EXPERIMENT STATION. 



101 



Daily Ration per Etad. 



Hay 23.52 lbs. 



Provender 4.69 " 



Bran.. 2.50 " 



Mangolds ..... 7.50 " 



Total, - 



Total per LOGO lbs. live 



weight, 



Standard, 



The average daily yield of milk per head for five days preced- 

 ing these weighings was 24.74 lbs., equal to about 11.3 quarts. 



In the foregoing pages we have sought to make as accurate a 

 comparison as is possible under the circumstances of the rations 

 in use on these four farms with that which German investigators 

 have found to produce the best results. In every case we have 

 found more or less difference and in all but one a very noticeable 

 difference. For the sake of easy comparison the five rations are 

 brought together in the following table : — 



Dr. WoirB 

 Mr. Gold's Mr. Xorlon'8 Mr. Webb's Mr. Starr's standard 

 Ration. Ration. Kntlon. Ration. Ration, 



lbs. lbs. lbs. lbs. lbs. 



Dry matter 26.19 17.35 19.25 2.'..16 24.00 



Digestible protein 1.87 1.48 2.53 1.63 2.50 



carbhydrates 13.25 9.05 10..34 14.04 12.50 



" fat. 0.41 0.31 0.34 0.36 0.40 



Total digestible matter 15.53 10.84 13.21 16.03 15.40 



Nutritive ratio 1:7.6 1:6.7 1:4.4 1:9.1 1:5.4 



One point to be remembered in comparing these rations is that 

 Mr. Webb's and Mr. Starr's both contained roots. The very high 

 percentage of nitrogen in these roots indicates that they contained 

 large amounts either of nitrates or of the various amide-like bodies 

 which have been found in relative abundance in mangolds. Con- 

 sequently the numbers given under " protein" should be dimin- 

 ished somewhat to represent the true amount of this ingredient. 

 The difference thus made, however, is so small comparatively as 

 to have little effect on our conclusions. 



The question now presents itself, which of these five rations is 

 the best one, or are they all the best for their respective circum- 

 stances? OVjviously no complete answer can be given to this 

 question. We are not justified in concluding that the Connec- 



