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Encyclopedia of reproduction

Ernst Knobil, +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.

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Citations
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Journal ArticleDOI

Effects of selected neuropeptides, mating status and castration on male reproductive tract movements and immunolocalization of neuropeptides in earwigs

TL;DR: Collectively, these experiments demonstrate that the male earwig reproductive system is an appropriate model for use in addressing sexual maturation and activities in male insects.
Journal ArticleDOI

Mapping the chemical and sequence space of the ShKT superfamily

TL;DR: This chemical space analysis should be useful as a guide to select sequences for functional studies and to gain insight into the evolution of these highly divergent sequences with an ancient conserved fold.
Journal ArticleDOI

Luteinizing hormone (LH) isoforms in ruminants: Characterization and physiological relevance

TL;DR: This review includes recent evidence concerning the distribution of LH isoforms in the pituitary gland and serum in ruminants and the structural heterogeneity of this hormone is emphasized.
Journal ArticleDOI

Opioid system manipulation during testicular development: results on sperm production and sertoli cells population

TL;DR: The manipulation of opioidergic system during pre-natal period reduced the total length of seminiferous tubule and Sertoli cell population in adult rats, but sperm production was normal because this cell has had a compensatory response for spermatozoids support capacity.
Journal ArticleDOI

Annual and periovulatory changes in tyrosine hydroxylase activity in the ovary of the catfish Heteropneustes fossilis

TL;DR: The results suggest that catecholamine synthesis is increased during both ovarian recrudescence and spawning of the annual reproductive cycle, implying a functional role in ovarian growth, maturation and ovulation.
References
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Book ChapterDOI

Seasonal breeding:nature's contraceptive.

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.