EFFECT OF WINTER RATIONS ON PASTURE GAINS OF STEERS. 15 
Vertical distance on the chart represents changes in live weights of 
the steers. The weights corresponding to-each of the horizontal 
lines are given along the left side of the chart. As the average 
initial weight of each lot varied from year to year, the average 
initial weight per steer for three years is used as a basis in each 
chart for showing the gains made by each lot each year. 
Much of the difference caused by the winter feeding was over- 
come during the summer. On April 28 there was a difference of 95 
pounds between the highest and lowest lots; on June 23, 50 pounds; 
and on September 10, 33 pounds. 
CORRELATIONS. 
On account of the variations in the average gains of the six lots 
during the three years, as shown in Table 5, the correlations between 
the winter, summer, midsummer, and total gains of all the steers, 
based on the losses and gains of each steer, have been calculated vo 
substantiate the conclusions indicated by the average gains of each 
lot for three years. Consequently, Figures 9a, 9b, 9c, and 9d are 
presented to show the positions of the individual steers, when they 
are plotted according to their winter, summer, midsummer, and 
total variations in weight. Accordingly, the following results have 
been obtained: : 
Winter | Summer} Total 
gain. gain. gain. 
Pounds. | Pounds. | Pounds. 
TCO 3 ea ee a Oe aes ON os Se irs ee Ae ee cee ee ee ee 44.0 297. 7 1 342. 2 
LANG ARG OVAA GOI se seer ae tee ene ne Se Pe ee ea also eee 60. 1 62.7 57.6 
CORRELATIONS. 
THTAT DU PESHPTEPIET Shoes we ek ae ES ae Se ee ee ie ee eee oe —0. 57240. 034 
ANAT Gare UEC Glee eae ee Oe a ee ee nn ee — .4804 .038 
WUD PDO RD SS oo a a a a a ee ee ae re ee ee + .429+ .041 
SSELEENITI GR GOL AL eee ee ries oe Ry ER Tee oe Akh eee isos + .498+ .038 
REGRESSIONS. 
in ed ga ENON AVATAR Cees wey eet eee ene arp OR ne Boas cee cna aecane sates sieesss —0. 384 
SPOTL TyaUT Glee eet ete epee Ay ey: Nc Sa ek oped Bee) dees P REe Se RSE Sa aeebess oes Ssesescee - 407 
SPE SPO Se as See re ee a ee ney eee » 453 
SUETIIEN ANT AA TECER ce, Se a Se Se pg eR ee ea ee ee ees . 593 
According to the regressions, 100 pounds advantage in weight at 
the end of the winter is reduced to 61.6 pounds after 54 days on grass 
and to 40.7 pounds after 136 days on grass. In other words, during 
the first 54 days on grass, 38.4 pounds is lost of 100 pounds advantage 
as compared with 21.3 pounds lost during the rest of the summer 
period of 82 days, making a total loss of 59.3 pounds for the whole 
summer period. 
1The sum of the mean winter and summer gain is 341.7, while the mean for the total gain is 342.2, the 
discrepancy being due in all probability to the grouping of the gains in classes of 10 pounds range. 
