Document Detail


The influence of stress on the adrenals of the springbok (Antidorcas marsupialis).
MedLine Citation:
PMID:  8691417     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The absolute and relative adrenal mass as well as histological sections of the adrenals of springbok (Antidorcas marsupialis) (n = 76; 36 ewes and 39 rams) were studied over a period of 12 months. No significant difference was found in the absolute mass of the adrenals of rams and ewes. However, a significant difference (p < 0.01) was found in the relative masses (adrenal mass in terms of carcass mass), in that relative masses in males were greater than females. The zona fasciculata was found to be enlarged during the dry season (February and March), and showed increased activity in both sexes. The zona fasciculata of the ewes showed an additional increase in activity during September (late pregnancy) and October (lactation). In rams increased activity of the zona fasciculata was seen during the mating season in April and May. It appears that stressful events during reproduction and during the dry season cause an increase in adrenal mass and activity.
Authors:
A W Van Rijswijk; F Vorster
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of the South African Veterinary Association     Volume:  66     ISSN:  1019-9128     ISO Abbreviation:  J S Afr Vet Assoc     Publication Date:  1995 Dec 
Date Detail:
Created Date:  1996-08-29     Completed Date:  1996-08-29     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  7503122     Medline TA:  J S Afr Vet Assoc     Country:  SOUTH AFRICA    
Other Details:
Languages:  eng     Pagination:  251-3     Citation Subset:  IM    
Affiliation:
Department of Human & Animal Physiology, University of Stellenbosch, Republic of South Africa.
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MeSH Terms
Descriptor/Qualifier:
Adrenal Glands / anatomy & histology*,  pathology
Age Factors
Animal Nutritional Physiological Phenomena
Animals
Animals, Wild / anatomy & histology
Body Weight
Female
Lactation
Male
Organ Size
Pregnancy
Ruminants* / anatomy & histology
Seasons
Sex Factors
South Africa
Stress, Physiological / pathology,  veterinary*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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