Recent publication on Diagnosis of Ostertagia infections in young cattle! 🐄 📄
12 Jul 2023
Review and Evaluation of Ostertagia ostertagi Antibody ELISA for Application on Serum Samples in First Season Grazing Calves
The O. ostertagi-Ab ELISA assay is widely used as a diagnostic tool for monitoring gastrointestinal (GI) nematodes using milk samples from adult dairy cows. This assay is potentially also useful to analyse serum samples from first-season grazing (FSG) calves, providing a more cost-effective and robust diagnostic technique than the current serum pepsinogen assay. However, a comprehensive evaluation of its use in serum samples from FSG calves has not yet been conducted.
In this study, we first reviewed the available scientific literature in which the O. ostertagi-Ab ELISA
was applied to serum samples from FSG calves. Then, a field study was conducted to compare results
from the O. ostertagi-Ab ELISA assay with a serum pepsinogen assay on a set of 230 serum samples
from 11 commercial dairy herds (seven in Belgium and four in Sweden).