Der heutige Stand der Forschungen über das Oestrushormon und die Nymphomanie des Rindes

Frei, W.; Lutz, Eckart Conrad

doi:10.1007/bf01894162

Cited by 9 publications

(4 citation statements)

References 29 publications

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“…This would indicate that this type of sexual behavior is not peculiar to the guinea pig. It is also possible that the prolonged heat in cattle which is associated with the failure of the mature follicle to rupture (8,9,15) is comparable with the split oestrus.…”

Section: Cycle-lengthmentioning

confidence: 99%

Sexual behavior and sexual receptivity in the female guinea pig.

Young¹,

Dempsey²,

Hagquist³

et al. 1939

Journal of Comparative Psychology

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The behavior displayed shortly before and during the time the female guinea pig is sexually receptive has been described (17, ! 18). Most important for the investigator is the straightening of the back and the elevation of the pudenda when the female is stroked on the back or mounted by a male because the period during which this response can be elicited is the period of sexual receptivity. Its length varies from 1 to more than 30 hours and averages 8 to 9 hours. Entirely different from the copulatory response, but usually associated with it, is the display of malelike mounting activity. This behavior is shown most commonly about the beginning of heat and its extent varies greatly. However, no correlation exists between the frequency of mounting and the length of heat. The latter may be unaccompanied by mounting activity, or cyclic periods of mounting activity may occur in the absence of heat. Obviously, therefore, mounting activity cannot be relied on for the identification of heat. For this purpose and for estimation of the time of ovulation which occurs near the end of heat, dependence must be placed on the copulatory response.The reliability of the response is indicated by diverse observations and experiments. During more than 2000 experiences in mating guinea pigs, only rarely if ever did a female from which 1 This investigation was supported by a grant from the Committee for Research in Problems of Sex, National Research Council. 1 References to the observations of other investigators are cited in this article. 49 50 YOUNG, DEMPSEY, HAGQUIST AND BOLING * We are deeply indebted to Messrs. Richard J. Blandau, Vincent J. Collins and Dr. Roy Hertz for assistance in observing the animals. Likewise we wish to thank Dr. Erwin Schwenk of the Schering Corporation for his generous contributions of Progynon-B, Oreton, Oreton-B and Proluton, and Dr. Oliver Kamm of the Parke, Davis Company for his kindness in supplying Theelin.

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Section: Cycle-lengthmentioning

confidence: 99%

Sexual behavior and sexual receptivity in the female guinea pig.

Young¹,

Dempsey²,

Hagquist³

et al. 1939

Journal of Comparative Psychology

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“…Nymphomania in the cow is associated with prolonged occurrence of the type of vaginal smear characteristic of metoestrum (Frei and Lutz, 1929), which is the phase of keratinisation and desquamation in the cow as in the ewe.…”

Section: Discussionmentioning

confidence: 99%

“…Superficial consideration suggests that desquamation in the ewe may be due rather to withdrawal of the oestrogenic hormone than to its presence, but this conclusion is inept, for undoubtedly in some cases desquamation commences shortly before ovulation, when the concentration of oestrin in the blood is, presumably, at its highest. Nymphomania in the cow is associated with prolonged occurrence of the type of vaginal smear characteristic of metoestrum (Frei and Lutz, 1929), which is the phase of keratinisation and desquamation in the cow as in the ewe.…”

Section: Discussionmentioning

confidence: 99%

I.—Studies on the Physiology of Reproduction in the Ewe. Part I. The Symptoms, Periodicity, and Duration of Œstrus. Part II. Changes in the Vagina and Cervix. Part III. Gross Changes in the Ovaries

Grant

1934

Trans. R. Soc. Edinb.

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This and the two following papers constitute part of the report upon a detailed investigation of the normal reproductive cycle in the ewe. Although the reproductive processes of mammals have been studied intensively during the past decade, it is to the small “laboratory” mammals that most workers have devoted their attention: little is known regarding reproduction in Ungulates except in relation to the cow, which has been studied by Hammond (1927) and others.Certain aspects of reproduction in the ewe were studied by Marshall (1903) and Assheton (1906). During the last three years many minor papers on this subject have appeared but no comprehensive account is yet available, while, as will be shown in the following pages, many of the conclusions reached by previous workers were based upon examination of insufficient material.It is hoped that this investigation will form the basis for fuller experimental study of reproductive phenomena in the ewe, particularly as they concern breeding practice, and that it will, stimulating interest in the sex physiology of the Ungulates, assist in laying the foundations for a more thorough understanding of the physiological mechanisms underlying reproduction in this group.

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“…This is so generally the rule that extention of these periods is considered abnormal and the term "nymphomania" applied to such cases. Cystic follicles secreting theelin for unusually long periods probably offer a satisfactory explanation (see page 404, also Courrier, 1925;Cotte and Pallot, 1928;Frei and Lutz, 1929). In the primate menstrual cycle, however, there seems to be no restricted period of intense sexual activity.…”

Section: Restriction Of the Period Of Mating Instinctsmentioning

confidence: 99%

Ovarian follicular hormone, theelin; Animal reactions.

Allen¹

1934

Sex and Internal Secretions: A Survey of Recent Research.

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Der heutige Stand der Forschungen über das Oestrushormon und die Nymphomanie des Rindes

Cited by 9 publications

References 29 publications

Sexual behavior and sexual receptivity in the female guinea pig.

Sexual behavior and sexual receptivity in the female guinea pig.

I.—Studies on the Physiology of Reproduction in the Ewe. Part I. The Symptoms, Periodicity, and Duration of Œstrus. Part II. Changes in the Vagina and Cervix. Part III. Gross Changes in the Ovaries

Ovarian follicular hormone, theelin; Animal reactions.

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