uses ultrasound on finishing
steers at Willow Bend, West
Virginia, to estimate back
fat, rib eye area, and
intramuscular marbling, all
indicators of meat quality.
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The Appalachian area has mostly small family farms on
which calves are raised, typically on 50 to 500 acres of woods and pasture.
The land is generally too steep to plant crops, so grazing livestock
is common. But these farms have trouble competing with larger, highly
mechanized farms for the beef market. Research leader William M. Clapham
and others at the Beaver lab thought that these farms might do better
aiming for the grass-fed, "natural" beef niche, directly marketing
the beef to retail outlets and grocery suppliers.
Cattle would graze Appalachian pastures intensively and
be rotated from paddock to paddock, just as grass-fed Argentine cattle
graze on the South American pampas. The Argentine niche product commands
a premium price in specialty food markets and is currently supplied
to American restaurants, supermarkets, and health food stores. Appalachian
beef could capture some of this market and increase the net income of
the farmers in the Appalchian area.
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At the Virginia Tech
Shenandoah Valley Agricultural
Research and Extension Center,
technician Marnie Caldwell (left)
and farm manager Dave Cuddy
record plate meter measurements,
which are used to estimate
forage yields in cow-calf
grazing paddocks.
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An Ambitious Joint Endeavor
This project is running the gamut of beef production and
marketingfrom birth to plate. It's broad in scope and is a collaboration
of four institutions in three states. Working with the ARS scientists
in Beaver are colleagues at the Virginia Polytechnic Institute and State
University (Virginia Tech), West Virginia University (WVU), and the
University of Georgia (UGA). This collaboration is unique because resources
are pooled, and each phase of the production stream is assigned to a
different institution. Virginia Tech is responsible for the cow/calf
operation from birth to weaning, preparing the cattle for wintering
or market, and conducting the feedlot control at Steele's Tavern, Virginia,
near Staunton. WVU is responsible for heifer development and the winter
stocker phase in Morgantown, West Virginia. ARS is responsible for pasture
finishing at Willow Bend, West Virginia, and overall project management.
UGA, in Athens, Georgia, is responsible for meat analysis and conducting
a taste panel.
The first 4 years of the project are for testing various
production techniques through three calf-to-market cycles. Then the
scientists will use on-farm pilot projects to transfer successful techniques
to farmers in the central Appalachian Mountain region. "Actually,"
says Neel, "we're giving out information to farmers as we go. Each
institution has designed different pasture systems to meet farmer goals
while minimizing possible financial harm from drought and other risks."
Researchers focus on the three aspects of pasture management
that farmers have control over: fertilizing and conditioning soil, establishing
and managing pastures, and grazing livestock. They're also testing varying
levels of fertilizers, measuring everything from grass growth to environmental
influence and checking the quality of both the soil and pasture grasses.
They assess the risks associated with different production strategies
and the likely level of consumer interest in the product.
Methods are surprisingly high-tech, like using near-infrared-reflectance
spectroscopy to determine pasture quality and ultrasound to measure
body composition changes from winter through the finishing period. Computer
models correlate various factorssuch as animal health, forage
quality, and weatherwith deviations from target gains. Clapham
modeled growth and development of several forages and designed the pasture
systems for WVU's farm in Willow Bend. This system took into account
environmental extremes and lowered risks associated with weather.
In spring 2001, the first calves were born at Willow Bend
and at the Steele's Tavern farm. They were weaned and then sent to Morgantown
in early December for winter-feeding treatments. In April 2002, half
the steers were sent to a feedlot in Steele's Tavern, while the rest
stayed in West Virginia to graze rotationally.
"Pasture-finished animals were fed only high-quality
forage at all timesas much as they wanted," says Neel. The
feedlot cattle were finished the traditional wayon corn, corn
silage, and protein/mineral supplements. All cattle go to market in
the fall of each project year. A rib section from each steer is sent
to UGA for meat-quality analysis.
"The meat is leaner than feedlot beef, having half
the saturated fat and more of the good types of fat. And it's been as
tender and tasty as feedlot beef," Clapham says.
Weight Gain and Meat Quality
Researchers are scrutinizing the effects of different
winter weight gains on meat quality to determine exactly how much gain
is really optimal. "That knowledge will not only help grass-fed-cattle
operations, but also feedlots," says Neel. "We believe that
a minimum three-quarter pound gain per day is needed, with steers weighing
650 to 700 pounds after winter. But there's little science to back up
those recommendations. Most are based on economics, not quality of the
end product."
"We're raising these animals for customers who prefer
that their beef come from cattle that consume the food they're uniquely
designed to eatgrass and forage plants," says Neel. "We
try to keep everything as natural as possible. By not finishing animals
in a feedlot, there are no feedlot-related illnesses, and so there's
less need for medications. We don't give the grass-fed cattle any antibiotics
unless they become sick."
Clapham supervises the entire project, which involves
a lot of organizing, scheduling, and managing. It is like a virtual
ARS location. "We're unique because we have so many disciplines
and locations all working as one team to bring each herd from birth
to market," he says.By Don
Comis, Agricultural Research Service Information Staff.
This research is part of Rangeland, Pasture, and Forages
(#205) and Food Animal Production (#101), two ARS National Programs
described on the World Wide Web at www.nps.ars.usda.gov.
William
M. Clapham and James P.S.
Neel are with the USDA-ARS Appalachian
Farming Systems Research Center, 1224 Airport Rd., Beaver, WV 25813-9423;
phone (304) 256-2972, fax (304) 256-2921.
"Grass-Fed Cattle Follow the Appalachian Trail" was
published in the February
2004 issue of Agricultural Research magazine.
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