﻿18 



BULLETIN 1143, U. S. DEPARTMENT OF AGRICULTURE. 



Rye has been pastured every }^ear since 1915. The detailed results 

 are given in Table 1. The average pasture period was from May 14 

 to July 4, a period of 51 days, for an average of 10.2 pigs per acre. 

 These pigs with an average initial weight of 1,104 pounds gained an 

 average of 279 pounds, or 0.58 of a pound a day for each animal. 

 Corn averaging 1,228 pounds was fed to supplement the pasture. 

 This averaged 4.42 pounds of corn for each pound of gain. 



Table 1. — Results obtained by pasturing 1 acre of winter rye with fall pigs at Huntley, 

 Mont., each year from 1916 to 1921, inclusive. 





Num- 

 ber 

 of 



pigs. 









Weights of animals and feed (pounds). 





Year. 



Pasture period. 



Hog weights. 



Corn con- 

 sumed. 



Yield of 

 check 





Date on. 



Date off. 



Days. 



Initial. 



Final. 



Gain. 



Daily 

 gain 

 per 

 pig- 



1 Per 

 Total, pound 

 of gain. 



plat 

 (bushels). 



1916 



1917 



1918 



1919 



1920 



1921 



110 

 S6 



10 

 10 

 15 

 10 



May 6 

 May 11 

 May 7 

 Apr. 25 

 May 28 

 June 9 



June 30 

 July 17 

 June 25 

 June 20 

 July 9 

 July 14 



55 

 67 

 49 

 56 

 42 

 35 



1,171 

 499 

 964 

 1,103 

 1,627 

 1,262 



1,510 

 762 

 1,191 

 1,390 

 1,897 

 1,548 



339 

 263 

 227 

 287 

 270 

 286 



0.62 

 .65 

 .46 

 .51 

 .43 

 .82 



1,480 ! 4.37 

 910 3.46 

 1,078 ! 4.75 

 1,403 , 4.89 

 1, 512 5. 60 

 984 3.44 



10.2 

 10.4 

 10.1 



3.6 

 14.1 



5.0 



Average, 

 6 years. 



10.2 



May 14 



July 4 



51 



1,104 



1,383 



279 



.58 



i 

 1, 228 4. 42 



i 



10.4 



i One of these pigs was pregnant during the pasture season 

 nine Is taken for this animal in the above calculations. 



3 At the end of 61 days one pig was removed because of pregnancy, 

 other five is used for the removed animal in these calculations. 



A weight equal to the average of the other 

 A weight equal to the average of th» 



The average yield of rye on the check plat was 10.4 bushels per 

 acre. 



Peas were pastured every year since the experiments were started 

 except in 1921, in which-year the crop was destroyed by hail. As the 

 work in 1915 was of a preliminary nature and the pasture was not 

 continuous with the other crops in the rotation, the results for that 

 year are not considered in the assembled data, which are given in 

 Table 2. 



Table 2. — Results obtained by pasturing 1 acre of peas loithfall pigs at Huntley, Mont., 

 each year from 1916 to 1920, inclusive. 





Num- 

 ber 

 of 



pigs. 









Weights of animals and feed (pounds). 





Year. 



Pasture period. 



Hog weights. 



Corn con- 

 sumed. 



Yield of 



check 



plat 



(bushels). 





Date on. 



Date off. 



Days. 



Initial. 



Final. 



Gain. 



Daily 

 gain 

 per 

 Pig- 



Total. 



Per 



pound 

 of gain. 



1916 



1917 



1918 



1919 



1920 



i 10 

 J6 

 10 

 10 

 15 



June 30 

 July 17 

 June 25 

 June 20 

 July 9 



July 20 

 Aug. 8 

 July 9 

 June 27 

 July 30 



20 

 22 

 14 

 7 

 21 



1,510 

 741 

 1,191 

 1,390 

 1,897 



1,780 

 915 

 1,420 

 1,467 

 2,044 



270 



174 

 229 



77 

 147 



1.35 636 

 1.32 358 

 1.04 364 

 1. 10 207 

 .47 , 800 



2.36 

 2.06 

 1.59 

 2.69 

 5.44 



10.9 

 2.3 

 5.6 

 

 2.2 



Average, 

 5 years. 



10.2 



July 2 



July 19 



17 



1,346 



1,525 



179 



1.18 j 473 



2.83 



4.3 



1 One sow was with pig. Weight for this animal was calculated as in the rye pasture (Table 1). 

 1 Five pigs from the rye plat and one from the brome-grass plat. 



