56 MASS. EXPERIMENT STATION BULLETIN 158. 



1 June !3 to July 4 for Cecile. 



Twenty-two days elapsed between the two parts of the experiment in 

 case of Cecile, as she could not be induced to eat the full ration of Molas- 

 sine (4 pounds), and it was finally found necessary to reduce the amount 

 to 3 pounds and add 1 pound of corn meal. The intermediate period for 

 the other cows was fourteen days. 



Care and Feeding of Animals. — They were 1-cept in roomy stalls, 

 carded dailj^ and turned into a protected barnyard during each pleasant 

 day. Thej' were fed twice daily; the haj^ was given some time before 

 milking in the afternoon, and the grain just before milking, wliile in the 

 morning the grain was given just before and the hay just after milking. 

 Water was supplied coiLstantlj' by aid of a self-watering device. 



Character and Co4 of Feeds. — The hay was an admixture of timothy, 

 red to]) and some closer. Unfortunately, it varied in texture, and during 

 part of tlie experiment it was rather coarse, which caused the animals to 

 leave small amounts on different days. The bran was of the spring 

 variety. The cotton.«eed meal was of fair quality, containing about 39 

 per cent, of })rotcin. The corn meal was local-ground and of good quaUtJ^ 

 The Mola.^siue meal has already been described. The market price of 

 the several feeds at the time of the experiment was as follows: — 



Per Ton. 



Hay .?23 00 



Corn meal 26 00 



Cottonseed meal, . . . . . . . . . . .34 00 



Wheat bran 27 00 



Molassine meal, . . . . . . . . . . . 40 00 



Weighing the Animals. — ^ Each cow was weighed for three consecutive 

 days at the beginning and end of each half of the trial, before the after- 

 noon feeding. 



Sampling Feeds and Milk. — The hay was sampled at tlie beginning, 

 middle and end of each half of the trial in the usual w^ay, as described in 

 other experiments of this character. The grains were sam.pled daily, and 

 the samples preser^•ed in glass-stoppered bottles and brought to the labo- 

 ratoiy at the end of each half of the trial for dry-matter detei-minations 

 and complete analyses. 



The milk of each cow was sampled daily for five consecutive days for 

 each week of the trial. The usual method of samphng was followed. 



