Table 4.
Average Percent of Labeled Sand Dose Retained by Four Cows Following
Oral Administration
Days After
Dosing
20 um
Average Percent Retained + One Standard Deviation
80 um
200 um
450 um
1
75
£8
97
+
1
99
+
1
99
+
0.4
2
23
+7
80
+11
90
+
7
93
+
3
3
8
+6
60
+17 —
69
+ 24
76
+18
4
3
+4
46
+ 20
54
+ 32
62
+ 29
5
0.8 + 0.8
34
+ 20
43
+ 33
53
+ 32
6
0.1 + 0.2
24
+ 20
34
+ 33
4&4
+ 36
7
ND
17
+ 16
25
+ 24
34
+ 30
8*
ND
9
+
9
15
+ 15
20
+17
9
ND
6
+
5
9
+ 10
14
+ 12
10
ND
4
+
3
7
+
8
10
+
8
11
ND
2
+
2
5
+
6
6
+
6
12
ND
1
+
1
3
+
3
4
+
4
13
ND
0.6 +
O.5
1
+
2
3
+
3
14
ND
0.2 +
0.2
0.5 +
0.9
2
+
3
15
ND
<O0.1
0.2 +
0.3
1
+
2
16
ND
<0.1
*Estimates from grab samples were made after day 7.
ND--not detected.
.
157
<O.1
<0.1