
New Yorx AcricunruraL ExpertMmenr Sravion. ° 305 
CpmeEOLUCGINGAS ena. kU ee a. - . samme NOL: 6S 
Ce SEIT S22 EEE Rt SSO ise. 4 30 
Se eS DITOS peemeel (3 Geli cls sss. ele ee. . ol 3 70 
Far Lost anp RECOVERED IN BUTTER-MAKING. 
The data presented in-the tables below are derived from the 
monthly averages for the first period of lactation; that is, the 
first ten months of lactation. In the case of the fat in the cream, 
skim-milk, buttermilk and butter, the data are presented in two 
ways; first, the number of pounds of fat lost and recovered in 
100 pounds of milk is given; second, the proportion of fat in milk 
lost and recovered is given. For example, in one of the tables 
given below, under “Fat lost in skim-milk,” we see that the 
Guernseys lost 0.32 pounds of fat in the skim-milk from 100 
pounds of milk. The original amount of fat in 100 pounds of the 
Guernsey milk was 5.02 pounds. The amount of fat lost in the 
skim-milk is 0.32 pounds and this amount is 6.4 per cent. of 5.02, 
the amount of fat in the milk. Therefore, we say that the 
proportion or percentage of milk-fat lost in the skim-milk is 6.4 
per cent. Taking the Jersey skim-milk, the fat lost is 0.37 
pounds, while the milk contains 5.68 pounds of fat for each 
hundred pounds of milk. Here the actual loss of fat in the 
skim-milk from 100 pounds of milk is greater than in the case of 
the Guernseys, but the Jersey milk contains more fat to com- 
mence with, so that the proportion of fat lost is very nearly the 
same as in the case-of the Guernseys, being about 6.5 per cent. of 
the milk-fat. In the following tables it will be noticed in several 
cases, that while the actual loss of fat is greater in one case than 
in another, the proportion of fat lost is less in the case where the . 
actual loss is greater, since the amount of fat in the milk, at the 
start, is greater in the latter case. 
1. Pounds of fat in 100 ae of milk. 
BUGXBOYS 00. os sie ula aes ote one meee ee 5.68 
(2.) Guernseys ....-. i OA SEI 5.02 
(3.) Devons ............ een tee eee ee ett ttt t eee es 4.46 
STS... .. eek... ei. . 3.74 
OEEECAS. .. sce cs eh. ee es > aa 3.60 
(Gir Ayenores.........8 Bete VED co « sinlene Go ae 3.50 

