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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
Why are epididymal tumours so rare
TL;DR: The epididymis appears to prevent tumour initiation, foster tumour monitoring and destruction and avert proliferation and angiogenesis, and several anti-tumour mechanisms are those that maintain spermatozoa quiescent and immunologically silent, so the low incidence of cancer in the epidIDymis may be a consequence of its role in sperm maturation and storage.
Journal ArticleDOI
Detection of Drug-Exposed Newborns.
TL;DR: A discussion on approaches used to detect drug-exposed newborns, biological specimens that have been studied to identify and characterize drug exposures, example analytical methods for meconium and umbilical cord tissue as well as considerations surrounding the interpretation of results are provided.
Journal Article
Veterinary medicine books recommended for academic libraries.
TL;DR: This bibliography of in-print veterinary medical books published in English may be used as an acquisitions or evaluation tool for developing the monograph component of new veterinary medicine collections or existing science, technology, and medicine collections where veterinary medicine is in the scope of the collection.
Journal ArticleDOI
Endocrine differentiation of fetal ovaries and testes of the spotted hyena (Crocuta crocuta): timing of androgen-independent versus androgen-driven genital development.
Patience Browne,Ned J. Place,Justin D. Vidal,Ignacio T. Moore,Gerald R. Cunha,S. E. Glickman,Alan J Conley +6 more
TL;DR: The hypothesis that external genital morphology is probably androgen-independent initially, but that fetal testicular androgens modify the secondary, male-specific phallic form and accessory organs is supported.
Journal ArticleDOI
The metabolic cost of avian egg formation: possible impact of yolk precursor production?
TL;DR: Yolk precursor production in response to daily injections of 17β-estradiol (E2) in zebra finches resulted in a significant increase in plasma VTG and VLDL levels within the natural breeding range for the species, and RMR was measured during the period of active hepatic yolk precursorProduction.
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.