NEw York AGRICULTURAL EXPERIMENT STATION. 109 
shire the least profitable. With three other lots of Berkshire, P. 
China and P. China—Duroc cross no difference resulted from a long 
feeding trial in cost of pork production, rate of growth or size at- 
tained and very slight difference in relation of dressed carcass to 
live weight. In both these trials, however, the P. China pigs dressed 
to slightly the better advantage. 
In a shorter feeding trial pigs of P. China-Duroc cross made a 
more profitable showing than others fed, the Duroc, Poland China 
and Berkshire pigs following in order of profitable growth. In 
another trial Small Yorkshire pigs made increase in weight at con- 
siderably the lowest cost though less pork was produced in the 
same time by an equal number of these smaller pigs. Pigs of the 
other lots listed in order of profitable growth were Tamworth-—P. 
China cross, Tamworth, Tamworth—Duroc cross and Poland China. 
Another long feeding trial showed slightly the more profitable 
rate of growth by Tamworth pigs, the Berkshire and Tamworth-P. 
China pigs giving results about alike and nearly as good as the 
Tamworth, and the Poland China pigs being not far behind. Pigs 
of Tamworth—Duroc cross made a considerably poorer showing than 
any of the others. 
In another extended feeding trial Yorkshire pigs again made in- 
crease in weight at somewhat the lowest cost per pound, though at- 
taining smaller size than other pigs, averaging at the close of feed- 
ing about 30 per ct. lighter than the Tamworths which were con- 
siderably the largest of any. The Poland China pigs and those of 
Tamworth—Duroc cross were not far behind the Yorkshire in cost 
of production. The Tamworth pigs, though the largest at the end of 
feeding, had attained their weight at a cost somewhat in excess of 
that for the other three lots. 
With five lots of cross-bred pigs in another long feeding trial the 
most profitable rate of growth was made by those of Yorkshire— 
Tamworth cross, those of Tamworth-P. China cross following 
closely.. There was a still further increase in cost of growth for 
the O. I. Chester-P. China cross. The Tamworth—-Yorkshire and 
Tamworth—Duroc pigs gave nearly the same result in cost of growth 
which was somewhat less profitable than that made by the other 
three lots. 
