230, ° Report or roe Frresr AssIsTANT OF THE — 
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The results obtained in feeding also four other lots of pigs for 
ten weeks, during which time the sow was fed with each lot, are 
here given. The pigs were of Poland China, Berkshire and 
Duroc breeds, and of Poland China-Duroc cross. 
At the beginning of feeding the average weights of pigs were: 
For the Poland China, 3.7 pounds, for the Berkshire, 3.3 pounds, 
for the Duroc, 2.5 pounds, and for the Poland China-Duroc cross 
bred pigs, 2.8 pounds. At the end of ten weeks the average 
weights were: 387 pounds for the Poland China, 38.8 pounds 
for the Berkshire, 31.1 pounds for the Duroc, 33.6 pounds for the 
Poland China-Duroe cross. 
For the first five weeks the food was skim milk and wheat 
bran, and for the next five weeks skim milk and “ mixed grain 
No. 7,” consisting of equal parts of wheat bran and ground oats. 
In feeding the sow to restore the weight lost while suckling the 
pigs, “mixed grain No. 7” and skim milk were fed for a few 
days, and corn meal and skim milk for the rest of the time. In 
calculating the cost of food, wheat bran was rated at eighteen 
dollars per ton, ground oats at twenty-six dollars per ton, corn 
meal at twenty-four dollars per ton and skim milk at twenty-five 
cents per 100 pounds. 
For the first period the gross cost of the gain made was least 
for the Poland China-Duroc cross, but considering the value of 
‘weight lost by the sow at the cost of afterward restoring it, the 
Berkshire pigs made the most profitable gain. For the second 
period the gross cost of increase of weight was least for the 
Poland China-Duroc cross, and considering the cost of weight 
lost by the sow the cost of the weight gained was least for the 
Durocs. The results of feeding calculated to the average per day 
for each 100 pounds total live weight fed, follow in tabulated 
form. Some of these results will be discussed later when more 
data from feeding trials not completed are available, and when 
more definite conclusions can be made. 


