Table 5. Total Americium-241 Present in 250 g of Rumen Contents (Radioactivity) Trial-6 11/05/74 Trial-7 01/19/75 Trial-8 Trial-9* 01/29/75 03/12/75 Trial-10_ Trial-11 416.1 4.8 16.7 8.3 396.1 6.9 946.5 6.6 01/21/75 05/29/75 Abomasum,End pH 3 Americium-241 (pCi) 239pu/24 lam 1146.5 6.6 75.6 6.3 Duodenum, pH4.5 1388.3 5.0. 89.0 6.7 235.8 7.0 53.3 6.8 407.3 7.0 703.5 7.2 1629.8 158.0 241.7 19.2 319.0 750.4 1106.8 6.2 350.0 0.55 249.4 8.1 21.9 6.0 391.1 6.9 954.8 7.2 6cT Americium-241 (pCi) 239pu/2*tam Jejunum, pH 6 Bile & Enzymes, 2 hrs Americium-241 (pCi) 239py/2t lam 4.4 1.7 6.1 6.7 4.7 6.4 Lower Intestine, pH 7.5 Bile & Enzymes, 2 hrs Americium-241 (pCi) 239py/24 lam *Outer enclosure.