Prevalence and risk factors associated with failure of transfer of passive immunity in spring born beef suckler calves in Great Britain

Autor: Alexander Corbishley, Rachel Bragg, G Russell, Alastair Macrae, Samantha Lycett, Elizabeth Burrough
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Bragg, R, Macrae, A, Lycett, S, Burrough, E, Russell, G & Corbishley, A 2020, ' Prevalence and risk factors associated with failure of transfer of passive immunity in spring born beef suckler calves in Great Britain ', Preventive Veterinary Medicine, vol. 181, 105059 . https://doi.org/10.1016/j.prevetmed.2020.105059
DOI: 10.1016/j.prevetmed.2020.105059
Popis: Calves are born agammaglobulinemic and are dependent on the intake and uptake of immunoglobulins from colostrum for protection against infectious diseases in early life. Failure to absorb sufficient immunoglobulins in the correct timeframe after birth is termed failure of transfer of passive immunity (FPT). FPT has been defined as a serum IgG concentration ([sIgG]) of under 10 g/L in dairy calves, as [sIgG] over 10g/L has been associated with a decreased risk of mortality and morbidity. In beef calves, a [sIgG] of under 24 g/L has also been shown to be predictive of increased morbidity and mortality. Currently there is limited data relating to the prevalence and risk factors of FPT in the beef sector. This cross-sectional study quantified [sIgG] in 1131 blood samples taken from beef suckler calves born on 84 farms in Great Britain in spring 2018 (mean 13.5 calves sampled per farm, range 3-22). Age of calves at sampling ranged from 1-13 days. The estimated prevalence of calves with [sIgG]
Databáze: OpenAIRE