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Influence of Pasteurella multocida and high and low environmental temperatures on adrenals and bursa of Fabricius in turkeys

Journal Article · · Avian Dis.; (United States)
DOI:https://doi.org/10.2307/1589961· OSTI ID:5344818
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The morphologic changes in the adrenals and bursa of Fabricius were evaluated from turkeys inoculated with Pasteurella multocida either in the palatine air spaces or via drinking water and maintained at high (33.4-37.4 C), low (2.6-5.3 C), and moderate (19.8-22.4 C) temperatures in temperature-controlled chambers. There was a slight hyperplasia of the adrenal cortical cells and a hypertrophy of the nuclei in the uninoculated turkeys maintained at both high and low temperatures, but these changes were more marked in turkeys maintained at low temperatures. Regardless of the temperature to which the turkeys were exposed, there was an increase in adrenal weight, hyperplasia of the cortical cells, hypertrophy of the nuclei of the cortical cells, and depletion of lipid in the cortical cells in the turkeys that became depressed after inoculation with P. multocida. In the uninoculated turkeys exposed to high temperatures there was a reduction in the weight of the bursa of Fabricius, atrophy of the follicles, and a reduction in the number of lymphocytes within the follicle, which did not occur in the bursae from uninoculated turkeys maintained at low temperatures. In the turkeys inoculated with P. multocida, there was a marked reduction in bursal weight, atrophy of the follicles, and reduction in the number of lymphocytes within the follicles.
OSTI ID:
5344818
Journal Information:
Avian Dis.; (United States), Journal Name: Avian Dis.; (United States) Vol. 24:4; ISSN AVDIA
Country of Publication:
United States
Language:
English

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Related Subjects

550700 -- Microbiology
550800 -- Morphology
550900* -- Pathology
59 BASIC BIOLOGICAL SCIENCES
ADRENAL GLANDS
ANIMAL CELLS
ANIMALS
ATROPHY
BACTERIAL DISEASES
BIOLOGICAL MATERIALS
BIRDS
BLOOD
BLOOD CELLS
BODY
BODY FLUIDS
CHOLERA
CONNECTIVE TISSUE CELLS
DISEASES
ENDOCRINE GLANDS
FOWL
GLANDS
HYPERTROPHY
INFECTIOUS DISEASES
INOCULATION
LEUKOCYTES
LYMPHATIC SYSTEM
LYMPHOCYTES
MATERIALS
MORPHOLOGICAL CHANGES
MORPHOLOGY
ORGANS
PATHOGENESIS
PATHOLOGICAL CHANGES
PATHOLOGY
SOMATIC CELLS
TEMPERATURE EFFECTS
VERTEBRATES