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Updated: Jun 20, 2026
Loop-mediated Isothermal Amplification (LAMP) Assays for the Species-specific Detection of Eimeria that Infect Chickens
Published on: February 20, 2015
Development and evaluation of a loop-mediated isothermal amplification assay for rapid detection of chicken anaemia
C-H Huang1, G-H Lai1, M-S Lee2
1Institute of Biochemistry, College of life Science, National Chung Hsing University, Taichung, Taiwan.
Aim:
Chicken anaemia virus (CAV) causes an economically important viral disease in chickens worldwide. The main aim of this study was to establish a rapid, sensitive and specific loop-mediated isothermal amplification (LAMP) assay for detecting CAV infection.
Methods And Results:
A set of four specific LAMP primers were designed based on the nucleotide sequence of the CAV VP2 gene, which encodes a nonstructural protein. These were used for the amplification of a specific target region of the VP2 gene. LAMP amplicons were successfully amplified and detected by DNA electrophoresis and by direct naked eye SYBR Green I visualization. A sensitivity test systematically demonstrated that the LAMP assay was superior to a conventional PCR assay with a minimum concentration limit of 100 fg compared to 10 ng for the conventional PCR. The specificity of the LAMP assay for CAV detection is consistent with conventional PCR. Using this established LAMP assay, infected and uninfected clinical samples obtained from an experimental farm were fully verified.
Conclusions:
A novel nucleic acid-based approach of LAMP assay was successfully developed for detecting CAV infection.
Significance And Impact Of The Study:
In this study, these results indicate that the developed LAMP assay herein for CAV detection is a time-effective, simple, sensitive and specific test that can be used as an alternative approach in the future for large-scaled diagnosis on the farm of CAV infection.
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