Effects of constant and cycling hot environments on mitogen-stimulated proliferation of peripheral blood lymphocytes from sows and litters

1. 1. Lymphocytes from sows maintained in a constant hot environment (32°C) showed reduced proliferative responses to mitogens PHA ( P < 0.02) and PWM ( P < 0.01) in comparison to sown maintained in a constant cool environment (21°C). In the piglets the hot constant temperature slightly reduce...

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Bibliographic Details
Published in:Journal of thermal biology 1995-12, Vol.20 (6), p.485-488
Main Authors: Becker, B.A., Misfeldt, M.L.
Format: Article
Language:English
Subjects:
Hot environments
lymphocytes
mitogen-induced proliferation
swine
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Summary:1. 1. Lymphocytes from sows maintained in a constant hot environment (32°C) showed reduced proliferative responses to mitogens PHA ( P < 0.02) and PWM ( P < 0.01) in comparison to sown maintained in a constant cool environment (21°C). In the piglets the hot constant temperature slightly reduced ( P < 0.05) proliferative responses of lymphocytes to PHA. 2. 2. No significant effects of a cycling hot environment (27–32°C) were found for any proliferative responses of lymphocytes from sows and litters. 3. 3. In the constant hot environment, serum cortisol concentrations were significantly reduced in the sows ( P < 0.0001) while no differences in serum cortisol concentrations were found in the litters.
ISSN:0306-4565
1879-0992
DOI:10.1016/0306-4565(95)00010-T