Using a Colostrometer

colostrometerColostrometers measure the specific gravity of colostrum and estimates of immunoglobulin (IgG) levels present in colostrum. When using a colostrometer, it is important to follow these guidelines:

  • Allow the sample to cool to room temperature.
  • Fill the cylinder to the top. Overflow the cylinder to make sure all foam and scum are removed from the sample.
  • Float the colostrometer in the colostrum.
  • If the result is green, go ahead and feed to newborn calves.

Colostrometers can be purchased from or by calling 541-268-2004.

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