RELATION OF PRODUCTION TO INCOME FROM COWS. 



15 



As milk production increased from Groups 1 to 9, there was a rapid 

 and very constant increase in income over cost of feed. Beyond Group 

 9 the number of records in each group was small. In Group 1 the 

 average production of milk was 1,662 pounds and the average income 

 over cost of feed was $3.47. In Group 9 the average milk production 

 was 13,250 pounds and the average income over cost of feed was 

 $218.19. The milk production per cow in Group 9 was about 8 

 times as much as in Group 1, but the average income over cost of feed 

 in Group 9 was about 62 times as great as in Group 1. This differ- 

 ence was not caused by increased price received for milk, as the aver- 

 age price of milk in Group 9 was lower than in Group 1. The price 

 of milk, howeA r er, did not vary greatly within the larger groups. 



ISOO 3000 4500 6000 T500 QOOO /OSOO /SOOO /350O /SOOO 

 POUNP5 OF MILK PER COW 



Fig. 8.— Relation betwwirmilk production and income over cost of feed. 



Figure 8 shows the relation of milk production to income over cost 

 of feed as given in Table 6. 



This <hart, which includes only the larger groups, is very similar 

 to figure 3, which shows the relation of butterfat production to 

 income over cost of feed. The line is very nearly straight. Tt shows 

 not merely that large producers have :i larirer income over <osl of feed 



than small producers, hut it mea iiree the increased income over cost 

 of feed in dollars. -I herd of 62 cows Wee those in (-'roup i mould A, 

 required to prod/uce as m/uch income over cant of feed as was prodm < d 

 Ijij the a/oeragi cow m Group ■>. 



