CHAPTER V. 
ABNORMAL MILK. 
Colostrum Milk.—Colostrum is the milk yielded immediately 
after calving. As the time of calving approaches, a cow usually 
diminishes in her milk-producing capacity. Most cows become 
dry about two months previous to parturition. If they do not 
naturally stop giving milk, they should be dried up so as to have 
a seven week’s rest before calving. When the rest has been 
given, the cows yield, immediately after calving, milk which has 
a composition and characteristics different from those of normal 
milk. If the cow continues to give a copious flow of milk up to 
the time of calving and is not allowed any rest, the difference 
in the milk yielded before calving and after calving is compara- 
tively slight. 
The composition of colostrum varies considerably during the 
first three days after calving. According to Engling, as reported 
by Richmond, the composition is a follows: 
WeAb eric dicta tien leew Gch Geared aries 71.69% 
Hatscacatuerrisssaivenwhine atau 3.37 
ee ASEM Gps ave cetls deere eye 4.83 
Albuminoids | amen le soe alee adetees 15.85 
BUPA, veaqerea ae cos saweus sereeteowRe 2.48 
Aelis b.tkchoeanercesiaren Grime eeal 1.78 
Colostrum greatly changes in composition and appearance 
as it gradually assumes the characteristics of normal milk. It 
is at first reddish yellow in color, and has a viscous and slimy 
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