576 EXPEEIMENT STATION EECOED. 



at 5 cts, per pound. On the basis of butter fat sold at 33^ cts. per pound, a 

 loss of $5.62 for the cows during the actual feeding of barley was obtained. 



In a second and similar experiment with two lots of nine cows, fed during 

 two periods of four weeks each by the reversal method, during the alfalfa- 

 barley periods the cows consumed an average of 440 lbs. of green alfalfa, 95 lbs. 

 of alfalfa hay, and 40.8 lbs. of barley per head per week, and produced 134.9 

 lbs. of 3.78 per cent milk, containing 17.3 lbs of solids and 5.08 lbs. of butter 

 fat; during the alfalfa periods, 523 lbs. of green alfalfa and 98 lbs. of alfalfa 

 hay, and produced 119.1 lbs. of 3.76 per cent milk, containing 15.1 lbs. of solids 

 and 4.48 lbs. of butter fat. Larger gains in weight of the cows were made dur- 

 ing the barley periods than when rough feed only was fed. The increase in 

 the value of the products obtained as a result of feeding barley was not suflB- 

 cient to pay for the grain fed, whether the calculations be based on whole milk 

 at 16 cts. per gallon or butter fat at 33J cts. per pound. 



The results of the two exi:>eriments show that "an immediate increase in 

 production will be secured as a result of tbe grain feeding, but that this in- 

 crease will not, as a rule, pay for the extra cost of the ration. On account of 

 the increased production obtained and the residual effect of the grain feeding, 

 as well as its favorable influence on the condition of the cows and their off- 

 spring, it may be concluded, however, that the practice of feeding grain to 

 cows on alfalfa is economically sound and may be recommended. This holds 

 true, especially, for heifers and young cows, as well as for heavy-producing 

 animals which can not be brought to a maximum production on roughage only, 

 even if this be as excellent and palatable a feed as green alfalfa or good alfalfa 

 hay." 



Prolificacy in the breeds of dairy cattle {Guernsey Breeders' Jour., n. ser., 

 7 {1915), No. 7, pp. 18, 19, fig. 1). — ^A comparison of the various breed associa- 

 tions as regards number of registrations, increases in registration during the 

 past decade, and extent of importations. 



Holstein makes new world's record {Breeder's Gaz., 67 {1915), No. 25, p. 

 1207). — It is said that the world's record for fat production has been broken 

 by the Holstein cow Finderne Pride Johanna Rue, which has completed a 

 record of 28,403.7 lbs., of milk containing 1,176.47 lbs. of milk fat in one year. 

 This cow produced in seven days, at the close of her yearly test, almost as much 

 fat as in her best seven days at the beginning of the test. 



The dairyman versus the dairy, C. E. Nokth {Amer. Jour. Puh. Health, 5 

 {1915), No. 6, pp. 519-525, fig. 1). — This article relates the circumstances of a 

 demonstration which had as its puri^ose a comparison of the work of two 

 groups of dairy farmers producing milk at different times in the same dairies. 



It is concluded that the dairyman is the chief factor and the dairy of sec- 

 ondary importance. The clean dairyman may be transported from dairy to 

 dairy and can make clean milk wherever he goes. It is said that if all non- 

 essentials or matters of secondary importance are eliminated, the factors which 

 even alone are sufficient to produce under the conditions found in ordinary 

 dairies a milk so clean that it will have with great regularity a bacterial count 

 of less than 10,000 bacteria per cubic centimeter are as follows: Milking with 

 dry hands into covered milking pails, the proper washing and sterilization of 

 milking pails and milk cans, cooling the milk by placing the cans in tanks of 

 cold water or ice water, regular laboratory testing of the milk for bacteria, and 

 payments based on the laboratory tests. 



The score-card system for the inspection of dairy farms {Univ. Col. Read- 

 ing, Dcpt. Agr. and Hort. Bui. 22 [1915], pp. XV+18, fig. i).— Part 1 of this 

 bulletin consists of a discussion of the score-card system by J. INIackintosh, and 

 part 2 contains a score card with explanatory notes. 



