56 SILAGE STUDIES 



Group J. 



Mosby, 19 days, average yield, 18.3 lbs. 



Sanford, 22 days, average yield, 17 lbs.; average shrinkage, 1.3 lbs. 

 Learning, 26 days, average yield, 16.1 lbs.; average shrinkage, .9 lbs. 

 Sanford, 13 days, average yield, 16. i lbs.; average shrinkage, nothing. 



Group N. 



Learning, 25 days, average yield, 35.7 lbs. 



Sanford, 21 days, average yield, 33.1 lbs.; average shrinkage, 2.6 lbs 



The results with the different groups are very shnilar to 

 those of the previous year. In passing from Mosby silage to 

 Sanford there is slightly less shrinkage than when the cows 

 passed from Learning to Sanford, but there is little choice in 

 the two dent varieties this season. Comparing Sanford and 

 Leaming, it must be seen that Sanford was a little superior. 

 Nevertheless the changes from Sanford to Leaming were ear- 

 lier in the periods of lactation of the animals than the changes 

 from Leaming to Sanford, and in the more productive periods 

 of lactation the rate of daily shrinkage is higher than in the 

 less productive stages. A simultaneous feeding of the differ- 

 ent varieties would be more precise, but hardly more definite. 

 A comparison of the chemical composition of the varieties of 

 silage is given in the table opposite. 



The average composition of the. three varieties of silage 

 varies a little. The Sanford is a little the best while the 

 Mosby's Prolific is the poorest. 



The mixture of corn and soy beans and corn and clover are 

 interesting. The former mixture consisted of two parts of 

 corn and one part of soy beans, cut and packed together. The 

 latter mixture was approximately equal parts of corn and 

 second-crop clover. Such mixtures improve the silage by 

 increasing the protein and lessening the necessity for grain. In 

 the case of soy beans, it is practically necessary to store them 

 in the silo, but it is not to be recommended for clover, when 

 the season will permit thorough drying. 



