Effects of isolation, handling and restraint on growth of rats. 1979

E H Sobel, and K A Zuppinger, and E E Joss

The effects of 3 environmental conditions on physical growth and skeletal maturation were assessed in pair-fed rats. Rats subjected to restraint from ages 28 to 80 days weighed less and were shorter than pair-fed like-sex controls; skeletal maturation was unaffected. The observations cannot be attributed to handling, as those animals were heavier than their controls, or to isolation, which was found to be without effect on any of the measurements. The adverse effects of restraint on physical growth are attributed to increased adrenal cortical activity, reflected in increased adrenal weight.

UI MeSH Term Description Entries
D008297 Male Males
D012149 Restraint, Physical Use of a device for the purpose of controlling movement of all or part of the body. Splinting and casting are FRACTURE FIXATION. Immobilization, Physical,Physical Restraint,Physical Immobilization,Physical Restraints,Restraints, Physical
D005260 Female Females
D006128 Growth Gradual increase in the number, the size, and the complexity of cells of an individual. Growth generally results in increase in ORGAN WEIGHT; BODY WEIGHT; and BODY HEIGHT.
D006234 Handling, Psychological Physical manipulation of animals and humans to induce a behavioral or other psychological reaction. In experimental psychology, the animal is handled to induce a stress situation or to study the effects of "gentling" or "mothering". Handling (Psychology),Handling, Psychology,Psychological Handling,Psychology Handling
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012934 Social Isolation The separation of individuals or groups resulting in the lack of or minimizing of social contact and/or communication. This separation may be accomplished by physical separation, by social barriers and by psychological mechanisms. In the latter, there may be interaction but no real communication. Isolation, Social,Social Exclusion,Exclusion, Social,Social Exclusions
D051381 Rats The common name for the genus Rattus. Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus

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