NR ASBL
AU anonym
TI FDA PROPOSES PROHIBITING SHEEP AND GOAT OFFAL IN RUMINANT FEED
QU VETNEWS, 08/31/1994
IA http://www.fda.gov/bbs/topics/VETNEWS/VET00051 (nicht mehr vorhanden, jetzt am ehesten: http://www.cfsan.fda.gov/~ear/RFEED.html)
VT
In the August 29, 1994, Federal Register, FDA proposed a rule to prohibit specified offal from adult (more than 12 months of age) sheep and goats for use in ruminant feed. FDA is proposing this action because the specified offal may contain the agent that causes scrapie, a transmissible spongiform encephalopathy (TSE) of sheep and goats. In the United Kingdom, scrapie has been epidemiologically associated with the occurrence of bovine spongiform encephalopathy (BSE), another TSE. BSE is a transmissible, slowly progressive, degenerative disease of the central nervous system of adult cattle. This disease has a prolonged incubation period in cattle (2 to 8 years) following oral exposure and is always fatal. Because FDA cannot positively rule out a direct association between scrapie, BSE, and human TSEs, FDA is proposing this action to protect the health of animals and humans.
Processed tissues from sheep and goats are used as ingredients in animal feeds. These products are derived from slaughter byproducts (slaughter inedibles) and dead, dying, diseased, and disabled (4-D) animals. These slaughter inedibles and 4-D animals include certain offal that are the subject of this proposed rule. Specified offal is defined in this proposal as any tissue from the brain, spinal cord, spleen, thymus, tonsil, lymph nodes, or intestines (duodenum to anus, inclusive) of sheep or goats, or any processed product that is reasonably expected to contain specified offal. Products which are likely to contain specified offal include dried meat solubles, glandular meal, meat meal, meat and bone meal, animal byproduct meal, meat meal tankage, animal digest, bone ash, bone charcoal, spent bone charcoal, cooked bone meal, and bone phosphate.
Generally, feed ingredients from slaughter byproducts and 4-D animals are processed by rendering. FDA has no evidence of a human or animal health TSE hazard or any other health hazard associated with the feeding of adequately rendered ingredients to animals. Processed animal byproducts have a long history of safe use in the United States as a sorce of nutrients for animals.
However, the agent responsible for the transmission of BSE and related TSE diseases is not well characterized. BSE is believed to be cattle variant of the sheep scrapie agent. Epidemiological evidence from the United Kingdom indicates that feeding calves products containing feed ingredients products containing feed ingredients processed from sheep infected with scrapie may have caused BSE in cattle. This is the first reported instance in which it is suspected that a disease agent survived rendering.
The occurrence of BSE in cattle has not been shown to cause a TSE disease in humans. On the other hand, the possibility of a causal relationship has not been disproved. BSE has not been diagnosed in cattle in the United States. However, sheep scrapie is present in the U.S. Therefore, FDA believes that the potential implications for human as well as animal health require regulatory action to minimize the possibility for the introduction of the disease into U.S. cattle.
Additional information on the proposal is included in the Federal Register. Copies of the Federal Register proposal are available from the Communications and Education Branch, HFV-12, Center for Veterinary Medicine, Food and Drug Administration, 7500 Standish Place, Rockville, MD 20855. Please send two self-addressed adhesive labels to assist in processing your requests.
PO Internet
SP englisch
OR Prion-Krankheiten 9