Variation in the freezing point of genuine farm milks in Queensland

Abstract

An average freezing point value of -0·548°C was determined for 1,775 herd and individual cows' milks examined over a period of 18 months. The individual cows' milks varied from -0·509°C to -0·578°C, while bulked morning and evening herd milks ranged from -0·536° to -0·560°C.
Variations in freezing points occurred with season of the year, morning and evening milkings, stage of lactation, and breed of cow. A trend for individual cows to give similar results at a particular milking was observ1ed.