Feeding Trials with Dairy Cows. 



55 



either to one poorer or to one richer in albuminoids, does not 

 affect the yield ol butter fat to any appreciable extent. It is 

 held therefore that these experiments in so far as they go 

 support the view that the amount of butter fat a cow gives 

 is not materially dependent upon the nature of her food, but 

 is governed by other causes, such as the period of lactation, 

 and the cow's individual aptitude to produce richer or poorer 

 milk. 



Weight of Milk per Week. 





lbs. 



lbs. 



lbs. 



lbs. 



lbs. 



lbs. 



lbs. 



1 



lbs. ' 



lbs. 



Cow No. i 



159 



161 



164 



159 



160 



146 



159 



153 



162 



» 35 - 



86 



95 

 98 



106 



80 













5 25 - 



116 



117 



no 



1 1 1 



100 



87 



67 



44 



„ 3i - 



151 



156 



153 



141 



158 



150 



157 



138 



134 



» 34 " 



167 



168 



152 



137 



147 



141 



124 



119 



116 



„ 38 - 



149 



152 



151 



141 



149 



132 



143 



142 



143 







Percentage of Butter 



Fat. 









Week 





2 



3 



4 



5 



6 



7 



8 



9 



Cow No. 1 



2*91 



3-i8 



2*91 



3'03 



3'45 



3 "24 



3-48 



y6i 



3-30 



» 35 • 



3-68 



3 '49 



3'3o 



3 '54 









3-63 





„ 25 - 



3-67 



376 



3 33 



3-62 



3'57 



3-56 



3-66 



4-3 2 



„ 31 



3"o3 



3-12 



2-48 



3-02 



3-01 



2-81 



2.70 



2-85 



3-02 



» 34 - 



2'6l 



2-87. 



2'57 



2-82 



2 87 



272 



271 



2-82 



2-92 



„ 38 - 



3-90 



37i 



3*44 



3'45 



3-36 



377 



3-48 



3'57 



3'34 



