Decay of maternal antibodies in broiler chickens

Saad Gharaibeh, Kamel Mahmoud

Research output: Contribution to journalArticle

29 Scopus citations

Abstract

The objective of this study was to determine the decay rate of maternal antibodies against major broiler chicken pathogens. A total of 30 oneday- old broiler-chicks were obtained from a commercial hatchery and reared in isolation. These chicks were retrieved from a parent flock that received a routine vaccination program. Chicks were bled at hatch and sequentially thereafter every 5 d through 30 d of age. Maternal antibody titers were measured by ELISA for avian encephalomyelitis (AEV), avian influenza virus (AIV), chicken anemia virus (CAV), infectious bursal disease virus (IBDV), infectious bronchitis virus (IBV), infectious laryngotracheitis virus (ILTV), Mycoplasma gallisepticum (MG), Mycoplasma synoviae (MS), and reovirus (Reo). Maternal antibody titers for Newcastle disease virus (NDV) were measured using a hemagglutination inhibition test. Half-life estimates of maternal antibody titers were 5.3, 4.2, 7, 5.1, 3.9, 3.8, 4.9, 4.1, 6.3, and 4.7 d for AEV, AIV, CAV, IBDV, IBV, ILTV, MG, MS, NDV, and Reo, respectively. The statistical analysis revealed significant differences among halflives of maternal antibody titers against certain pathogens. Furthermore, all maternal antibody titers were depleted by 10 d of age except for IBDV.

Original languageEnglish (US)
Pages (from-to)2333-2336
Number of pages4
JournalPoultry science
Volume92
Issue number9
DOIs
StatePublished - Aug 1 2013

Keywords

  • Broiler
  • Decay
  • Half-life
  • Maternal antibody

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