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ELISA法评价荷斯坦犊牛对G6P[1]轮状病毒的被动免疫转移

IF 3.8 3区农林科学 Q1 VETERINARY SCIENCES

Pakistan Veterinary Journal Pub Date : 2020-01-01 DOI:10.29261/pakvetj/2020.031

T. G. Rocha

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引用次数: 1

摘要

预防犊牛轮状病毒A组(RVA)腹泻的主要策略是为犊牛接种疫苗，以增强犊牛对该病毒的特异性免疫球蛋白的被动免疫转移。本研究旨在评估胎次对接种或未接种的荷斯坦奶牛血清和初乳以及犊牛血清中免疫球蛋白G (IgG)、IgG1和IgM滴度的影响。根据胎次和疫苗接种情况(初产/多产;接种疫苗/未接种疫苗)将奶牛及其犊牛分为不同的组，并采集奶牛的血清和初乳样本以及犊牛的血清和粪便样本。分娩影响初产奶牛的IgG和IgG1滴度，多产奶牛的IgG和IgG1滴度较高，而IgM滴度受疫苗接种的影响。未接种疫苗的犊牛所生的犊牛血清IgG和IgG1滴度最低。11头犊牛出现RVA腹泻，分别在接种疫苗和未接种疫苗的犊牛中发现G6P[11]和G6P[5]基因型，接种疫苗可延长犊牛的体液免疫，提高初乳质量，应成为犊牛的首要关注问题(C) 2020 PVJ

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Evaluation of Passive Immunity Transfer against G6P[1] Rotavirus in Holstein Calves by ELISA

The main strategy to prevent bovine rotavirus group A (RVA) diarrhea in calves is to vaccinate late-term dams aiming to enhance passive immunity transfer of specific immunoglobulins against the virus This study aimed to evaluate influence of parity in titers of immunoglobulin G (IgG), IgG1 and IgM in serum and colostrum of vaccinated or unvaccinated Holstein cows and in serum of its calves, associated with monitoring for RVA diarrhea in calves Cows and its calves were allotted into groups according to parity and vaccination (primiparous/multiparous;vaccinated/unvaccinated) and serum and colostrum samples of cows were taken as well as serum and fecal samples of its calves Parturition influenced colostral titers of IgG and IgG1, which were higher in multiparous cows, whilst IgM titers were influenced by vaccination, being higher in colostrum of vaccinated dams Lowest serum titers of IgG and IgG1 were found in calves born to unvaccinated primiparous dams Eleven calves presented RVA diarrhea, and genotypes G6P[11] and G6P[5] were found in the vaccinated and unvaccinated herds, respectively Vaccination of dams prolongs humoral immunity in calves and enhances colostrum quality and should be a primary concern in primiparous cows (C) 2020 PVJ All rights reserved

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来源期刊

Pakistan Veterinary Journal

Pakistan Veterinary Journal 兽医-兽医学

CiteScore

4.20

自引率

13.00%

发文量

0

审稿时长

4-8 weeks

期刊介绍： The Pakistan Veterinary Journal (Pak Vet J), a quarterly publication, is being published regularly since 1981 by the Faculty of Veterinary Science, University of Agriculture, Faisalabad, Pakistan. It publishes original research manuscripts and review articles on health and diseases of animals including its various aspects like pathology, microbiology, pharmacology, parasitology and its treatment. The “Pak Vet J” (www.pvj.com.pk) is included in Science Citation Index Expended and has got 1.217 impact factor in JCR 2017. Among Veterinary Science Journals of the world (136), “Pak Vet J” has been i) ranked at 75th position and ii) placed Q2 in Quartile in Category. The journal is read, abstracted and indexed internationally.

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