TABLE 1.--Summary of results of feeding various levels of insecticides to cattle and sheep 
for various times, and the maximum fat residues resulting from such feeding. All feed- 
ings were harmless to the health of the animals. 
Levels fed in Period 
P p.m. Weeks P.p.m. 
Aldrin Cattle 5 16 8 
10 16 49 
25 8 78 
Sheep 3) 16 7, 
10 16 Bye) 
25 8 78 
BHC, all isomers Cattle 100 16 250 
Sheep 100 16 119 
BHC, Lindane Cattle 1 2 1.5 
10 12 8 
100 12 98 
Chlordane Cattle 10 16 13 
Sheep 10 16 16 
Cattle 25 8 18 
Sheep 25 8 12 
DDT Cattle 10 4 6.8 
Sheep 10 4 S\aal 
Cattle 25 16 40 
Sheep 25 lg 16 5) 
Dieldrin Cattle il 16 DED 
Sheep al 16 2.9 
Cattle 205) 16 14.3 
Sheep Bn) 16 ORD 
Cattle 10 16 44 
Sheep 10 16 48 
Cattle 25 8 75 
Sheep 25 8 69 
Endrin Cattle Pie 16 1.6 
Sheep Boe 16 By 
Cattle 5.0 16 2.4 
Sheep 5.0 16 202 
Heptachlor Cattle TO 8 4 
Cattle Bee) 16 lea 
Sheep ois) 16 Zreilk 
Cattle 10 16 VoD 
Sheep 10 16 g.0 
Cattle 60 16 62 
Methoxychlor Cattle 25 16 @) 
Sheep JD) 16 O 
Toxaphene Cattle 10 8 less than 4 
Cattle Po) 16 12 
Sheep 25 16 8 
Cattle 100 16 38 
Sheep 100 16 22) 
