DAIRY FARMING DAIRYING. 



815 



sion is drawn that cattle can be wintered successfully on grass silage, and that cows 

 can be expected to yield a reasonable amount of milk when fed exclusively on this 

 material. 



Feeding silage to cows, A. L. Knisely (Oregon Sta. Rpt. 1903, pp. 44, 45). — 

 Analyses of composite samples of milk from cows fed silage and from cows fed hay 

 are reported. No greater variations than usual were observed in the milk from cows 

 fed silage. Milk from cows fed silage had a more pronounced odor than milk from 

 cows fed hay, which was considered the only distinct feature noticeable. 



Bacterial analysis of milk from silage-fed cows, E. F. Pernot (Oregon Sta. 

 Rpt. 1903, pp. 54-56). — Cows were fed ordinary corn silage and silage which had 

 been heated by steam when placed in the silo to preserve it, and bacteriological 

 examinations were made of the milk which was obtained with aseptic precautions. 

 The results are briefly summarized as regards the total number of acid and nonacid 

 producing organisms found. Many samples were obtained free from bacteria. 



Dairying on the plains, J. E. Payne (Colorado Sta. Bid. 88, pp. 19-24). — This is 

 a brief popular account of dairying on the plains of Colorado. Notes are also given 

 on the construction and use of pit silos. It is stated that, as a rule, the returns from 

 dairying on the plains are comparatively small. 



Yield and composition of sows' milk, L. R. Davies ( Wisconsin Sta. Rpt. 1904, 

 j)/). 41-47). — This is a synopsis by A. S. Alexander of experiments conducted to deter- 

 mine the quantity and composition of milk produced by a sow, the amount of food 

 necessary for 100 lbs. gain in the weight of suckling pigs, the relative gains in weight 

 made during the daytime and night, and the influence of temperature on live weight. 



The conclusions drawn areas follows: "(1) The milk production of sows varies 

 considerably according to breed, temperament,, and feeding, and is influenced by 

 these factors to the same degree as with cows; (2) pigs while young can be fed more 

 economically per 100 lbs. gain in live weight than at any other time; (3) suckling 

 pigs make their chief gain in weight during the nighttime, those in this experi- 

 ment showing 70.89 percent as the proportion in gain made at that time; (4) marked 

 variations in temperature affect the weight of pigs favorably or unfavorably while 

 slight variations have no appreciable effect." 



On the daily yield and composition of milk from ewes of various breeds, 

 J. (t. Fuller and F. Kleinheinz ( Wisconsin Sta. Rpt. 1904, pp. 48-50). — The yield 

 of milk was determined by weighing the ewe before and after suckling her lamb and 

 also by milking by hand, the latter method failing to secure half of the milk. Data 

 for 14 pure-bred and grade ewes are reported, the average results by breeds being 

 summarized in the following table: 



Average yield and composition of ewes' milk. a 



a Changes have been made in this table as it originally appeared in the Wisconsin Report on the 

 basis of correspondence with the station — Ed. 



The transformation of food fat into miLk fat, S. Gogitidse (Ztschr. Biol., 46 

 (1905), No. 3, pp. 403-420). — Japanese wax was fed to a goat without influencing in 



