80 EXPERIMENT STATION RECORD. 



indicate that a .sa\iiig (>f at least .?oO jkt carloiul of feed may be effected hy fee(lin<^ 

 3 lbs. of gluten iiieal i)er head daily in the jdace of an equal qnantity of connnon 

 feed mixtures. No deleterious effects on the health or live weights of the cows 

 were noticed during the experiments. Four pounds of gluten meal is cf>nsidered 

 a maximum allowance per day for dairy cows. It is suggested that both gluten 

 meal and feed may also prove valuable foods in feeding lu>rses, in amounts not to 

 exceed 3 to -4 lbs. per head daily. — f. w. woll. 



On feeding' of dairy cattle, L. Dyiire ( J'rieah-. Landm., 47 [1902), No. 11, pp. 

 128-1 S2). 



Feeding- corn stover; dehorning milch cows, C. M. Conner {South Carolina 

 Sla. Bid. 66, pp. 9). — The yields of corn stover (whole stalks after removal of the 

 ears) and corn fodder (blades only) on several plats at the station are given and the 

 com{)osition of corn stover is discussed. Shredded corn stover and cotton-seed hulls 

 fed ad liliittim with a uniform grain ration were compared with 2 lots of 4 cows each 

 in an experiment lasting 31 days. Detailed data for the experiment are given. On 

 the corn stover ration milk was produced at a cost of 6.84 cts. per gallon and on the 

 cotton-seed hull ration at a cost of 7.14 cts. per gallon. "Definite conclusions can 

 not be drawn from this experiment, on account of the limited time during which it 

 was carried on, but it shows that the corn stover has a greater feeding value than 

 cotton-seed hulls." 



The total decrease in the yield of milk of 7 cows for the 5 days following dehorn- 

 ing as compared with the 5 days preceding was 16.1 per cent. Three of the cows 

 were not much affected by dehorning. 



Jersey cattle in Jutland, J. Larsen ( Ugeskr. Landm., 47 (1902), Xo. 2, j:>p. 

 17-19). — In comparing the production of Jutland and Jersey cows in a Danish herd, 

 the latter proved superior to the domestic breed as regards the quality of the milk 

 and the amount fif butter fat prochiced. The Jersey cows produced at the rate of 

 over 2 lbs. more butter per 100 lbs. of food units eaten than the Jutland cows. — 



F. W. WOLL. 



The variation in the composition of cows' milk, H. Ingle ( Tran.f. HigJdand 

 and Agr. Sac. Scotland, 5. ner., 14 {1902), pp. 284-313, dgms. 13).— The investigations 

 with cows on dry feed reported last year (E. S. R., 13, p. 279) were repeated with 

 cows on pasture. During 2 periods of 20 days each in August and Septemljer over 

 1,600 samples of milk from 19 cows were collected and analyzed. The results are 

 presented by means of diagrams, and are discussed in connection with the data pre- 

 viously reported as regards the effect of period of lactation, season of the year, time 

 and manner of milking, and food upon the composition of the milk. The quality of 

 the milk is shown to decrease for the first 2 or 3 months of the lactation period and 

 then to increase steadily as lactation advances. The average fat content of some 700 

 samples of milk obtained in March and April, 1900, was 3.86 per cent. In the pres- 

 ent investigations samples analyzed during the first period (August 1 to August 20) 

 showed 3.40 per cent of fat, and samples analyzed during the second period (August 

 20 to September 9) showed 3.46 per cent of fat — showing a lower fat content in the 

 fall. As in the earlier investigations the cows were milked at 6 a. m. and 3 p. m. 

 During the first period the average fat content of the morning's milk was 2.72 per 

 cent and the evening's milk 4.09 per cent. During the second period the percent- 

 ages were 2.83 and 4.09, respectively. Analyses of the mixed morning's milk sliowed 

 also that the fat content may often fall below 3 per cent in the late summer 

 or autumn where the intervals between milkings are unequal. The cows were 

 divided into 4 lots which were fed uniformly during the first period a grain ration of 

 2 lbs. of decorticated cotton-seed cake. During the second jDeriod lot 1 was fed the 

 same ration, lot 2, 4 lbs. of Chicago gluten meal, lot 3, 6 lbs. of corn meal, and lot 4, 

 28 lbs. of fresh brewers' grains. The yield of milk of the 4 lots during the second 

 period, as compared with the first, decreased, respectively, 9.44, 5.69, 6.49, and 12 per 



