184 



THE STOCKFEEDER'S COMPANION 



the fat-globules have to overcome in passing down the 

 milk-ducts into the milk-cistern in the udder. The 

 thinner part (serum) therefore finds its way into the 

 milk-cistern with less difficulty. 



Dr Babcock (Wisconsin) found, from several trials, 

 that quick milking produced 2 to 13 per cent, more 

 milk which was a tenth richer in butter-fat than that 

 produced by slow milking. This superiority was con- 

 tinued for several months, until the milk-yield of the 

 cow naturally began to decline. 



7. Morning and Evening Milk. Generally speaking, 

 the morning milk is larger in quantity and poorer in 

 fat than evening milk. This may be partly due to the 

 vitality of the cow's system being lower during the 

 night than day time, more especially when the days 

 are short, but the chief cause is undoubtedly the 

 unequal periods between the times of milking. This 

 point is dealt with in Dr Lauder's report (Edinburgh 

 and East of Scotland College of Agriculture), Bulletin 

 XL, from which the following table is taken : 



Effect of Milking at Equal and Unequal Intervals on 

 Composition of Milk. 



