I70 



Journal of Agricultural Research 



Vol. VI. No. 4 



with all but two cows, which were given a still more reduced allowance 

 of water following the second full-allowance period. Table I gives the 

 results for each cow. 



Table I. — Comparison of the effect of a full and a limited allowance of water on the 



composition of milk 



cow loo 



Water allowance. 



Full 



Do. 



Transition. . 

 Limited . . . . 



Do 



Transition. . 

 Full 



Do 



Transition. . 

 Limited . . . . 



Do 



Average : 

 Full.... 

 Limited 



Total 

 milk. 



Pouiids. 

 2 20. 6 

 240. 6 



205-3 

 198.8 



199-3 

 197.6 

 172. 2 

 167. o 

 149.8 

 135-8 

 138. o 



200. I 

 168.0 



Total 

 water. 



Pounds, 

 412. 5 

 502, 



340 



340 



340 



434 



378.0 



358.0 



200. o 



205.0 



215.0 



Fat. 



Per cent. 



412. 5 

 275.0 



4-65 

 4.80 



Pounds. 



9-93 

 10.83 

 9.44 

 9-54 

 9-37 

 8.60 



8.44 

 7-85 

 7- 19 

 5-65 

 6.62 



9. 26 

 7-79 



Specific 



gravity. 



1-033 

 1.032 



1-033 

 1.034 



1-033 

 1.032 

 1.032 

 I-OJ3 



1-033 

 1.032 

 1.032 



Solids 

 not fat. 



Per cent. 

 9. II 

 9. 19 



9-27 

 9-36 

 9. 18 



9- 

 9- 

 9- 

 9- 

 9- 

 9- 



9. 12 

 9.24 



Mois- 

 ture. 



Per cent. 

 86.39 



86. 23 

 85.96 



Ash. 



Per cent. 



o. 720 

 . 710 

 . 720 

 . 710 



•70s 

 . 700 



•745 

 •747 

 •755 

 •770 

 •750 



730 

 734 



Total 

 prote-in. 



Percent. 



3- 35 

 3^35 

 3-3(> 

 3-52 

 3^53 

 3^41 

 3.68 

 3.66 

 3.80 



3^72 

 3.61 



3^51 

 3-59 



Full 



Do 



Transition. . 

 Limited . . . . 



Do 



Transition. . 

 Full 



Do 



Transition. . 

 Limited . . . . 



Do 



Average: 

 Full.... 

 Limited 



500.5 

 502.0 



320. o 



320.0 



320. o 

 496. o 

 462. o 



473-0 

 250.0 

 255-0 



280. o 



484. o 

 294. o 



770 

 770 

 750 

 740 

 740 

 730 



720 



740 



755 

 750 

 730 



750 

 740 



3-94 

 3.88 



cow 19 



