1899.] 



PUBLIC DOCUMENT — No. 33. 



43 



not si and a reasonably generous feeding had 1 tetter be con- 

 signed to t he butcher. The writer is of the opinion thai 

 animals weighing from 800 to 1,000 pounds, producing from 

 10 to 1") quarts of milk per day, should receive about 2.5 

 pounds of digestible protein and 15 to 16 pounds of total 

 nutrients daily. This is in accordance with Wolff's rations. 

 When protein is costly, it might be advisable to reduce the 

 amount to 2 pounds daily. The detailed records of these 

 and other experiments along this line will be published later. 



G. Digestion Experiments. 

 During the past three years there have been made\bout 

 forty successful digestion experiments, mostly with the va- 

 rious concentrated feeds, to ascertain their value for feeding 

 purposes. The details of the experiments have not been pub- 

 lished. Some of the results (digestion coefficients) have been 

 published in Bulletin No. 50, and in the annual reports for 

 1896 (page 135) and 1897 (page 84) ; others follow below. 

 The results have been utilized in showing the nutritive value 

 of a number of coarse fodders, and in preparing a key to the 

 comparative values of concentrated feeds, as given in Bulletin 

 No. 56 (page 23). It is hoped to publish the details of the 

 experiments before long. 



ingestion Coefficients resulting from Digestion Experiments. 



Kind op Feed Stuff. 



SB 



p.3 a. 



3 



s: 



■- a 

 Q 



o 



a « 



E a 



Hay (largely Poa pratensis) , . . I 1 



Hay (largely Poa pratensis), . . I 1 



Average, both samples, . . . 2 



Hay of mixed grasses (late cat), . j 1 



Hay of mixed grasses (late out), . 1 



Barn-yard millet hay (late blossom), 1 



Barnyard millet (green, blossom), .1 1 

 Barn-yard millet (green, week later 



than above), 1 



Peas and oats (green, in blossom), . I 1 



Vetch and oats (green, in blossom), . 1 



Corn ensilage (Pride of the North), . I 1 



Hominy meal, 1 



Cerealine feed ' 1 



Peoria gluten feed i 1 



Quaker oat feed 1 



Victor corn and oat feed, ... 1 



H.O. dairy feed I 1 



H. O. horse feed, 1 



