74 BULLETIN 1301, U. S. DEPARTMENT OF AGRICULTURE 
The gains in the rotation pasture are between those in the larger 
and the smaller pastures. The 30-acre pasture gives the lowest 
gains per head, but the gains per acre in it are high. A table similar 
to Table 31, but for the years the rotation pasture has been in oper- 
ation, would show the same relative gains for the various pastures. 
If only the years 1920, 1921, and 1922,.were considered for all pastures, 
the same relative ranks would still obtain except that the rotation — 
pasture would show the highest gain per acre. 
TABLE 30.—Gains of 2-year-old steers! on the 70-acre pasture at the Northern Great 
Plains Field Station for the 7-year period, 1916-1922, inclusive 
Total gains (pounds)— 
Total monthly gains or losses? (pounds) Number 
Seasonal 
Vi a | 
i Per Per 
| an. | 58° | gest 28 | per | per (natal eee 
Au- | 7 Oc 2 er | Per | poun ally a, | Days 
May June July gust = tober Lead head. acre i pace grazed: 
ive 
weight 
BAL) | (a AG eee ews! fee oe 1, 035 885 610 635 | —50 | 3,115 | 311.5 | 44.5 41.1 2.08 id 150 
AOI ae 140 | 1,010 | 445 555 | 370 ;—390 | 2,130 | 213.0 30. 4 ffs pile ys ee se lT, 155 
TQS ees 595 | 1,055 HY) 330 495 130 | 3,180 | 318.0 45.4 45.0 -2.05 10 155 
TOTS See 1,510 420 700 310 50 | 2,990 | 299.0 | 42.7 37.4 2.14 10 140 
1920 eee ede Ee 1,35 690 495 595 | —70 | 3,060 | 306.0 | 43.7 39.2 2.04 10 150 
19213 Se eS 560 980 590 750 100 185 | 3,175 | 317.5 | 45.4 44.5 | 2:12 10 150 
1922@ SR ee 580 1,130 920 400 + 38C 25 | 3,415 | 341.5 | 48.8 | 50.3 | 2.28 10 150 
Average____, $469 | 1,151 | 646: 549) 412: —I7 |#3,009 300.9 | 43.0 40.9 2.01 10 150 
i 
1 Yearlings were used in part in 1916 and 1918. The gains shown have been reduced to a 2-year-old basis- 
and differ but slightly from those actually made. When yearlings were used, the number of cattle was: 
increased to bring the total initial weight up to about 7,500 pounds. 
2 A minus sign (—) indicates a loss. 
3 Average period of 10 days for the four seasons that the cattle were started on pasture in May. 
wus average does not equal the sum of the monthly averages because the grazing periods were not. 
uniform. 
TABLE 31.— Gains of 2-year-old sieers! on the continuously grazed and rotation 
pastures ai the Northern Greai Plains Field Station 
[The gains shown for the continuously grazed pastures are for the 7-year period, 1916-1922, inclusive; those 
for the rotation pasture (70 acres) are for the 5-year period, 1918-1922, inclusive] 
Average total gains = 3 
Average total monthly gains, or losses = | = : sac we Ss! 
GUERSS, Seasonal of— 
Pasture | | | | Per 
Au- Sep- Octo- Per Per | Per ean head, Steers Days 
May June July | gust Sl ber ee head acre a daily pas- grazed 
: ive ture 
weight 
— ES 
100 acres______ 2400 1.086 659 5i4 417 45 2,949 | 294.9 29.5 39,9 | 1.97 | 10 150 
‘yore res £469 1,151 646 549 412 —17 3.009 300.9 43.0 40.9 2.01 :-10 150: 
“MMACTES == #441 1,161 629 350 148 | —204 | 2,535 | 253.5 | 50.7 O47 1420-19 148 
S30 acres ss: | 4394 | 1,070 480 206 5s—218 ®*—285 1,816 181.6 | 60.5 24. 5°11. 62 110 112 
Rotation, 70 | 
ACTES ues = 7865 1,379 856 662 368 —§ | 3,778 | 277.8 | 54.0 37.7 | 1.86} 13:6 149 
iY earlings were used in part in 1916and 1918. The gains in the above table have been reduced to a 2-year- 
old basis and differ but slightly from those actually made. When yearlings were used, the number of 
cattle was increased to bring the total initial weight up to about 7,500 pounds. 
2? A minus sign (—) indicates a loss. 
A 3 These averages do not equal the sum of the monthly averages because the grazing periods are not uni- 
orm. 
4 Average period of 10 days for the four seasons that the cattle were started on pasture in May 
5 Average period of 21 days during four seasons that the cattle remained on their pasture in September-~ 
6 Loss for 30 days one season, 1916, the only year the cattle finished the season on their pasture. 
7 Average period of 12 days during three seasons that the cattle were started on pasture in May. 
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