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Related Experiment Videos

Colostrum intake by dairy calves.

R Wesselink1, K J Stafford, D J Mellor

  • 1Institute of Food, Nutrition and Human Health, Massey University, Private Bag 11222, Palmerston North, New Zealand.

New Zealand Veterinary Journal
|July 21, 2005
PubMed
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Approximately 45% of dairy calves have low immunoglobulin levels, indicating insufficient colostrum intake. Early separation and feeding after 6 hours ensures adequate immunoglobulin transfer for calf health.

Area of Science:

  • Veterinary immunology
  • Neonatal calf care

Background:

  • Colostrum intake is crucial for passive immunity in newborn calves.
  • Low serum immunoglobulin levels in calves are associated with increased disease risk.
  • Identifying factors influencing colostrum intake is essential for calf health management.

Purpose of the Study:

  • To identify clinical parameters for detecting calves with low serum immunoglobulin levels.
  • To investigate the impact of cow and calf behavior on colostrum consumption.

Main Methods:

  • Serum gamma glutamyltransferase (GGT) activity was measured in 74 dairy calves.
  • Physical and behavioral assessments were conducted on calves and their dams.
  • Calf-dam interactions and colostrum intake were observed and recorded.

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Main Results:

  • 45% of calves exhibited low serum GGT activity, indicative of inadequate immunoglobulin levels.
  • Physical and behavioral characteristics did not reliably distinguish calves with low immunoglobulin levels.
  • While calves spent up to 24.9 hours with dams, 33% did not suck, and 79% of those that did, suck within 6 hours of birth.

Conclusions:

  • A significant proportion of dairy calves may not consume sufficient colostrum, even with extended dam contact.
  • Calf separation from the dam after 6 hours and subsequent colostrum feeding is recommended to ensure adequate passive immunity.
  • Early identification and intervention are key to improving immunoglobulin levels and overall calf health.