Prevalence of failure of passive transfer of immunity in dairy calves in a Mediterranean pasture-based production system of the south-west region of Western Australia

J.W. Aleri; J. Gogoi-Tiwari; H.K. Tiwari; A.D. Fisher; F.W. Waichigo; I.D. Robertson

doi:10.1016/j.rvsc.2021.07.020

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Prevalence of failure of passive transfer of immunity in dairy calves in a Mediterranean pasture-based production system of the south-west region of Western Australia

Journal article

Peer reviewed

Prevalence of failure of passive transfer of immunity in dairy calves in a Mediterranean pasture-based production system of the south-west region of Western Australia

J.W. Aleri, J. Gogoi-Tiwari, H.K. Tiwari, A.D. Fisher, F.W. Waichigo and I.D. Robertson

Research in Veterinary Science, Vol.139, pp.121-126

2021

DOI: https://doi.org/10.1016/j.rvsc.2021.07.020

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Abstract

The objective of this study was to estimate the prevalence of failure of passive transfer of immunity (FPTI) in dairy calves in the south-west region of Western Australia herds. A cross-sectional study was conducted in 26/140 dairy farms and serum samples were collected from 495 healthy 2–7 day-old calves. A radial immunodiffusion (RID) test was used to determine the concentration of serum IgG and calves were classified as having FPTI if the IgG concentration was less than 10 mg/mL. Estimation of FPTI was also assessed using two indirect methods using serum total protein (STP) and a brix refractometer. The estimated prevalence of FPTI was found to be 8.7% (43 calves out of 495) by RID with the concentration of IgG ranging between 0 and 6.2 mg/ml. The STP was found to vary from 46 to 96 mg/mL and using a cut-off point of 55 mg/mL the calf level prevalence was estimated as 7.1% (33 calves). Using the brix refractometer, the prevalence was found to be 13.1% (65 calves) with the refractometer reading ranging 6–14% of IgG. In the present study there was no association between calf-level factors (age, sex and breed) and FPTI. There was a higher correlation of the RID test results and the STP results compared to the RID and brix refractometer results. It is concluded that the prevalence of FPTI in dairy calves in the south-west region of Western Australia is low (8.7%) and the brix refractometer is not a reliable indirect method for determining passive transfer of immunity to calves.

Details

Title: Prevalence of failure of passive transfer of immunity in dairy calves in a Mediterranean pasture-based production system of the south-west region of Western Australia
Authors/Creators: J.W. Aleri (Author/Creator) - Murdoch University
J. Gogoi-Tiwari (Author/Creator) - Murdoch University
H.K. Tiwari (Author/Creator) - The University of Sydney
A.D. Fisher (Author/Creator) - The University of Melbourne
F.W. Waichigo (Author/Creator) - Brunswick (United States)
I.D. Robertson (Author/Creator) - Huazhong Agricultural University
Publication Details: Research in Veterinary Science, Vol.139, pp.121-126
Publisher: Elsevier
Identifiers: 991005542353807891
Copyright: © 2021 Elsevier Ltd
Murdoch Affiliation: School of Veterinary Medicine
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 3 Agriculture, Environment & Ecology; 3.51 Dairy & Animal Sciences; 3.51.2057 Colostrum
Web Of Science research areas: Veterinary Sciences
ESI research areas: Plant & Animal Science