590 



Bulletin 318 



PART II 



THE SECOND YEAR'S WORK WITH THE ORIGINAL FOWLS 



The second part of this bulletin is concerned with the data obtained 

 during the second year of work on the fowls used in the experiments 

 described in Part I. The same fowls were continued in the same pens 

 imder similar care and treatment. 



FOOD CONSUMPTION 



The consumption of whole grain was noticeably less during the second 

 year. This was due to the heavy consumption of ground feed. The 

 consumption of the latter, however, was much more evenly distributed 

 among the different pens. The strong pens averaged a larger consumption 

 of total food during the second year. The fowls in the strong pens ate 

 a slightly less amount of whole grain, on the average, than did those in 

 the weak pens. The consumption of meat scrap was greater in the strong 

 pens, because of the greater use of the dry mash in those pens. (Table 12.) 



TABLE 12. Consumption of Food per Hen (in Pounds) 

 (December 8, 1908, to December 6, 1909) 



Pen 



Total, including grit and 



shell 



Total, not including grit 



and shell 



Total whole grain 



Total ground grain .... 

 Total whole and ground 



grain. 



Total grit and shell . . . 

 Pounds of whole grain to 



each pound ©f ground 



grain 



Percentage of meat scrap 



to grain 



Pounds of other foods to 



each pound of grit and; 



shell 



Summer 

 selected 



Fall selected 



White 

 Leghorns 



White 

 Leghorns 



Barred 



Plymouth 



Rocks 



Strong Weak Strong Weak , Strong Weak 



78 



82.50 



75-80 

 38.80 

 16.81 



79 



76 



77.08 

 42.87 

 12.95 



55.61 55.82 

 6.70 4.16 



2.30 3-31 



81.24' 79-44 



76.92 



23 



77.20 



9.22 

 II. 31 



7-59 

 18.52 



. . 74-85 

 42.581 45.03 

 15.47 11.00 



58.05 56.03 

 2.52 2.35 



2.75 

 8. II 



30.52 



409 

 5-96 



31.85 



7 104.83 



100.87 

 56.44 

 16.39 



72.83 

 3-96 



True average 



Strong Weak 



3-50 

 6.66 



3-44 

 6.90 



23-911 25.47 



91. 12 



86.39 

 46.59 

 16.53 



63.12 

 4-73 



2.81 

 8.09 



18.26 



89.02 



85.45 

 48-63 

 13-69 



62.32 

 3-57 



3 55 

 6.86 



23 93 



Difference 



Strong Weak 



2.10 

 0.94 



2.84 



0.80 

 1. 16 



1.23 



2.04 



0.74 



5. 67 



In most instances the flock that produced the largest ntmiber of eggs 

 consumed the greatest amount of meat scrap and dry mash. The amount 

 of grit and shell eaten the second year was about the same as the first. 

 The stronger fowls ate the greater amount of grit and shell. 



