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Yes. Since the original regulations that restricted feeding of ruminant materials to rumiants, blood and plasma proteins have been exempt. The United States Food and Drug Administration has NEVER banned the use of blood, plasma and fractions from being fed to ruminants. The Final Rule 21 CFR Part 589.2001 is available to view on the FDA web site at:
http://www.fda.gov/OHRMS/DOCKETS/98fr/FDA-2002-N-0031-nfr.pdf.
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Besides the source of plasma - there aren't any. Numerous studies have been conducted to evaluate the quality of bovine plasma to porcine plasma. The results have not shown any significant difference in performance, quality, or bio-safety of the two products.
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