428 



3fANUAL OF CATTLE-FEEDING, 



These changes in the composition of the dry matter of 

 the milk, however, mutually compensate each other, and 

 the average composition for a long period is found in al- 

 most all cases to be unaffected by the fodder. 



For example, in Kuhn's experiments, already cited, the 

 quality of the milk was determined by mean i of a large 

 number of analvses. In the f ollowino; table ''^* is iirivcn the 

 average composition of the milk obtained in the several 

 periods of the experiments described on page 422, both 

 from cow No. I. and also from Ko, 11. The milk, in 

 every case, has been reduced to a uniform water-content 

 of 88 per cent., thus eliminating the influence of the vary- 

 ing percentage of water in the natural milk. 



Cow I. 



Period. 



Length of 

 ptiiod 

 Days. 



Dry Matter 



otfiesh 



milk 



Per cent 



Milk with 88 Per Cent. Watee. 



Pat. 

 Per cent. 



Ca'.f-'in. 

 I^ei cent. 



Albumin. 

 Por cent. 



0.25 

 0.24 

 0.2G 

 0.2 J 

 0.2i 



Suffir, 

 Per ( cut. 



1,. 



2 



8 



4 



5 



85 



47 

 20 

 21 

 21 



10.03 

 11.72 

 11.33 

 10.88 

 11.17 



3.33 

 3.81 

 3.51 

 3.46 

 3.70 



2.25 

 2.2) 



2.38 

 2.3() 

 2.38 



5.08 

 4.70 

 5.0^ 



5,08 



Cow 11. 



1 

 2 

 3 

 4 



31 



10.37 



3.44 



2.24 



0.30 



41 



10.80 



3.44 



2.40 



0.31 



27 



10.55 



3.15 



2.47 



0.35 



21 



10.50 



3.30 



2 48 



0.31 



4.98 

 4.09 

 5.10 



* Loc. at., 1877, pp, 331 and 352. 



