Title:

Social stress impact on developmental stability of laboratory rat Rattus norvegicus

Creator:

Valetsky, A. V. ; Dmitrieva, I. L. ; Krushinskaya, N. L. ; Zakharov, V. M.

Place of publishing:

Białowieża

Date issued/created:

1997

Description:

Developmental stability of the progeny of pregnant female rats Rattus norvegicus Berkenhout, 1769 kept under different conditions was studied. In two experimental groups, females were exposed to social stress by keeping them in crowded cages at different stages of pregnancy, from the 1st to the 15th abd from 16th to the 21th days, respectively. In the control groups, pregnant females were kept under normal conditions. Fluctuating asymmetry of 20 skull characters (number of foramina for small blood vessels and nerves) was used as a measure of developmental stability. Variance of the difference in foramen number between the left and right sides of the skull (l-r) as well as mean number of asymmetrical traits per individual revealed an increase of fluctuating asymmetry in both experimental groups compared with the control group. These results imply the deterioration of developmental stability under impact of social stress.

Type of object:

Journal/Article

Subject and Keywords:

developmental stability ; fluctuating asymmetry ; incomplete ; laboratory ; non-metrical traits ; Rattus norvegicus ; social stress ; szczur wędrowny

Relation:

Acta Theriologica

Volume:

42

Issue:

Suppl. 4

Start page:

27

End page:

32

Resource type:

Text

Detailed Resource Type:

Article

Format:

application/pdf

Resource Identifier:

10.4098/AT.arch.97-43

Source:

click here to follow the link

Language:

eng ; Sum. eng.

Rights:

Rights Reserved - Free Access

Terms of use:

Copyright-protected material. May be used within the limits of statutory user freedoms

Digitizing institution:

Mammal Research Institute of the Polish Academy of Sciences

Original in:

Library of the Mammal Research Institute Polish Academy of Sciences

Projects co-financed by:

Programme Innovative Economy, 2010-2014, Priority Axis 2. R&D infrastructure ; European Union. European Regional Development Fund

Access:

Open