﻿22 



BULLETIN 1143, U. S. DEPARTMENT OF AGRICULTURE., 



On the row plat the average daily gain per pig for each of the four 

 years averaged 0.78 of a pound. A supplementary ration of corn 

 was fed. The 4-year average ratio is 2.96 pounds of corn per pound 

 of gain. 



The lots on the broadcast plat made an average daily gain of 0.69 

 of a pound. This required an average of 3.25 pounds of corn for 

 each pound of gain. 



Table 6. — Results obtained by pasturing 1 acre of brome-grass with pigs at Huntley, 

 Mont., each year from 1918 to 1921, inclusive. 





Num- 

 ber 



of 

 pigs. 



Pasture period 





Weights of animals and feed (pounds). 





Kind of 



plats 





Hog weights. 





Corn con- 

 sumed. 



Yield of 

 check 



and year. 



Date on. j Date off. 



Days. 



Initial. 



Final. 



Gain. 



Daily 

 gain 

 per 

 Pig- 



Total. 



Per 



pound 

 of gain. 



plat. 



Cultivat e d 

 rows: 

 1918 



8 

 6 

 2 

 6 



Apr. 30 July 9 

 Apr. 25 ! June 14 

 May 28 , July 9 

 May 19 July 28 



70 

 50 

 42 

 70 



764 

 582 

 170 

 732 



1,114 



726 



220 



1,042 



350 

 144 



50 

 310 



0.63 1,344 



.48 I 653 

 .60 166 

 .74 1,242 



3.84 



4.53 

 3.32 

 4.02 





1919 





1920 





1921 









Average 



5.5 



May 11 j July 8 



58 



562 



776 



214 



.61 851 



3.92 









Plats sown 

 broadcast: 



191S 



1919 



1920 



1921 



8 



i 



8 



Apr. 30 i July 9 

 Apr. 25 June 14 

 May 28 ! July 9 

 May 19 i July 19 



70 

 50 

 42 

 61 



778 



579 



109 



1,012 



1,152 

 770 

 245 



1,448 



374 



191 



76 



436 



. 67 1, 344 

 .64 653 

 .90 169 

 .90 1,412 



3.59 

 3.42 

 2.22 

 3.24 



664 

 



568 

 



Average 



6 



May 11 July 5 



55 



635 



904 



269 



.78 895 



3.11 



308 



The brome-grass pasture results are shown in Table 6 and Figure 

 3. When reduced to an acre basis, the row plat has carried an average 

 of 5.5 pigs for a period of 58 days from May 11 to July 8. These pigs 

 have made an average daily gain of 0.61 of a pound. The ratio 

 is 1 pound of gain for each 3.92 pounds of corn. 



z?/ 3 /?. 



MAY .JUNE iSULY 



MAY .JUNE JULY 



/9/3 

 /9/9 

 /920 



/92/ 



Fig. 3.— Diagram showing graphically the period in each year during which pigs were on brome-grass in 

 rows and brome-grass sown broadcast and the gains made on each pasture and between weighings. 



Six pigs were carried on the broadcast plat for an average of 55 

 days. This period was from May 11 to July 5. An average daily 

 gam of 0.78 of a pound per pig was made on this plat. Corn fed 

 amounted to an average of 3.11 pounds of grain for each pound of. 

 gain 



\ 



