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Related Experiment Videos

Milk immunoglobulins and complement factors.

H Korhonen1, P Marnila, H S Gill

  • 1Agricultural Research Centre of Finland, Food Research, FIN-31600 Jokioinen, Finland. hannu.j.korhonen@mtt.fi

The British Journal of Nutrition
|March 10, 2001
PubMed
Summary

Bovine colostrum provides crucial passive immunity to newborn calves through immunoglobulins (Ig) and the complement system. These components offer antimicrobial effects and support immune development, highlighting their potential for functional foods.

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Area of Science:

  • Veterinary Immunology
  • Food Science

Background:

  • Colostrum is vital for newborn calf health, providing passive immunity.
  • Bovine colostrum contains high concentrations of immunoglobulins (IgG, IgM, IgA) and a complement system crucial for antimicrobial defense.
  • Immunoglobulin levels in colostrum are significantly higher than in mature milk.

Purpose of the Study:

  • To review the characteristics of bovine immunoglobulins and the complement system.
  • To explore the potential of these components as functional food ingredients for health promotion.

Main Methods:

  • Literature review of studies on bovine colostrum, immunoglobulins, and complement system activity.
  • Analysis of immunoglobulin classes and concentrations in bovine colostrum and milk.

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Main Results:

  • Bovine colostrum is rich in IgG1, IgM, IgA, and IgG2, providing passive immunity and antimicrobial effects.
  • The complement system in bovine colostrum exhibits haemolytic and bactericidal activity.
  • Immunoglobulin concentrations decline rapidly after birth but IgG1 remains dominant.

Conclusions:

  • Bovine immunoglobulins and the complement system are key for neonatal calf immunity.
  • These components possess characteristics suitable for development into health-promoting functional foods.