With the successful. Methods A retrospective analysis of all bioprosthetic MVRs with concomitant procedures at a single tertiary referral institution from January 2005 to December 2008 was conducted. Cow Ox Anatomy Poster Wall Chart 18 X 24 Etsy Large Animal Vet Anatomy Vet Medicine The present study showed that such an activity of BB gelatin was not exerted in a serum-free medium. . Yet this is a unique property in some specific applications. I emailed the Tammy Lowe who makes the product and she said the main reason they chose bovine thyroid over porcine is because they get their raw material from New Zealand and therefore can guarantee that it is GMO- and disease-free. The results of this investigation demonstrate that bovine heparin produces an equivalent anticoagulant activity as porcine heparin in the TEG ACT and TGA assay systems. Porcine valves tend to fail because of cusp tears and valve incompetence whereas bovin