36 Report oF DEPARTMENT OF ANIMAL HUSBANDRY OF THE 
VALUATIONS OF FOODS. 
In estimating the cost of food, valuations were taken which 
approximated the market prices at the time of this feeding 
experiment. Corn meal was rated at $22.50 per ton, wheat 
middlings at $21, wheat bran at $19, animal meal at $35, Chi- 
cago gluten meal at $26, cream gluten meal at $29.50, linseed 
meal at $29, meat' meal and bone meal at $30, blood meal at $50 
per ton, milk “albumen” at 3 cents per pound, bone-ash at 2 
cents per pound and green alfalfa at $2 per ton. 
The records from feeding and results averaged for periods of 
one week are given in the accompanying tables. 
RATIONS. 
The feeding experiment proper extended over a period of ten 
weeks, beginning with ducklings one week old. For the first 
three weeks for Lot I 12.8 per ct. of the dry matter in the ration 
was supplied by animal food from which 21.4 per ct. of the total 
protein in the ration was derived. The ash constituents repre- 
sented 21.8 per ct. of the dry matter. For the following seven 
weeks 11.5 per ct. of the dry matter was from animal food from 
which 19.4 per ct. of the protein was derived. The ash constituted 
21.2 per ct. of the dry matter. 
For the first three weeks for Lot II 26.5 per ct. of the dry 
matter in the ration was supplied by animal food from which 
41.9 per ct. of the total protein was derived. The ash constituted 
23.7 per ct. of the dry matter, For the following seven weeks . 
25.1 per ct. of the dry matter was from animal food from which 
40.8 per ct. of the total protein was derived. The ash consti- 
tuted 23.8 per ct. of the dry matter. 
