VALUE OF MILK SOLIDS POOR AND RICH IN FAT. 109 
TABLE 39. 
Theoretical value in roo pounds of total solids in milk. 








Ps VALUE OF NON-NITROGENOUS MATERIAL. 
aa Botts 
Z oa elia| ° a c 
QUALITY OF MILK AS TO Ok Sa oo yam on 
TOTAL SOLIDS. oS otga pl A 
Oo 5 Oofo§ a = us 
aH val evil i= am og 
A, On S) a 
3 Baer AL 3 Bu 
nei) a me ° 
= e) ° a oe 
adj 1S) 
Percent. Lbs. Lbs. Calories. Lbs. 
Ope ae - : 2 : 20.5 TOCA 202 , 368 904.3 
1 - - : - 25.6 Aes 206 , 874 96.1 
13, > - - “ 25.4 74.6 211,208 97.6 
14, - - AO Pe ins 25.5 74.6 217,580 99.6 
15; = - = - “ 26.6 922 221,540 100.0 
LOYen- - - - - 26.8 jeret 224,466 TOle2 


of varying quality. ‘There is a vague, but more or less gen- 
eral opinion among farmers that the calf and perhaps other 
young animals will make more satisfactory growth when fed 
whole milk relatively poor in fat. City ordinances and state 
laws on the contrary discriminate, but not intentionally, against 
milks low in per cent. of solids and fat. The demand of the 
retail trade is for milk showing a large percentage of cream. 
It has been urged by some that the distributor should be called 
upon to certify to the quality of milk offered for sale. If such 
a method should be adopted, a knowledge of the food value of 
milks of different quality would be desirable. 
The following experiments were conducted for the purpose 
of showing the relative food value of solids from milk poor and 
‘rich in fat content when fed to young growing animals: 
Table 40 shows gains made for four calves fed new milk. 
Calf No. 3, fed 53 days, required 1.33 pounds of total solids 
from milk testing 5.1 per cent., against 1.16 pounds for Calf 
No. 1, fed milk testing 3.27 per cent. fat, for 63 days. Calves 
Nos. 2 and 4, each fed 30 days, required respectively .91 
pounds of total solids from 3.27 per cent. milk and 1.03 pounds 
of total solids from 4.6 per cent. milk. These calves were not 
fed for veal, but were designed for dairy calves, and were fed 
accordingly. 
