Acta Vet. Brno 2010, 79: 105-112

https://doi.org/10.2754/avb201079010105

Determination of Haptoglobin in Bovine Serum using Polyclonal and Monoclonal Anti-human Haptoglobin Antibodies

Paulina Jawor1, Tadeusz Stefaniak1, Iwona Kątnik-Prastowska2

1Department of Immunology, Pathophysiology and Veterinary Prevention, Wroclaw University of Environmental and Life Sciences, Wrocław, Poland
2Department of Chemistry and Immunochemistry, Wroclaw Medical University, Wrocław, Poland

Received February 6, 2009
Accepted September 8, 2009

Two ELISA procedures to determine haptoglobin (Hp) in bovine serum were developed. Equine haemoglobin was used as the solid phase. Self-developed goat polyclonal antibody (variant I) and monoclonal antibody (variant II) raised against human Hp were used. The results were compared with the guaiacol method. High correlation was found (r = 0.96 and r = 0.90, respectively) based on the results of 548 bovine serum samples, of which 357 were from clinically healthy cows and 191 from cows and calves monitored during treatment for the most common diseases. The Hp detection limit of ELISA using polyclonal Ab was 0.1 mg/l and using MoAb 0.21 mg/l. The addition of 2% PEG 6000 at the antibody-binding steps enabled major shortening of the incubation periods. The relatively short time, low cost of reagents, and high correlation with the reference method support the use of these ELISA variants in bovine diagnostics.

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