4 BULLETIN 596, U. S. DEPARTMENT OF AGRICULTURE. 
were given a little more than they could conveniently consume. Dried 
pressed potato is rather bulky, and it is difficult to judge exactly the 
right amount that will be cleaned up by the pigs at one feed. At the 
beginning of the test the amount fed was 2 pounds per head per day. 
This, of course, was a very small amount of feed for 150-pound pigs, 
but they were given this small portion because this method of gradu- 
ally starting them on a feed tends to keep the appetite keen, and the 
chances of going off feed are very much lessened. It also gives the 
pigs a better chance to cultivate an appetite for a new feed. One fact 
is evident from the figures given in the next table, namely, that the 
dried pressed potato rations were palatable and eaten readily by the 
pigs, since all those in the potato lots consumed an average daily 
ration of 5J pounds. 
Table I. — Results of feeding 4 Jots of 3 pigs on various feeds during fattening 
period. Sept. 12. to Xor. 7, 1916 (56 days). 
Data. 
Lot I 
(check). 
Fed 6 parts 
corn meal. 
1 part 
' tankage. 
Lot II. 
Lot III. 
Lot IV 
Fed 6 part: 
dried 
pressed 
potato. 1 
part tank- 
age. 
Pounds. 
Average initial weight 153. 33 
Average final weight 242 
Average gain per pig S7. 77 
Average dailv gain 1. 57 
Total feed. 1 , (172 
Pounds fed per 100 pounds gain 403 
Daily feed per 100 pounds live weight 3. 23 
Average daily feed 6. 4 
Pou nds. 
153. 33 
198. 33 
45.00 
3.16 
5.5 
Fed 6 parts Fed 6 parts 
dried dried 
pressed I pressed 
potato. 1 : potato. 1 
part oil j part rlsh 
meal. 
Pounds. 
150.00 
206.33 
51.33 
.91 
900. 5 
584 
2.93 
5.3 
Pounds. 
154.33 
22S. 66 
74. 33 
1.32 
956.5 
428 
2.91 
5.7 
All the pigs were in good, thrifty, and growing condition when 
the experiment began, and they maintained good condition and 
health during the progress of the test. A study of the table will 
show that lot 1 (check) excels all the others with respect to rate of 
gains, amount of feed consumed to produce 100 pounds of gain, and 
the average final weight. This lot of pigs was the largest and 
growthiest of any of the lots in the experiment. They were heavy 
feeders and returned good gains for the amount of feed consumed. 
These pigs consumed a daily ration of 6.4 pounds, made a daily 
gain of 1.57 pounds, and required -103 pounds of feed to produce 
100 pounds of gain. 
The lot receiving dried pressed potato and fish meal (Lot IV) was 
a very close second to the check lot. The figures, of course, show 
greater advantages in favor of the check lot than were apparent to 
the eye. Both these lots maintained tiptop condition throughout 
the experiment and carried a very high degree of finish. There was 
