desjardins and bronson 1975 pdf

Desjardins And Bronson 1975 Pdf

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The role of pheromones and biostimulation in animal reproduction

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Adpatations for urinary marking in rodents: prepuce length and morphology.

By clicking register, I agree to your terms. All rights reserved. Design by w3layouts. Those pairs which demonstrated stable dominance-subordinate relationships served as experimental subjects, while a comparable group of singly housed rats served in an isolate control group. Activity of the reticuloendothelial system RES was measured, the rats sacrificed, and their adrenal weights recorded in an effort to determine the relative extent of stress associated with these experimental conditions. In general the greatest stress response was indicated among the dominant rats and the least amount of stress was found among the isolate reared subjects. The RES measure proved to be particularly sensitive to this effect, and discriminated among treatment groups quite as well as the more traditional adrenal weight index.

B Corresponding author. Email: decatanz mcmaster. Exposure to novel adult males and their urine can hasten the onset of sexual maturity in female mice. The present experiment was designed to determine whether preputial gland removal would influence the capacity of males to accelerate female sexual development, and to measure male urinary oestradiol and testosterone in the presence or absence of these glands. Juvenile females aged 28 days were housed for two weeks in isolation or underneath two outbred males that had undergone preputialectomy or sham surgery. Urine samples were collected non-invasively from males that were isolated or exposed to females, then assayed for oestradiol, testosterone and creatinine. Combined uterine and ovarian mass from females sacrificed at 43 days of age was increased by exposure to males, regardless of whether or not these males had been preputialectomised.

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Amoore et al., Bronson and Desjardins, Bronson F.H., Desjardins rachaeldohertyfoundation.orgating concentrations of FSH, LH, estradiol and progesterone associated.


Rapid deposition of subcutaneous areolar tissue in response to sexual stimulation in mice

Sex differences in energy allocation were studied in wild stock house mice Mus domesticus. Peripubertal animals of both sexes, either intact or gonadectomized, were subjected for 8 weeks to one of two feeding requirements by using a caging system in which a pellet dispenser was controlled by activity on a running wheel. Recently weaned animals were required to run vs or more wheel revolutions to obtain a pellet of food. At both feeding requirements, however, females exhibited more total locomotor activity and consumed more food than males, regardless of gonadectomy. Furthermore, at the revolution requirement we often observed extensive running activity beyond that needed to generate the amount of food actually eaten, especially among females.

Sex differences in energy allocation were studied in wild stock house mice Mus domesticus. Peripubertal animals of both sexes, either intact or gonadectomized, were subjected for 8 weeks to one of two feeding requirements by using a caging system in which a pellet dispenser was controlled by activity on a running wheel.

Rapid deposition of subcutaneous areolar tissue in response to sexual stimulation in mice

Skip to search form Skip to main content You are currently offline. Some features of the site may not work correctly. DOI: Maruniak and C. Desjardins and F. Maruniak , C. Desjardins , F.

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Bronson F.H., Desjardins rachaeldohertyfoundation.orgd hormones and aggressive behavior in Current Developments in Psychopharmacology, Spectrum, New York (), pp.


Thank you for visiting nature. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser or turn off compatibility mode in Internet Explorer. In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript. Many of the reproductive processes of house mice are regulated exteroceptively by social cues 1.

The role of pheromones and biostimulation in animal reproduction

Female mice that had been made estrous through hormone implantation excreted in their urine significantly enhanced levels of n-pentyl acetate, cis pentenyl acetate, p-toluidine, 2-heptanone, and 3 unsaturated ketones. The relationship of these volatiles to a signaling function of the estrous urine is postulated. This is a preview of subscription content, access via your institution. Rent this article via DeepDyve. Davies, V.

Adpatations for urinary marking in rodents: prepuce length and morphology.

Беккер оглянулся. Убийца целился, высунувшись из окна. Беккер вильнул в сторону, и тут же боковое зеркало превратилось в осколки.

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