RESEARCH NOTE - EVALUATION OF HUMORAL AND DELAYED-HYPERSENSITIVITY RESPONSES IN COCKERELS REARED UNDER CONSTANT LIGHT OR A 12 HOUR LIGHT - 12 HOUR DARK PHOTOPERIOD

被引：34

作者：

KIRBY, JD ^{[1
]}

FROMAN, DP ^{[1
]}

机构：

[1] OREGON STATE UNIV,DEPT ANIM SCI,CORVALLIS,OR 97331

来源：

POULTRY SCIENCE | 1991年 / 70卷 / 11期

关键词：

CHICKEN; PHOTOPERIOD; IMMUNE RESPONSE; CIRCADIAN RHYTHM; SHEEP RED BLOOD CELLS;

D O I：

10.3382/ps.0702375

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

Immature cockerels were reared under constant light [24 h light (L):0 h dark (D)] or a 12L:12D photoperiod in order to evaluate the effect of constant light on immunoresponsiveness. At 10 wk of age males were immunized with SRBC, with reimmunization occurring either 3 or 8 wk later. Animals reared under constant light had lower (P < .05) anti-SRBC antibody titers than the 12L:12D males. Additionally, the pattern of the antibody response following secondary immunizations were different, with 24L:0D males exhibiting no increase in antibody titers between Days 3 and 9 postinjection. Delayed hypersensitivity responses of 24L:0D males were lower (P < .05) than those of 12- or 16-wk-old 12L:12D males. Taken together, these results suggest that circadian light:dark cycles may play a role in modulating the immune system.

引用

页码：2375 / 2378

页数：4

共 14 条

[1]

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