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How the Advance of the Period of Lactation Affects the Milk Flow

Department of Dairy Husbandry, University of Missouri, Columbia, Missouri

ABSTRACT

Data was presented showing the time of maximum milk production of Holstein-Friesian cows. It was suggested that the frequency of milking and the amount of milk produced are the most important factors governing the time of maximum production.

The percentage decline of milk secretion with the advance of the period of lactation was shown to be fairly constant. A slightly greater percentage decrease during the last two or three months of lactation was shown to be due to advanced pregnancy.