T1IK HOG INDUS'! \[\ . 
137 
Economy of 8kim-milk feeding. 
Ration. 
Milk and grain 
Grain 
Milk 
Number 
of tests. 
Number 
of pigs. 
Average 
weight at 
beginning. 
l'oii mix. 
40 
63 
Average 
gain. 
/'oil II ( Is. 
no 
74 
Number 
of days 
fed. 
L33 
121 
108 
Average 
daily gain. 
/'omuls. 
1.27 
Ration. 
Milk and grain. 
Grain 
Milk 
Feed eaten per Dry mat 
100 pounds gain, ter per 
100 
pounds 
gain. 
Grain. 
Pounds 
292 
470 
Milk. 
Pounds. 
3.312 
Pounds. 
334 
421 
Diges- 
tible dry 
matter 
per 100 
pounds 
gam. 
Pounds. 
258 
319 
100 
pounds 
milk 
equal 
pounds 
gain. 
Pounds. 
23.2 
14.2 
Average amount 
feed eaten per 
day. 
Grain. Milk 
Pounds. 
9.74 
a Bui. No. 57, Utah Expt. Sta. 
These results indicate that, in rate of gain, an average of eight tests 
with a grain-and-milk ration shows gains made one-third faster than 
in five tests with grain alone, and nearly twice as rapidly as in four 
tests with milk alone. The least amount of dry matter required for 
100 pounds of gain was that with the pigs on milk alone, but the pigs 
on grain and milk required the least digestible dry matter per 100 
pounds gain. The returns from skim-milk feeding are estimated by 
Linfield at 17 cents per 100 pounds of skim milk when grain and 
milk were fed and 10 cents per 100 pounds of skim milk when milk 
alone was fed, grain being valued at 75 cents per 100 pounds. 
These experiments show that pigs fed on grain and milk are enabled 
to eat much more feed than those on grain alone; those on grain and 
milk ate 4.21 pounds of dry matter per head daily; the pigs on grain 
alone 3 ; 93 pounds of dry matter per head daily, and the daily average 
of the pigs on milk alone was only 2 pounds of dry matter. This is 
a point of great importance, and, with the figures showing rate and 
economy of gains, illustrates the fact that skim milk fed to pigs with 
grain enables them to eat more feed and to make more gain than pigs 
on grain alone. 
The unsatisfactory character of the gains made by the pigs on skim 
milk alone is very apparent. This method of feeding should never 
be resorted to. 
Com and dairy byproducts. — At the Tennessee Station Soule and 
Fain a fed four lots of pigs to compare a corn-meal and water ration 
with others, in which skim milk and whey were used. The pigs were 
high-grade Chester Whites and were confined in pens. The rations 
were as follows: Lot I was fed 6 pounds of corn meal and 10 pounds 
of water at the beginning of the experiment, increasing to 8 pounds 
of corn meal and 16 pounds of water toward the close. Lot II had 6 
"Vol. XV. Bui. No. 1. 
