The United States Department of Agriculture (
USDA)
confirmed on April 24 America's fourth case of bovine spongiform
encephalopathy (BSE) in a dairy cow from central California. According
to the USDA, the carcass of the animal is being held under state
authority at a rendering facility in California and will be destroyed.
Rendering, which dates to the early Egyptians, is a polite term used
to describe the business of disposing of dead animals. According to the
National Renderers Association, more than 205 rendering facilities in the United States and Canada pick up
59 billion
pounds of inedible animal by-products annually from slaughterhouses,
restaurants, farms, even shelters, which are then steam cooked. Products
from the resulting brew is used as lubricants, polish, wax, as well as
lipstick, gel capsules, and soap. They are also used in livestock feed
and animal food, possibly resulting in cannibalistic practices. The U.S.
Environmental Protection Agency details the rendering process in this
document.
|
Courtesy: sxc.hu |
Bovine spongiform encephalopathy has been linked to tainted livestock
feed containing brain and spinal matter. Humans eating infected beef can
develop vCJD (Variant Creutzfeldt-Jakob Disease), a fatal brain wasting
disease with unusually long incubation periods measured in years.
According to the
CDC, the median age of age for vCJD patients was 28 years.
As of October 26, 2009, a regulation issued by FDA in April 2009 came
into effect establishing an enhanced BSE-related feed ban in the United
States. This enhanced ban will further harmonize BSE feed control
measures in the U.S. with those in Canada (see below). In addition, FDA
continues to enforce its important 1997 mammalian-to-ruminant feed ban
through its BSE inspection and BSE feed testing programs.
FDA
has published two rules to protect animals and consumers against BSE by
prohibiting the use of most mammalian protein in the manufacture of
animals feeds given to ruminant animals (no cannibalism) and by removing
specified risk materials (SRM), primarily brain and spinal tissue of
aged animals, from all animal feed. These rules were published in 1997
and 2008. Canada has similar rules for safeguarding against BSE.
The
press release
from USDA stated "The United States has had longstanding interlocking
safeguards to protect human and animal health against BSE. For public
health, these measures include the USDA ban on specified risk materials,
or SRMs, from the food supply. SRMs are parts of the animal that are
most likely to contain the BSE agent if it is present in an animal. USDA
also bans all non-ambulatory (sometimes called "downer") cattle from
entering the human food chain. For animal health, the Food and Drug
Administration (FDA) ban on ruminant material in cattle feed prevents
the spread of the disease in the cattle herd."
Samples from diseased cow were tested at USDA's National Veterinary
Services Laboratories in Ames, Iowa. Results confirmed the cow was
positive for atypical BSE, a very rare form of the disease not generally
associated with an animal consuming infected feed and happens spontaneously. The laboratory
results are being shared with international animal health reference
laboratories in Canada and England, which will review our confirmation
of this form of the disease. USDA will also be conducting a
comprehensive epidemiological BSE investigation in conjunction with
California animal and public health officials and the FDA.
Since
vCJD is fatal in humans, cases of BSE often lead to panic among
consumers and beef export bans. As a result, the USDA reiterated that
the BSE infected animal was never presented for slaughter for human
consumption. Additionally, USDA reminded consumers that cow milk does
not transmit BSE.
Related news:
First Person: Managing the Risk and Cost of Food Borne Illnesses in a World of Food Recalls
Also published on Yahoo Voices. Author retains copyright.