1922.] 



Silage for Milk Production. 



37 



Period. 



Marcli 20th, 

 21st, 22nd 



March 23rd 

 to 26th 



March 27tli, 



Results. 



3 days 



4 days 



-Yield of Milk for Eight Cows. 



Brookhouse. 

 lb. 



555J Preliminary 558^ 



Colo mend y . 

 lb. 



Renmrlcfi. 



jviarcn zan, n 

 April 2nd ... # 



Api 

 Apr 



710^ Transition J70f 

 1,221 



> 14 (lavs 



April 3rd, i 

 .ril yth ...3 

 April 10th, ) 

 April 16th .. ] ^ 

 April 17th, 

 April 23rd 



V 14 days 

 April 24th, i 

 April 30th ... ) 



l,243n 



V Roots 

 1,187) 



1.188 J 



V Silage 

 1,166 ) 



22^ lb. in favour 

 of roots. 



5 lb. in favour 

 of silage. 



143 11). in favour 

 of silage. 



170 lb. in favour 

 of silage. 



Taking the weekly yield of milk there is very little difference 

 between the silage and the roots-fed cows during the first period 

 of the experiment, but during the second period the results are 

 decidedly in favour of the silage ration, there being a difference 

 of 313 lb. of milk in favour of the silage during the last fourteen 

 days. 



Average Daily Milk Yield at each Centre. 





Brookhouse. 



Colomendji . 



Period. 



Average Daily Yirld, 



Average Daily Yield. 





{8 Cows). 





{8 Cows). 





Mar. 20-26 (7 days) 



Preliminary 



lb. 



Preliminary 



lb. 



period 



181 



period 



190 



Mar.27-Apr.9 (14 days) 



Silage 



172 



Roots and Hay 



173 



Apr. 10-16 (7 days) 



Transition 



153 



Transition 



168 



Apr. 17-30 (14 days) 



Roots and Hay 



146 



Silage 



168 



As the experiment proceeded there was a tendency for the 

 yield to drop in both cases, but, during the last fourteen days, 

 while the yield at Brookhouse (on roots and hay) went on decreas- 

 ing, the yield at Colomendy (on silage) was on the whole well 

 maintained, and it is not unreasonable to suppose that the silage 

 was responsible for this " stiffening " in the yield. 



We are indebted to Mr. Arthur Amos of the School of Agri- 

 culture, Cambridge, for information regarding similar experi- 

 ments, the hnes of which were followed so far as circumstances 

 allowed. 



