17.50 165.00 8.75 17.31 22.25 10.50 10.31 130.25 8.75 19.93 17.50 23.12 105.00 11.56 10.50 10.75 131.06 8.75 19.75 17.75 20.31 105.00 13.25 15.87 9.75 6.62 120.50 22.62 31 The average weight of the sheep in each pen, for each week of the experiment is given in table No. 3. The average weight for the week is obtained by adding the weight at the beginning of the week, to the weight at the close of the week, and dividing the sum by two. TABLE No. 3. AVERAGE WEIGHT OF SHEEP IN EACH PEN FOR EACH WEEK. WEEK. PEN No. 1. PEN No. 2. PEN No. 3. PEN No. 4. PEN No. 5 PEN No. 6. In comparing the amount of food consumed in the different pens each week, and the amount of food consumed at different periods in the same pen, it becomes necessary to bring the weights of the sheep to a uniform standard. One hundred pounds of live weight is taken as a convenient standard of comparison in the following table, (No. 4,) which gives the amount of food consumed each week, for each 100 pounds of live weight. This table is formed from tables Nos. 2 and 3, by a simple proportion. For example, in Pen No. 4, the average weight of the sheep the first week, according to table No. 3, is 168.50 pounds. The weight of roots consumed in this pen for the week, according to Table No. 2, is 28.50 pounds. The amount of roots consumed by each 100 pounds of live weight, may be found as follows: 168.50: 100 lbs.:: 28.50 100 168.50)2850.00(16.91 lbs. of roots con By reference to Table No. 2, it will be seen that an increase in the fixed ration of corn and roots, was made the 7th week, and again the 22d week. The object of this increase was to make the fixed ration very nearly the same for each 100 lbs. of live weight throughout the experiment, so that any variation in the amount of feed required during the different periods of feeding, would be shown in the hay consumed. The fluctuations in the weight of the sheep from week to week, were, however, so frequent as to prevent a complete adjustment of the fixed ratior, to the weight of the animal. |