Consensus recommendations on calf- and herd-level passive immunity in dairy calves in the United States

Consensus recommendations on calf- and herd-level passive immunity in dairy calves in the United States

Passive immunity in calves is evaluated or quantified by measuring serum or plasma IgG or serum total protein within the first 7 d of age. While these measurements inform about circulating concentrations of this important protein, they are also a proxy for evaluating all of the additional benefits o...

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Veröffentlicht in:Journal of dairy science 2020-08, Vol.103 (8), p.7611-7624
Hauptverfasser: Lombard, J., Urie, N., Garry, F., Godden, S., Quigley, J., Earleywine, T., McGuirk, S., Moore, D., Branan, M., Chamorro, M., Smith, G., Shivley, C., Catherman, D., Haines, D., Heinrichs, A.J., James, R., Maas, J., Sterner, K.
Format: Artikel
Sprache:eng
Schlagworte:
Animals
Animals, Newborn - immunology
Cattle - immunology
colostrum
Colostrum - immunology
Consensus
Female
Immunity, Herd
Immunoglobulin G - blood
Male
morbidity
passive immunity
Pregnancy
United States
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Zusammenfassung:Passive immunity in calves is evaluated or quantified by measuring serum or plasma IgG or serum total protein within the first 7 d of age. While these measurements inform about circulating concentrations of this important protein, they are also a proxy for evaluating all of the additional benefits of colostral ingestion. The current individual calf standard for categorizing dairy calves with successful passive transfer or failure of passive transfer of immunity are based on serum IgG concentrations of ≥10 and
ISSN:0022-0302
1525-3198
DOI:10.3168/jds.2019-17955