1905.] PUBLIC DOCUMENT — No. 33. 43 



51 Guernsey and Jersey cows under test, belonging to F. 

 Lothrop Ames of North Easton, N. I. Bowditch of Framing- 

 liam, W. L. Cutting of Pittsfield, R. F. and A. H. Parker 

 of Westborough, A. H. Sagondorph of Spencer, C. 1. Hood 

 of Low(^ll, A. F. Pierce of Winchester, N. 11., and 11. A. 

 Sibley of Spencer. 



In addition, seven-day butter tests are occasionally called 

 for by the Jersey Cattle Club, in which case it becomes neces- 

 sary to weigh, sample and test not only the milk but the skim 

 milk, buttermilk and butter ; and the total fat in the three 

 latter, together with that in the test samples, should balance 

 the fat in the original milk, with the exception of small me- 

 chanical losses. The butter is analyzed at the station labora- 

 tory. Seven-day tests are also made for the Holstein- 

 Friesian Association, which simply calls for the amount of 

 milk and butter fat produced by the animal during that 

 period. 



7. Work completed and in Progress. 



In addition to Bulletins Nos. 93 and 98, devoted to the 

 inspection of feeding stuffs, this department has published 

 during the year Bulletin No. 94, on distillery and brewery 

 by-products, and Bulletin No. 99, on dried molasses beet 

 pulp, and nutrition of horses. An experiment has been 

 completed on the use of dried blood as a source of protein 

 for milk production, showing that digestible protein in this 

 material is equal in feeding value to a similar amount in 

 cotton-seed meal. An experiment has also been completed 

 with Pratts food as an aid to milk production. The results 

 make clear that the claims put forward by the manufacturers 

 relative to the wonderful influence of this food in increasing 

 the quantity and quality of milk are entirely without foun- 

 dation. Bibby's dairy cake has also been compared with 

 gluten feed for the production of milk, and, while the results 

 are not yet entirely tabulated, it is quite evident that the 

 Bibby cake possesses no particular merits over other feed 

 stuffs of a similar composition, and that the price asked is 

 out of proportion to its actual feeding value. A number of 

 experiments have been in progress with green forage crops, 

 but, as the results at present are only of a tentative charac- 



