Document 2q5b3r89V5Dy0VwL0qRkbw10p

KOTES OB CESTAI DATA AVAILABLE IH KBTTBRHQ lABOKATOKT EXPERIENCE Lead Content of Milk from Cam Fed on Contaminated Forage* Pate Zdentlf1cation Lead in Mg. per liter Remarks (P .P .18.) 5-7-64 First 0.016 Prior to being fed cm contaminated forage 5-15-64 Second 0,020 End of first week of feeding 5-22-64 Third 0.085 End of second week of feeding 5-29-64 Fourth & Final 0.075 find of third week of feeding Silage as fed contained 44,S 0 $. Pb per kg. (p.p.m.) Lead Content of Feed Responsible for Poisoning Dairy C o w Article Lead Content in Mg. per kg, (p.p.a.) Ground silage 66.8 Ground C o m 20.0 C o m Silage 23.90 Control Sample of C o m Silage 0.50 from farm outside affected area Forage Crops in Fresh Green Stated Sample A 0.029 Sample B 0.78 Value should be multiplied by factor of Sample C 2.22 4, to arrive at concentration of lead la Sample S 0.69 partially dried product aa fed to cows. Sample 0.62 Feed Crops from Other Farsas Com 1.20 Com 0.62 Sudan Sorghum hybrid 1.11 Alfalfa 0.44 Lead Content of Tissues of Two Severely Poisoned Dairy Cows* Vissi Xead in iis. per 100 grams of fresh tissue Bang# of "Konaal" Values Liver 81 1.61 82 1,11 0.1 - 0.2 Kidney 81 6.14 82 2.90 0.05 - 0.S Only tissues available for checking results of previous analyses by others. Lead Content of Tissues of Cow 2SAEP3X09* (From Same Herd) Tissue lead in Ms. per 100 Grams Bone 1.21 Elevated only by 25 to 50 per cent Liver 0.40 Elevated to about twice ''normal" value Kidney 1.10 Elevated 8 to 10 fold Muscle 0.01 Essentially normal (always low) Brain 0.12 Elevated 50 per cent or perhaps more Considering the relatively low value in bone, it is evident that the exposure of this cow was brief. / < OOCS L48 X 7500