Quantification of Protective Antibody Vaccine-Elicited in Chickens against Infectious Bursal Disease Virus
作者机构：Department of MicrobiologyFaculty of Veterinary and Animal ScienceHajee Mohammad Danesh Science and Technology UniversityDinajpur-5200Bangladesh Department of Microbiology&HygieneBangladesh Agricultural UniversityMymensingh-2202Bangladesh Department of Veterinary and Animal SciencesUniversity of RajshahiRajsahahi-6205Bangladesh
出 版 物：《Journal of Agricultural Science and Technology(A)》 (农业科学与技术（A）)
年 卷 期：2019年第9卷第1期
页 面：38-45页
学科分类：09[农学]
主 题：Infectious bursal disease(IBD) broiler breeder of strain Cobb-500 antibody titer maternally derived antibody(MDA) indirect ELISA
摘 要：A study on infectious bursal disease virus(IBDV)on chickens of Cobb-500 strain broiler breed at Thakurgaon district of Bangladesh was *** protective antibody was measured on one day old chicks(DOC)and post-vaccinated(PV)flocks up to 75 weeks by indirect enzyme linked-immunosorbent assay(I-ELISA).The assays have included five flocks with vaccination historic against IBDV contained 45,000 birds with age ranging from DOC to 75 weeks,just before *** derived antibody(MDA)mean titer(MT)ranged from 3,395 to 5,*** antibody from serum samples(N=92 per flock)were titer tested by I-ELISA at age 14 d,5,8,23,50 and 75 weeks of each vaccinated *** titer level gradually decreased before *** done by intermediate plus vaccine resulting titers level was increased and stayed at the same *** antibody MT at the 14th day was 500,which supported Deventer *** protective antibody MT was declined at growing,laying,mid laying and last stage of laying *** MDA titer was enough in offspring that could protect birds easily.
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