FEEDING GRADE BEEF COWS RAISING CALVES. bik 
TABLE 7.—Gains and losses during tivo summers on pasture and total gains for 
winter and summer, 
| Weights on pasture.) Gain (+) or loss (—) per cow. 
Lot ie Number | Days on ra Niel g 
No. as Nae of cows. | pasture. Winter 
Tnitial. Final. |Summer.| Winter. and 
summer. 
Pounds. | Pounds. | Pounds. | Pounds. | Pounds. 
TUPI REY a2 3 pe ee ee 10 110 779 916 +137 — 86 +51 
TMU Gye ats See Sng Cee ae 10 140 766 761 —5 +26 +21 
ChAT Ste a a Rae) DA 772 838 +66 —30 | +36 
2/2 Sn 10 140 789 (Ol ee (> SUIS +49 
sl GOT ee ine aa 10 140 835 916 +81 —35 +46 
UPN aeahigh Oe 10 140 808 803 25 +75 +70 
ss 2  ——————————————— 
STANT eV 2 Sig ga tele a a | | Sa a 821 859 +38 +20 +58 
Paco es ea ee ee 10 140] +818 877 +59 245) | +10 
é 
The chief value of Table 7 is that it shows what gains may be 
made by cows on grass while they are suckling calves. It also shows 
that the lots which lost in weight during the winter made greater 
gains during the following summer than the lots which had main- 
tained their weight through the winter. However, the lots which 
had maintained their weight through the winter made greater gains 
for the whole year than the lots which had lost in weight during 
the winter. 
GRAPHIC PRESENTATION OF MONTHLY WEIGHTS. 
The gains and losses in weight from month to month made by 
each lot of cows during 1915-16 and 1917-18 are shown graphically 
in figure 7. 
The horizontal distance on the chart indicates the number of days 
the cows were fed during the winters and pastured during the sum- 
mers. The average length of the total period for the 2 years was 
324 days, of which 128 days were in the winter period and 196 in 
the summer period. The heavy black vertical line near the center 
of the chart marks the dividing line between the winter and summer 
periods. Vertical distance represents changes in live weight of the 
cows as indicated by the figures along the left side of the chart. 
The curves for the cows of Lots 1 and 3 represent an average of 2 
years’ feeding, while those for Lots 2 and 4 represent only 1 year’s 
feeding. Figure 8, showing the gains made by the calves is based on 
the feeding year 1915-16 alone, because no complete records were 
ebtained for 1916-17, 1917-18, and 1918-19, the calves having been 
sold before the end of the summer periods. 
Since the average weight of the cows for 1915-16 and 1917-18 
was (99 pounds, all the lots are started at the 800-pound line tc 
