| Postnatal differentiation of sexual preference in male pigs. | |
| | |
MedLine Citation:
|
PMID: 6885004 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Attraction to sexually mature males and the immobilization response were evaluated after postpubertal estrogen treatment of ovariectomized females and of males castrated within 48 hr after birth or at 4 or 8 months of age. The time spent in the end of an evaluation pen which housed a mature intact male, the proportion of animals that showed the immobilization response, and the latency to onset and the duration of this response were similar in ovariectomized females and males castrated within 48 hr after birth. These two groups spent more time in the male end of the evaluation pen as opposed to the opposite end which housed an ovariectomized female, showed a shorter latency to the onset of the immobilization response, and expressed this response for a greater number of days than males castrated either at 4 or 8 months of age. Males castrated at 4 or 8 months did not show a strong preference for either a mature male or an ovariectomized female. The immobilization response in estrogen-treated males castrated at 4 or 8 months of age diminished as these animals became older. On the basis of the observations made in this study, attraction to a mature, intact male is a sexually dimorphic behavioral trait in pigs, and defeminization of this trait in male pigs is associated with the pubertal increase in testicular steroid secretion. Presently, pigs are the only mammalian species in which a role has been identified for pubertal, testicular steroid secretion in the defeminization process. |
| | |
Authors:
|
J J Ford |
Related Documents
:
|
18067464 - Fact or wishful thinking? biased expectations in "i think i look better when i'm tanned". 1409944 - Cohabitation with a sterile male facilitates the development of retrieval behavior in n... 17414274 - What is the incidence of hypertelorism in filipino frontonasal encephalocele patients? 7419134 - The alpha female: observations on captive pigtail monkeys. 2394644 - Aging effect on oxygen consumption of respiratory muscles in humans. 23541124 - Normative data of body fat mass and its distribution as assessed by dxa in indian adult... |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Hormones and behavior Volume: 17 ISSN: 0018-506X ISO Abbreviation: Horm Behav Publication Date: 1983 Jun |
Date Detail:
|
Created Date: 1983-10-08 Completed Date: 1983-10-08 Revised Date: 2006-11-15 |
Medline Journal Info:
|
Nlm Unique ID: 0217764 Medline TA: Horm Behav Country: UNITED STATES |
Other Details:
|
Languages: eng Pagination: 152-62 Citation Subset: IM |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Animals Castration Estradiol / pharmacology Female Male Sex Differentiation* / drug effects Sexual Behavior, Animal* / drug effects Swine |
| Chemical | |
Reg. No./Substance:
|
50-28-2/Estradiol |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Localized amyloid of the ureter--case report and review of the literature.
Next Document: Inhibition of voluntary activity by growth hormone.