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Encyclopedia of reproduction
Ernst Knobil,J. D. Neill +1 more
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The article was published on 1998-01-01 and is currently open access. It has received 702 citations till now.read more
Citations
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Journal ArticleDOI
Evaluation of boar sperm maturation after co-incubation with caput, corpus and cauda epididymal cultures [corrected].
Judit Bassols,E. Kádár,M.D. Briz,Elisabeth Pinart,Sílvia Sancho,N. Garcia-Gil,E. Badia,A. Pruneda,Eva Bussalleu,Marc Yeste,I Casas,Jean-Louis Dacheux,Sergi Bonet +12 more
TL;DR: It was shown that epithelial cell monolayers create a suitable microenvironment for the survival of proximal caput sperm and the maintenance of sperm motility over a 72 h period.
Journal ArticleDOI
Effects of thymulin and GnRH on the release of gonadotropins by in vitro pituitary cells obtained from rats in each day of estrous cycle.
Lorena Hinojosa,Lorena García,Roberto Domínguez,Marta C. Romano,Pablo Damián-Matsumura,Lourdes Castillo,Patricia Rosas +6 more
TL;DR: Thymulin plays a dual role in the release of gonadotropins, and that its effects depend on the hormonal status of the donor's pituitary, as well as a directly proportional relation between progesterone serum levels and the effects of thymulin on FSH release was observed.
Book ChapterDOI
The Optimal Number of Fathers
TL;DR: This presumption of monandrous females coupled with males who ranged from monogamous to polygynous shaped the authors' reconstructions of early hominid mating systems.
Book ChapterDOI
An Analysis of the Accuracy of the Presentation of the Human Penis in Anatomical Source Materials
TL;DR: It is evident that the penis is misrepresented in the medical literature used in medical schools, and this study indicates that students are being misinformed about fundamental anatomy.
Journal ArticleDOI
Reproductive biology and energy allocation of the sea star Cosmasterias lurida (Echinodermata: Asteroidea) from the Beagle Channel, Tierra del Fuego, Argentina
TL;DR: The population of C. lurida from Beagle Channel suggests an annual reproductive cycle with two maturation events and the influence of water temperature on maturation and releasing of gametes, with a greater energy investment in females than in males.
References
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Book ChapterDOI
Seasonal breeding:nature's contraceptive.
G A Lincoln,Roger V. Short +1 more
TL;DR: The seasonal cycle highlights the seasonal changes in daylight length, rutting behavior, testicular diameter, sexual skin flush, and concentrations of plasma follicle-stimulating hormone, prolactin, and testosterone in a group of rams throughout the year.
Journal ArticleDOI
The physiological responses of anovulatory ewes to the introduction of rams: a review.
TL;DR: Ewes of many breeds can be stimulated to ovulate by the reintroduction of rams and appear to be effected both through a delay in the onset of the LH surge and through a direct action of progesterone on the ovary.
Journal ArticleDOI
Factors affecting the secretion of luteinizing hormone in the ewe.
TL;DR: LH is secreted as discrete pulses throughout all stages of the reproductive cycle of the ewe, including pre‐pubertal, seasonal and lactational anoestrus, and the luteal and follicular phases of the oestrous cycle.
Nutritional influences on reproduction in mature male sheep and goats
TL;DR: In this article, it was shown that nutritional signals exert powerful effects on the reproductive system of mature male ruminants, and the responses are partly independent of changes in gonadotrophin secretion.
Journal Article
Nutritional influences on reproduction in mature male sheep and goats.
TL;DR: In this article, it was shown that nutritional signals exert powerful effects on the reproductive system of mature male ruminants, and the responses are partly independent of changes in gonadotrophin secretion.