کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2461533 1555032 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Chronobiological studies of chicken IgY: Monitoring of infradian, circadian and ultradian rhythms of IgY in blood and yolk of chickens
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم دامی و جانورشناسی
پیش نمایش صفحه اول مقاله
Chronobiological studies of chicken IgY: Monitoring of infradian, circadian and ultradian rhythms of IgY in blood and yolk of chickens
چکیده انگلیسی


• Four chickens were reared under same condition to evaluate the ryhthmicity of IgY.
• Biological oscillations of IgY in yolk and serum was determined over a 60 day period.
• There is a circaseptan rhythm in yolk IgY and circaquattran rhythm in serum IgY.
• Circadian rhythm was superimposed by an ultradian rhythm.
• Further investigations should be conducted in order to find physiological background of IgY rhythm.

IgY is the functional equivalent of mammalian IgG found in birds, reptiles and amphibians. Many of its biological aspects have been explored with different approaches. In order to evaluate the rhythmicity of serum and yolk IgY, four chickens were examined and reared under the same conditions. To monitor biological oscillations of IgY in yolk and serum, the eggs and blood samples were collected over a 60 day period and the rhythm of yolk and serum IgY was determined by direct-ELISA. Results indicated that, there is a significant circaseptan rhythm in yolk IgY and circaquattran rhythm in serum IgY. The serum IgY concentration reached a peak in the morning, decreased to a minimum during the daytime and increased again at night revealing a significant circadian rhythm was superimposed by an ultradian rhythm. These data are suited to address the controversies concerning the IgY concentration in egg yolk and blood of laying hens. In addition, this study raised new questions, if the different rhythms in yolk and serum are concerned.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Veterinary Immunology and Immunopathology - Volume 160, Issues 3–4, 15 August 2014, Pages 266–272
نویسندگان
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