84 MASS. EXPERIMENT STATION BULLETIN 251 



Figure 4. — Net Relation between Price Received for Eggs and Labor Return 



per Bird, 1927. 



LABOR RETURN 

 PER BIRD 



DOLLARS 



45 50 



PRICE OF EGGS - CENTS 



The height of the bars represents the average trend of the relationship. An in- 

 crease of 5 cents in average price received for eggs was related to an increase of 33 

 cents in labor return per bird. 



Table 12. Poultry Flocks Classified According to the Average Price 

 Received for Market Eggs. 



Pall Fj(j<i Production 



The net effect of the percentage of fall egg production on labor return 

 per bird was difficult to measure because of intercorrelation with other 

 factors. The simple relationship without allowing for other influences 

 is shown in Table 13. 



Fall egg production was found to affect labor return not only through 

 more favorable prices but also because of its influence on the annual egg 

 production. The relation of each of these factors to fall production was 

 analyzed separately. 



