THE FREEZING POINT OF MILK PRODUCED IN FOUR MARKETS IN TENNESSEE

Abstract

Summary Seasonal differences occur in the freezing point depression (Δ) of milk produced in Tennessee, A larger Δ occurred in the colder months of the year than in the summer and early fall of 1963 and 1964. Weather conditions were of more significance in the fall and spring than in winter and summer. High temperatures and high vapor pressures were associated with smaller Δ's. The Δ between herds was statistically different, but this difference could not be attributed to the breed of cow in the herd. Producers whose milk had a small average Δ had, in many cases, a great deal of variation in their Δ's. The relationship between quantity of milk sold per producer and Δ is, at most, very slight.