11 



When cows go from barn feed to pasture glass in Ma}-, the}- are 

 changed onto very watery food, and it is generally thought that while 

 there is usually a considerable increase in quantity, there is also a 

 decrease in solids in the milk. 



During the year from Sept., 1888 to Sept., 1889, the milk of three 

 cows, two Shorthorns and a Jerse}', was analyzed daily, night and 

 morning. One of these dried off' at about the time of going to past- 

 ure, and so I can not give any figures of value on this point from 

 her milk ; the other two however were affected as follows : 



EFFECT OF PASTURE GRASS ON QUANTITY AND QUALITY OF MILK. 



JERSEY. SHORTHORN. 



Increased Milk, 2.3 pounds daily. 2 pounds daily. 



" Fat, .2 of one per cent. .05 of one per cent. 



" Caseine, (no change.) .15 " " 



" Solids, .2 of one per cent. (no change.) 



Decreased Sugar, (no change. ) .2 of one per cent. 



Here we have two ways b} T which the quality of milk was affected. 

 The Shorthorn's milk was not appreciably enriched, it is true, but, so 

 far as it was affected, there was no change in the per cent, of water 

 and solids, but the fat and caseine together were increased .2 of one 

 per cent., while the sugar was decreased exactly the same amount. 



The Jersey milk was not changed in sugar or caseine, but the fat 

 was increased, and to the same extent the per cent, of solids was 

 made more. 



On the whole herd numbering about twenty, the milk was increas- 

 ed, while the amount necessary to produce a pound of butter was 

 decreased about 1.5 pounds. 



Here we see that succulent food made more milk and better milk. 



ENSILAGE. 



The substitution of ensilage for dry fodder has, by some writers 

 been characterized as a " polite way to water milk ;" is this true? 



Two Shorthorn cows gave the following results, when changed 

 from dry fodder to ensilage : 



No. 1. No. 2. 



Increased Milk, £ lb. daily. ^ lb. daily. 



" Solids, .3 of 1 per cent. (no change.) 



Decreased Sugar, (no change.) .17 of 1 per ct. daily. 



Solids, .07. " " " " 



Increased Fat, .15 of 1 per cent, daily, .01 



(i 



it 



Caseine, .08 " « " '> .20 



