Calf and dam characteristics and calf transport age affect immunoglobulin titers and hematological parameters of veal calves.

Autor:	Marcato F; Adaptation Physiology Group, Wageningen University & Research, PO Box 338, 6700 AH Wageningen, the Netherlands; Wageningen Livestock Research, Wageningen University & Research, PO Box 338, 6700 AH Wageningen, the Netherlands. Electronic address: francesca.marcato@wur.nl., van den Brand H; Adaptation Physiology Group, Wageningen University & Research, PO Box 338, 6700 AH Wageningen, the Netherlands., Kemp B; Adaptation Physiology Group, Wageningen University & Research, PO Box 338, 6700 AH Wageningen, the Netherlands., Engel B; Biometris, Wageningen University & Research, PO Box 16, 6700 AA Wageningen, the Netherlands., Schnabel SK; Biometris, Wageningen University & Research, PO Box 16, 6700 AA Wageningen, the Netherlands., Jansen CA; Cell Biology and Immunology Group, Wageningen University & Research, PO Box 338, 6700 AH Wageningen, the Netherlands., Rutten VPMG; Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, PO Box 80165, 3508 TD Utrecht, the Netherlands; Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria, P/Bag X04, Onderstepoort 0110, Republic of South Africa., Koets AP; Wageningen Bioveterinary Research, Wageningen University & Research, PO Box 65, 8200 AB Lelystad, the Netherlands; Department of Population Health Sciences, Faculty of Veterinary Medicine, Utrecht University, PO Box 80163, 3508 TD Utrecht, the Netherlands., Hoorweg FA; Wageningen Livestock Research, Wageningen University & Research, PO Box 338, 6700 AH Wageningen, the Netherlands., de Vries-Reilingh G; Adaptation Physiology Group, Wageningen University & Research, PO Box 338, 6700 AH Wageningen, the Netherlands., Wulansari A; Adaptation Physiology Group, Wageningen University & Research, PO Box 338, 6700 AH Wageningen, the Netherlands., Wolthuis-Fillerup M; Wageningen Livestock Research, Wageningen University & Research, PO Box 338, 6700 AH Wageningen, the Netherlands., van Reenen K; Wageningen Livestock Research, Wageningen University & Research, PO Box 338, 6700 AH Wageningen, the Netherlands.
Jazyk:	angličtina
Zdroj:	Journal of dairy science [J Dairy Sci] 2022 Feb; Vol. 105 (2), pp. 1432-1451. Date of Electronic Publication: 2021 Nov 19.
DOI:	10.3168/jds.2021-20636
Abstrakt:	This study aimed to investigate effects of transport age of calves (14 vs. 28 d), and of calf and dam characteristics, on immunoglobulin titers and hematological variables of veal calves. Calves (n = 683) were transported to a veal farm at 14 or 28 d of age. Natural antibodies N-IgG, N-IgM, and N-IgA against phosphorylcholine conjugated to bovine serum albumin (PC-BSA) were measured in serum of the dams 1 wk before calving and in first colostrum. These antibodies were also measured in serum of calves 1 wk after birth, 1 d before transport, and in wk 2 and 10 posttransport at the veal farm. Hematological variables were assessed in calves 1 d before transport and in wk 2 posttransport. One day before transport, titers of N-IgG, N-IgM, N-IgA, and neutrophil counts were higher, and lymphocyte counts were lower in 14-d-old calves compared with 28-d-old calves. In wk 2 at the veal farm, calves transported at 14 d of age had higher N-IgG titers and neutrophil counts, but lower N-IgM and N-IgA titers, and lymphocyte counts than calves transported at 28 d. In wk 1 and 1 d before transport, N-Ig in calves were positively related to N-Ig in colostrum. In wk 2 and 10 at the veal farm, N-IgG in calves was positively related to N-IgG in colostrum. The N-IgG titers in calves at the dairy farm were negatively related to the likelihood of being individually treated with antibiotics or other medicines at the veal farm. Our results suggest that calves transported to the veal farm at 28 d of age showed a more advanced development of their adaptive immunity than calves transported at 14 d of age. Quality of colostrum might have long-term consequences for N-IgG titers and immunity in veal calves. (The Authors. Published by Elsevier Inc. and Fass Inc. on behalf of the American Dairy Science Association®. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).)
Databáze:	MEDLINE
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