Journal Paper

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Journal: آرشیو رازی
Year:1390 | Volume:66 | Issue:1
Start Page:25 | End Page:28

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Title

STUDY ON DURATION OF MATERNAL ANTIBODIES IN CALVES AGAINST BOVINE HERPES VIRUS TYPE 1 (BHV-1)

Pages

 Start Page 25 | End Page 28

Abstract

 In order to estimate the mean of maternal antibody in CALVES against BHV-1 (BOVINE HERPES VIRUS type 1), this study was carried out in a population of CALVES from non-vaccinated dairy cattle at 2 livestock in Qazvin province. One hundred thirteen sera out of 512 were collected from 1-4 months unvaccinated CALVES. We used Blocking –Percentage of MATERNAL ANTIBODIES against BHV-1, which obtained by BLOCKING ELISA assay in 1-4 months CALVES sera. The result of one way analysis of variance determined that there was a significant difference among blocking percentage of MATERNAL ANTIBODIES against BHV-1 in 1-4 months (P<0.001). Comparing percentage of mean titer indicated a decreasing trend with respect to age i.e. from 84.4 (a 95% CI: 78.1- 90.6) in 1 month to 57.6 (a 95% CI: 47.1- 68.2) in 4 months, which was near to 55 as cut off point. Tukey's method showed a significant difference between the Blocking percent of mean titer between 1 and 4 (P<0.001), 2 and 4 (P=0.034) months. Chi-square test for independency showed a significant association between age and seroactivity (P=0.005).

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