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Mad
Cow Disease
First, the good news: Milk and milk products are considered by
scientific authorities to be safe.
What
is Mad Cow Disease?
Bovine spongiform encephalopathy (BSE) is a chronic, degenerative disease
affecting the nervous system of cattle. It is always fatal. Since the disease
was first diagnosed in Great Britain in 1986, there have been more than 178,000
cases worldwide. Over 95% of all BSE cases have occurred in the United Kingdom,
although the disease has been found in countries throughout Europe. According to
the United States Department of Agriculture (USDA) the first confirmed case of
BSE in the United States BSE was found in Washington State in December of 2003.
How
Does BSE Spread?
Epidemiological research suggests that BSE is spread from cattle to cattle
through animal feed containing BSE contaminated meat and bone meal. There is
evidence that it can also be spread maternally from cow to calf in vitro. There
is no test to diagnose the disease in a live animal. Diagnosis is made by
examining the brain tissue of a dead animal.
Is it
contagious? Can I catch it?
BSE is a part of the family of diseases known as transmissible spongiform
encephalopathies (TSEs). TSEs are characterized by sponge like holes in the
brain. Other known TSEs include scrapie (which affects sheep and goats),
transmissible mink encephalopathy, chronic wasting disease of deer and elk, and
in humans, kuru and creutzfeldt-jakob disease (CJD).
In 1996, after studying the
deaths of ten people with CJD, a UK Spongiform Encephalopathy committee
announced the identification of a new variant form of CJD (vCJD). Research now
suggests that BSE is highly likely to be the cause of this new form of CJD. Put
another way, it is believed that by consuming the meat or bone from BSE infected
cattle, humans could contract vCJD.
Can I
get vCJD or BSE from yogurt and other dairy products?
According to the United States Center for Disease Control (CDC), http://www.cdc.gov/travel/diseases/madcow.htm
studies have identified the presence of BSE in the brain, spinal cord, retina,
dorsal root ganglia (nervous tissue located near the backbone), distal ileum,
and bone marrow of cattle experimentally infected with BSE. The CDC states:
To reduce the possible
current risk of acquiring vCJD from food, travelers to Europe should be
advised to consider either 1) avoiding beef and beef products altogether or 2)
selecting beef or beef products, such as solid pieces of meat (versus beef
products such as burgers and sausages), that might have a reduced opportunity
for contamination with tissues that might harbor the BSE agent. Milk and milk
products from cows are not believed to pose any risk for transmitting the BSE
agent.
The
World Health Organization also considers milk and milk products to be safe.
Other cattle derived products that are currently being reviewed include gelatin,
collagen (used in cosmetics), and vaccines made from cattle blood. The World
Health Organization considers tallow and gelatin safe if prepared by a
manufacturing process that has been shown experimentally to inactivate the
transmissible agent.
What’s
being done to prevent BSE in the US?
In 1989 the USDA Animal and Plant Health Inspection Service (APHIS)
imposed import restrictions on live ruminants (cud chewing animals such as
cattle, sheep, goats) and most ruminant products from the UK and other countries
where BSE was diagnosed. In 1997 the US Food and Drug Administration issued a
rule mandating the prohibition of ruminant feed containing animal protein
derived from mammalian tissues. Although the rule has been in effect since 1997,
it was reported by the NY
Times in January of 2001 hat some companies involved in manufacturing animal
feed are not complying with regulations meant to prevent the emergence and
spread of mad cow disease in the United States.
Cows that supply our organic milk are raised on organic
farms that have been certified to meet strict organic
standards. Organic livestock standards mandate that 100% of the feed is
organically raised, prohibit the use of antibiotics and hormones, and require
access to outdoors. Another advantage of organic is the audit trail required
under organic certification. Organic standards mandate a paper trail documenting
all feeds given to organically grown livestock, as well as the management
practices for the land they are raised on. Traceability has been a key
aspect of organic since the beginning.
The FDA has prohibited any dairy farmer—organic or
non-organic—in the US from feeding ruminants animal protein derived from
ruminants. In general our farmers feed their cows hay and chopped fermented hay
(haylage), corn, corn silage (chopped and fermented whole corn plants), soy and
soy by-products and grains.
The rapid development of the disease in
the UK was a result of a bad policy that allowed the feeding of rendered
ruminants to ruminants. In addition, many modern day farming systems create an
environment that weakens cows and creates a breeding ground for disease. We
believe that the small family farm in comparison to the large, concentrated
animal farming operation (CAFO) is generally better for several reasons:
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Concentrating animals in
a confined area concentrates the animal waste products posing an
environmental and health threat to nearby communities. In 1995 a North
Carolina spill of over 30 million gallons of animal waste from a
concentrated hog operation contaminated rivers killing millions of fish and
causing a human health danger.
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Animals receive personal
attention and live longer lives under less stress.
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More small farms rather
than fewer large ones can be better for rural communities, providing a more
diverse employer base with more opportunities for families to maintain
business and land ownership.
Brian Halweil and Dani
Nierenberg of the Washington, D.C. based Worldwatch Institute wrote in the March
2001 Green
Business News:
The modern animal farm
not only allows, but also paves the way for the outbreak of disease. We cram
thousands of genetically uniform animals into unhygienic warehouses,
generating a virtual frat party for microbes. We recycle animal manure and
slaughterhouse waste as feed. We process meat at breakneck speed in the
presence of blood, feces, and other contagion… The irony is that this model
of food production – designed to put economic gain ahead of good animal
health- doesn’t make any economic sense in the long term. Mad cow alone has
already cost Britain more than $1 billion and sapped $5.6 million from EU
coffers.
We support a smaller scale,
sustainable agricultural system that is ecologically sound, economically viable,
socially just and humane. We see organic as the path to this sustainable system
and are working hard to increase our use of organic milk and other organically
grown ingredients.
In the meantime, we will
continue to watch national and global developments of BSE and keep you posted.
For more information on BSE:
Organic Valley http://organicvalley.com/faq/search.php?search=Mad+Cow
Organic Consumers Association
http://organicconsumers.org/madcow.htm
Why ORGANIC BEEF is a smart
choice http://www.ota.com/organic/foodsafety/OrganicBeef.html
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