488 EXPERIMENT STATION RECORD. 



«'(•., 4 {190J), Xit. 4-:, pp. 6SS-G33). — Experiments fondneted by L. Nicolas are 

 reported and discnssed. Two rations were compared with 2 lots of 10 cows each, 

 the experiment lasting 2 months. Ration 1 was composed of beets, oil cakes, bran, 

 hay, and oat straw; contained 1.030 kg. of protein, 6.222 of carbohydrates, and 0.361 

 of fat: and had a nutritive ratio of 1: 8.57. Ration 2 was composed of molasses, bran 

 and mi.ldlings, beets, chaff, and oat straw; contained 0.592 kg. of protein, 5.139 of 

 carbohydrates, and 0.158 of fat; and had a nutritive ratio of 1: 11.89. xl record was 

 ke{)t of the live weight of the cows, the yield of milk, and the fat content of the 

 milk during every tenth day of the experiment. The results showed a diminution 

 in li\i' weight and in milk i)roduction on the molasses ration as compared with the 

 ordinary ration. The author, however, attributes the results not to the molasses, 

 but to its substitution in too small quantities for concentrated feeds. 



Feeding- beet pulp and sugar beets to cows, B. C. Buffum and C. J. Griffith 

 ( OjIii-ikIo Std. }h(I. 73, pi>. ll-^.'4). — A ]-ati<in containing 24 lbs. of Ijeet pulp was com- 

 pared with one containing 12 lbs. of sugar beets. The rations in other respects were 

 alike and had the same nutritive ratio. The experiment included 4 cows for 11 

 weeks, 1 cow for 4 weeks, and 5 cows for 3 weeks. Detailed data are presented in 

 tables, and notes are given on the different cows. The results for the 5 cows longest 

 in the experiment showed an average weekly gain in live weight of 6.2 lbs. and an 

 average weekly yield of 131.1 lbs. of milk and 6.76 lbs. of butter when fed pulp, and 

 an average weekly gain in live weight of 0.2 lb. and an average weekly yield of 127.4 

 lbs. of milk and 6.90 lbs. of butter when fed beets. The profit from feeding pulp at 

 $1 per ton was over 3 times as much as the profit from feeding beets at S4 per ton. 

 With butter at 20 cts. pei pound the feeding value of pulp is estimated at $2.61 per 

 ton and that of beets at $5.06 per ton. 



Demonstration experiments on the feeding of dairy cows conducted at the 

 expense and under the supervision of the govfernment during the winter 

 of 1901-2 {Bui. Agr. {BrnsseW], 18 [1902), No 6, pp. 880-972).— Det^LWed. data are 

 given for a large number of feeding experiments carried out in the different provinces 

 of Belgium, with a view to improving the rations in ordinary use. In each instance 

 the ordinarj^ and modified rations and the yield of milk and butter and other data 

 are given, together with comments and conclusions. 



Influence of kola feeding stuff upon milch cows, O. Hagemanx, J. Hith, and 

 E. H. Stein {Lwidir. Jalirh., 31. {190..'), Xo. 4, pp- 5i£»-5„^7).— The influence of this 

 feeding stuff upon milk secretion was tested with one cow during 2 periods of 1 

 month each and the digestibility of the material was determined. A slightly favor- 

 able action upon milk secretion was considered as shown by the results. 



Milking sheds, R. Crowe {Jour. Dept. Agr. Victoria, 1 {1902), No. 6, pp. 574, 575, 

 ph. 5). — An illustrated description of the type of milking sheds extensively'used in 

 Victoria. 



Investigations on the micro-organisms in the air of stables, in freshly 

 drawn milk, and in the mamnmry gland, C. Barthel {Rev. Gen. Laii, 1 {1902), 

 Nos. 22, ))]>. 505-516; 23, pp. 529-542). — The investigations here reported were made 

 at different times from 1899 to 1902, and included determinations of the number of 

 micro-organisms and studies of the different kinds. Cultures made from the udders 

 of 14 cows showed the presence of micro-organisms in every instance. As, however, 

 control cultures from other tissues gave similar results and as the experiments were 

 not carried on under entirely favorable aseptic conditions, the author was unable to 

 decide whether or not micro-organisms are normally present in the healthy udder. 

 The work was directed mainly toward determining the species present. The general 

 conclusion is drawn that the micro-organisms found in the air of stables, in freshly 

 drawn milk, and in the udder of the cow are only the species commonly found in the 

 air and have in general no action on milk, and that they are therefore very pr()l)ably 

 without practical interest in dairying. 



