The influence of stress on early pregnancy in the pig
Date
1996-04Author
Einarsson, Stig
Madej, Andrzej
Tsuma, Victor
Type
ArticleLanguage
enMetadata
Show full item recordAbstract
The manifestations of stress, defined as disturbances of homeostasis, are commonly linked to enhanced activity of the hypothalamo-pituitary-adrenal (HPA) axis and the activation of the sympathetic adreno-medullary (SA) system. Activation of the HPA system results in the secretion of peptides from the hypothalamus, principally corticotropin releasing hormone (CRH), which stimulate the release of β-endorphin and adrenocorticotropic hormone (ACTH) from the hypothalamus and pituitary. ACTH induces the secretion of corticosteroids from the adrenal cortex, which can be seen in pigs exposed to acute physical and/or psychological stressors. Stress is considered to be associated with a decrease in reproductive functions. The causes of extreme stress may include new social grouping, food deprivation and poor thermoregulation. A brief review is given on current knowledge of these stressors and their impact on early pregnancy in the pig.
URI
http://www.animalreproductionscience.com/article/0378-4320%2896%2901516-3/abstracthttp://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/36002
Citation
Animal Reproduction Science Volume 42, Issue 1 , Pages 165-172, April 1996Publisher
Univesity of Nairobi Department of Clinical studies