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 smail 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 54 pounds. i 
TaBLe I—Results of feeding 4 lots of 3 pigs on various feeds during fattening 
period, Sept. 12, to Nov. 7, 1916 (56 days). 
Lot I . : 
(check). Lot II. Lot IT. Lot IV. 
Data. Fed 6 parts | Fed 6 parts) Fed 6 parts 
Fed 6 parts dried dried dried 
corn mea!,| pressed pressed pressed 
1 part potato, 1 | potato, 1 | potato, 1 
tankage. | part tank- | part oil part fish 
age. meal. meal. - 
Pounds Pounds Pounds Pounds 
ASVeT ALE) INI blaliswelet ois ti ee NA eee ee eae 153. 33 153. 33 150. 00 154. 33 
Average final weight. 22229200 02.05 MRS Bek ORE es | 242 198. 33 208. 33 228. 66 
AV Cage Pain Per PIS. eqs cece se eee Bee ce hee ee Re 87.77 45. 00 51. 33 74. 33 
avers Gailyigain e453 222) sey) Pee pet bo ee 1.57 - 80 91 1. 32 
MotallSfe ede eee eRe Leis Ae ea ated ui NN nic | 1,072 939 900.5 | 956. 5 
Pounds fed per 100 pounds gain. ....-.....--.-----..--- 403 695 584 : 428 
Daily feed per 100.pounds live weight ..........-....... 3. 23 3.16 2.93 | Boh 
Average daily feedeg te) 25652- 2-65 ce eeeciniee cic sence 6.4 5.5 5.3 | 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 403 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 
