Effect of hot environment on cell surface differentiation antigens of porcine peripheral lymphocytes from sows and litters

1. 1.|Rectal temperatures were higher in sows maintained for 28 days following farrowing in a cycling hot environment (27–32°C, 50–90% RH) than in sows in a cool environment (21°C, 50% RH). Rectal temperatures in the litters were similar regardless of environment. 2. 2.|In sows in the hot environmen...

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Bibliographic Details
Published inJournal of thermal biology Vol. 19; no. 3; pp. 163 - 169
Main Authors Becker, B.A., Misfeldt, M.L.
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 01.06.1994
Elsevier
Subjects
antigens
Biological and medical sciences
cell surface
Environment
Fundamental and applied biological sciences. Psychology
heat
lymphocytes
swine
Thermoregulation. Hibernation. Estivation. Ecophysiology and environmental effects
Vertebrates: anatomy and physiology, studies on body, several organs or systems
heat
swine
cell surface
Environment
lymphocytes
antigens
Antigen
Vertebrata
Temperature
Mammalia
Leukocyte
Body temperature
T-Lymphocyte
Artiodactyla
Physical environment
Weight gain
Ungulata
Pig
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Summary:1. 1.|Rectal temperatures were higher in sows maintained for 28 days following farrowing in a cycling hot environment (27–32°C, 50–90% RH) than in sows in a cool environment (21°C, 50% RH). Rectal temperatures in the litters were similar regardless of environment. 2. 2.|In sows in the hot environment, the percentages of CD2+ and CD8+ peripheral T lymphocytes and cells expressing SLA class II molecules were reduced, while the percentages of CD4+ cells were not affected. 3. 3.|Overall percentages of expression of CD2+ and CD8+ T cells and SLA class II molecules were lower in the litters than in the sows, with expression increasing with age but not significantly affected by temperature.
ISSN:0306-4565
1879-0992
DOI:10.1016/0306-4565(94)90027-2