ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2013, Vol. 44 ›› Issue (9): 1499-1503.doi: 10.11843/j.issn.0366-6964.2013.09.024

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Comparison of ELISA and IFA in the Detection of the J Subgroup Avian Leukosis Virus

WANG Xin1, CUI Zhi-zhong2, GONG Jian-sen1, GAO Ming-yan1, FAN Jian-hua1,YU Yan1, ZHU Jing1, XU Bu1*   

  1. (1. Jiangsu Institute of Poultry Science, Yangzhou 225125, China; 2. College of Veterinary Medicine, Shandong Agricultural University, Taian 271018, China)
  • Received:2013-03-22 Online:2013-09-23 Published:2013-09-23

Abstract:

For comparing ELISA and IFA in the detection of J subgroup avian leukosis virus, five different dilution of NX0101 TCID50 virus were inoculated to DF1 cell and cultured. In six different stages (1, 2, 3, 5, 7 and 9 days culturation), ELISA was applied to detect P27 antigen within supernatant and IFA was conducted to detect the infected cells respectively. Using more than 101.625TCID50 of the inoculation dose, IFA achieves identification of all the infected cells at 2 days and 3 days post inoculation, but the results from ELISA is relatively lag of 2-4 days for confirmation. Inoculating less than 101.625TCID50 of virus, IFA detect successfully the infected cells while ELISA still not detect by 7th day. The results suggest that IFA is more accurate and effective than commercial ELISA kit, ELISA have obvious hysteresis in comparison to IFA.

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