Digestive Coefficients of Poultry Feeds, etc. 
7 
Test No. 5: White Plymouth Rock hen, leg band No. B148, weight 6 pounds. 
7 a. m. fed 10 gms. wheat middlings mixed with water and lampblack. 
4 p. m. fed 20 gms. middlings. 
7 p. m. fed 20 gms. middlings. 
9 p. m. first excreta voided. Excreta black. 
7 a. m. fourth day excreta after 72 hours normal. No lampblack. 
This test was run on a broody hen. First excreta voided in 14 hours and showed 
lampblack. Lampblack traces disappeared after 72 hours. 
Test No. 6: Single Comb White Leghorn hen, laying condition, leg band No. 34, 
weight 2.8 pounds. 
7 a. m. fed 20 gms. wheat middlings mixed with water and lampblack. 
10:30 a. m. first excreta voided. Excreta black. 
11:20 a. m. excreta voided, same color as above 
7 a. m. fourth day after 72 hours excreta normal. 
Excreta showed in three and one-half hours that food had passed the entire length 
of the intestinal tract. 
Test No. 7: Chick, leg band No. 32, weight 2 pounds. 
7 a. m. fed 10 gms. wheat middlings mixed with water and lampblack. 
10:50 a. m. first excreta voided. Excreta black 
7 a. m. fourth day after 72 hours excreta normal 
The indicator suggests that the food passed through this two-pound broiler chick 
in four hours. 
Test No. 8: Chick, leg band No. 36, weight 1.8 pounds. 
7 a. m. 20 gms. wheat middlings given mixed with water and lampblack. 
10:55 a. m. first excreta voided. Trace of lampblack. 
11:40 a. m. second excreta voided. Excreta black. 
7 a. m. fourth day after 72 hours excreta normal. 
In this case the excreta voided indicated that the lood had passed through the 
digestive tract in approximate’y four hours. 
Test No. 9: Buff Plymouth Rock hen, in laying condition, leg band No. 26 
weight 5.5 pounds. 
7 a. m. fed 20 gms. wheat middlings mixed with water and lampblack. 
10:00 a. m. first excreta voided. Excreta black. 
7 a. m. fourth day, excreta normal. 
The indicator showed that food had passed the entire digestive tract in three hours. 
An egg was laid first day of experiment. 
Test No. 10: Buff Plymouth Rock hen in laying condition, leg band No. 28, weight 
6 pounds. 
7 a. m. fed 20 gms. wheat middlings with water and lampblack. 
10:05 a. m. first excreta voided. Excreta black. 
7 a. m. fourth day after 72 hours excreta normal. 
The indicator showed that food passed through the intestinal tract in approximate¬ 
ly three hours. This hen laid one egg on the first day of the experiment. 
Test No. 11: Buff Plymouth Rock hen, in laying condition, leg band No. 30, 
weight 6 pounds. 
7 a. m. fed 20 gms. wheat middlings mixed with water and lampblack. 
10:00 a. m. first excreta voided. Lampblack present. 
3:30 p. m. third day all traces of lampblack gone. 
The hen laid an egg each of the first two days. 1 he indicator showed that food had 
passed the entire length of the digestive tract in approximately three hours. It was 
noted that in the latter part of this experiment that the outside of the fecal mass was 
