22 



Feeding experiments were conducted with the mixed ensilage con- 

 taining the sunflower heads, and the results are given in the following 

 extract from the report above mentioned: 



Each of the ten cows was fed 10 pounds daily of fine early cut hay. While on 

 corn ensilage they received 4 pounds bran and 4 pounds corn meal daily, while 

 on the Robertson mixture 2 pounds grain less for every 50 pounds of ensilage fed. 

 Professor Robertson states that as good results will be obtained with 4 pounds less 

 grain per 50 pounds of ensilage fed, but on account of lower fat and protein contents 

 of the mixture than contemplated by its originator, but 2 pounds less were fed. 

 During the sixteen weeks each cow had eight weeks' feeding on each fodder, so that 

 there were equal numbers of days' feeding equally distributed, the equivalent of 

 three hundred and thirty-six days' feed for one cow. 



Quantity and constituents of milk produced. 



Essentially the same amounts of milk and butter were given with the Robertson 

 mixture ration with 2 pounds less grain per 50 pounds of ensilage as with the corn- 

 ensilage ration. The difference in quality of the milk was too slight to lay stress 

 upon. 



REPORTS OF WORK DONE ON THE EXPERIMENTAL FARMS OF CANADA. 



ANALYTICAL RESULTS. 



The following table shows the results of the analyses made: 



Analysis of the sunflower stalks and leaves, 1892. 



Dr. Shutt, the chemist of the Canadian station, in commenting on 

 the above analyses, makes the following observations: 



The stalks and leaves contain but very little nutriment, being low in albuminoids 

 and fat, and containing a large percentage of water. Though still green, their fiber 

 was of a woody nature. Their food value is exceedingly low. 



A marked difference is to be noted between the analysis of the heads and seeds and 

 that of the stalks and leaves. The water is 10 per cent less, the albuminoids nearly three 

 times higher, and the fat six times greater than in the stalks and leaves. The heads 



