78 Report of Department of Ammal Husbandry of the 



Table VI.— Littlk Change in Amount of Nutkients, with a Rkduction 



OF Protein. 



Average of 43 rec- 

 ords froui cows 

 a V eriif; i II y,' 5 

 yrs. old and 6.8 

 mouths in milk. 



P 



Befoi-e 



After 



O 00 



o 



Before 

 After 



Per 1000 Lbs. Live Weight. 



Total 

 digest- 

 ible or- 

 ganic 

 matter. 



Lbs. 

 15.5 



15.5 



Digest- 

 ible 

 pro- 

 tein. 



Lbs. 

 2.33 



1.83 



Fuel 

 value. 



Cal. 

 31,193 



31,372 



Nutri- 

 tive 

 ratio. 



1 :6.6 

 1:8.4 



Average Per 

 Day pee Cow. 



Milk 

 yield. 



Lbs. 



21.1 

 20.1 



Fat In 

 milk. 



Lbs. 

 .86 



.83 



Fat In 

 milk. 



Per ct. 

 4.1 



4.1 



Dry 



matter In 



food for 



one lb. 



of milk 



solids. 



7,b,s. 



7.9 

 8.0 



Digest- 

 ible dry 

 matter In 

 food for 

 each lb. 

 of milk 

 solids. 



Lbs. 

 5.2 



5.5 



THE AMOUNT OF NUTRIEiNTS BUT LITTLE CHANGED WHEN 



ABOVE 15.5 LBS. 



By grouping without regard to the amount of protein those 

 records in which the amount of nutrients, when above 15.5 lbs. 

 per 1000 lbs. live weight, was but little changed, the following 

 data are found. There was, in a majority of cases and on the 

 average, considerable reduction in the amount of protein. The 

 diminution in milk flow was at about twice the usual rate. The 

 gain in live weight was considerably greater after the change 

 than before. 



