Abstract
AimsThe aim of this study was to assess a phage‐displayed MilA protein of Myc. bovis in an indirect ELISA for the detection of Myc. bovis antibodies in milk samples.Methods and ResultsThe desired sequence of milA gene was synthesized and cloned into pCANTAB‐F12 phagemid vector. The expression of the MilA on the phage surface was confirmed by Western blotting. The recombinant phage was used in the development of an indirect ELISA to detect Myc. bovis antibodies in milk samples. There was a significant agreement between the results of phage‐based ELISA and recombinant GST‐MilA ELISA for the detection of Myc. bovis antibodies in milk samples.ConclusionsThe inexpensive and convenient phage‐based ELISA can be used instead of recombinant protein/peptide ELISA as an initial screening of Myc. bovis‐associated mastitis.Significance and Impact of StudyMastitis associated with Myc. bovis is a continuous and serious problem in the dairy industry. Sero‐monitoring of Myc. bovis infection cases are one of the key factors for surveillance of the infections in dairy farms. Despite the existence of some commercially serological assays for Myc. bovis antibodies, they have some limitations regarding their sensitivity and availability. The development of accurate diagnosis tools could contribute to control programmes of Myc. bovis‐associated mastitis in the dairy herds.
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