588 



EXPERIMENT STATION RECORD. 



The tables of composition do not indicate that the different rations 

 had any noticeable effect on the composition of the milk. The conclu- 

 sion is reached that both the dried and the ensiled diffusion residue 

 were more favorable to milk production than sugar beets. Making 

 allowance for the natural shrinkage in the yield, on the basis of the 

 first and fourth periods, it is stated that as a result of the substitution 

 of 4.4 kg. of dried diffusion residue in place of 27.5 kg. of sugar beets 

 the milk yield increased 0.953 kg., and of substituting 41.8 kg. of 

 ensiled diffusion residue for the above amount of beets it increased 

 1.7-51 kg. per cow (of 550 kg. live weight) without any particular 

 change in the quality of the milk. In the second and third periods 

 when diffusion residue was fed there was in general an increase in the 

 live weight as compared with the first and fourth. 



Experiments on the effect on milk production of some new 

 feeding stuffs, with special reference to the fat content, E. Ka^im 

 and W. Mintrop {Milch ZUj., 27 (1898), Xo. 33, pp. 513-519).— The 

 object of this experiment was not only to compare certain new feeding 

 stuffs, as cocoa-molasses, molasses-distillery-refuse, blood-molasses, and 

 corn bran, but also to study the effect on the yield and composition of 

 milk of rations furnishing different amounts of fat and protein. The 

 cocoa-molasses was prepared by mixing hot molasses with finely 

 ground cocoa shells. The molasses-distillery-refuse was the residue 

 from the manufacture of alcohol from beet molasses. The blood- 

 molasses was a mixture of blood, molasses, and refuse of cereals. 



The experiment began November 5, 1897, and closed May 8, 1898, the 

 time being divided into 10 periods of unequal duration, and the last 5 

 days of each period being considered. Five cows were used, but owing 

 to the condition of the cows, as subsequently developed, 2 had to be 

 discarded in making up the averages. A basal ration of hay, cut 

 straw, and sugar beets was fed throughout. The rations fed per 1,000 

 kg. live weight and the yield and fat content of the milk are shown in 

 the following table : 



Effect of different rations on milk production. 



Perio 



1 



2 

 3 



4 

 5 







7 

 8 

 9 

 10 



Food in addition to basal ration, per 1,000 

 kg. live weight. 



12 kg. malt sprouts 



12 kg. cocoa-molasses 



8 kg. cocoa-molasses and 3 kg. peanut cake 



8 kg. linseed cake 



8 kg. malt sprouts and 3 kg. linseed cake. 

 8 kg. malt sprouts, 3 kg. linseed cake, and 



2 kg. molasses-distillery-refuse 



12 kg. corn bran 



8 kg. corn bran and 3 kg. linseed cake 



8 kg. corn bran and 7 kg. blood-molasses . 

 12 kg. malt sprouts 



Aver- 

 age 

 vield 



o'f fat 

 per 

 1,000 



kg. live 

 weight. 



Kg. 



0.8176 

 .6993 

 .7809 

 . 7036 

 .6652 



.5929 

 . 5013 

 .5979 

 .6939 

 .5824 



