effect of lighting program on cellular and humoral immune responses of arian broilers

نویسندگان

مرضیه رحمانی

دانش آموخته ارشد محمدامیر کریمی ترشیز

استادیار تربیت مدرس رسول واعظ ترشیزی

دانشیار دانشگاه تربیت مدرس

چکیده

this study was conducted to compare the effects of different illumination programs on the cellular and humoral immune system using 320 one day–old male broilers (arian 386) in a completely randomized design of 8 replications (10 birds each). the four assayed lighting schedules were comprised of: 1- continuous lighting (control), 2- decrease then sudden increase of lighting, 3- decreasing-gradual increasing lighting and 4- intermittent lighting (1 light: 3 dark periods). humoral immune responses were assessed following immunization by sheep red blood cells (srbc) and newcastle virus (nd) vaccine. increase in skin thickness due to dinitrochlorobenzen (dncb) contact was utilized to assess the cellular immune response: total antibody against srbc was lower in the sudden increase in lighting program as compared with the other programs (p

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عنوان ژورنال:
علوم دامی ایران

جلد ۴۳، شماره ۳، صفحات ۲۹۷-۳۰۵

کلمات کلیدی
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