Transfer of chicken immunoglobulin Y (IgY) from the hen to the chick
Author: Ulmer-Franco, Ana M.
Source: Avian Biology Research, Volume 5, Number 2, June 2012 , pp. 81-87(7)
Publisher: Science Reviews 2000 Ltd
Abstract:Chicks depend on maternal antibodies as the main source of passive natural humoral protection until they become immunocompetent. Immunoglobulin Y (IgY), the avian homologue of mammalian IgG is transferred from the circulation of the hen into the egg yolk and then absorbed by the embryo. In the post-hatching period, protein integrity within the yolk sac is critical for normal absorption of the yolk sac content and for IgY transfer to the circulation of the chick. Factors affecting transfer of IgY to the chick may threaten the chick's immune status and increase disease susceptibility during the early post-hatching period. Here we review basic concepts of IgY with special emphasis on the mechanisms of IgY transfer to egg yolk and yolk sac during embryonic development and first days post-hatching.
Document Type: Research Article
Publication date: June 1, 2012
Avian Biology Research, formerly Avian & Poultry Biology Reviews, has adopted a new and exciting vision for publication of ornithological research in the 21st Century.
This vision is based on two main concepts. First, the topics published by the journal will cover all aspects of ornithology. This will provide a forum for scientists to publish their work in a journal that will have a broad appeal. Second, the scope of the journal will expand to include reports of original research, letters, perspectives, news, diary and book reviews in addition to reviews. By considering a wide range of research fields for publication, Avian Biology Research provides a forum for people working in every field of ornithology.
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