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Related Concept Videos

Active versus Passive Immunity01:31

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Immunity, along with the ability to limit pathogen growth to prevent significant body tissue damage, can be gained either by (1) actively developing an immune response within the individual after exposure to a pathogen or after getting vaccinated or (2) passively transferring immune components from an immune individual to one who is nonimmune. Both these forms of immunity can be found naturally and in medical practices.
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Related Experiment Video

Updated: Feb 2, 2026

Application of Consistent Massage-Like Perturbations on Mouse Calves and Monitoring the Resulting Intramuscular Pressure Changes
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Review: passive immunity in beef-suckler calves.

M McGee1, B Earley1

  • 1Teagasc,Animal & Grassland Research and Innovation Centre,Grange, Dunsany, Co. Meath, C15 PW93,Ireland.

Animal : an International Journal of Animal Bioscience
|November 22, 2018
PubMed
Summary
This summary is machine-generated.

Passive immunity in beef calves is crucial for health and farm economics. Colostrum volume, not concentration, primarily limits immunoglobulin mass, impacting calf health and requiring further research on testing accuracy.

Keywords:
beef calfbeef-suckler cowcolostrumhealthimmunoglobulins

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Area of Science:

  • Animal Science
  • Veterinary Medicine
  • Ruminant Health

Background:

  • Colostrum-derived passive immunity is vital for neonatal beef-suckler calf health, performance, and welfare.
  • Research on passive immunity in beef calves is less extensive compared to dairy calves.
  • This review synthesizes current knowledge and identifies research gaps concerning beef calf passive immunity.

Purpose of the Study:

  • To review and interpret published data on passive immunity in beef-suckler calves.
  • To identify factors influencing colostrum quality and quantity in beef cows.
  • To highlight areas requiring further investigation in beef calf passive immunity.

Main Methods:

  • Literature review and synthesis of published research on beef calf passive immunity.
  • Analysis of factors affecting colostrum immunoglobulin G1 (IgG1) transfer and concentration.
  • Examination of variables influencing calf passive immunity, including maternal factors and management practices.

Main Results:

  • Colostrum immunoglobulin mass in beef cows is primarily limited by colostrum volume, with beef × dairy cows producing higher yields.
  • Maternal nutrition during late gestation appears to have minimal impact on colostrum immunoglobulin concentration.
  • Factors like dystocia and delayed suckling negatively affect calf passive immunity; feeding 5% of birth weight in colostrum shortly after birth is recommended.
  • Calf passive immunity is generally higher in beef × dairy cows and lower in calves from primiparous dams.

Conclusions:

  • Colostrum volume is a key determinant of immunoglobulin mass for beef calves.
  • Accurate assessment of passive transfer failure (FPT) requires validated laboratory tests linked to health and performance outcomes.
  • Further research is needed on colostrum factors limiting passive immunity and on validating diagnostic tests for FPT in beef calves.