422 MAKUAL OF OATTLE»FEIi]DING. 



Ill general, the percentage of dry matter in the milk 

 was increased by the large proportion of protein, while 

 the qnantity of milk (reduced to a uniform water-content) 

 is in every case greater than the calculated amount. 



Kejpeiflments ly G. Kiihn. — Very extensive experiments 

 upon the influence of the food on the production of milk 

 have been made by Gustav Jvulm, at the Mdckern Ex- 

 periment Station,"^ The following selection from his 

 results will serve to illustrate the influence of a ration rich 

 in albuminoids upon the quantity of milk. 



The experiment was made on two cows, and was divided 

 into four periods. In the first period each cow received a 

 so-called normal fodder, which was poor in protein and 

 consisted, per day, of 



16 5 lbs. of hay. 

 8 3 '' baxley straw. 

 38.5 " mangolds. 



In the second period this ration was improved by the 

 addition of 6,6 lbs. of palm-nut meal, which was replaced 

 in the third period by an equal amount of beans. In the 

 fourth period each cow received 27.5 lbs. of hay, and 

 in the case of cow No. I. a fifth period was added, in 

 which the fodder consisted of 27.5 lbs. of hay and 6.0 

 lbs. of palm-nut meal. The digestibility of the fodder 

 was not determined in these experiments, but it is evi- 

 dent that the higlily nitrogenous bye-fodders used must 

 have largely increased the proportion of protein in the 

 ration. 



The several periods extended over from three to nearly 

 seven weeks, during which time the fodder was accurately 



* Jour, t Laudw., 1874 to 1877. 



