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Showing 1 to 20 of 214 for “"Ovulation"”.
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Untersuchungen zur verzögerten Ovulation beim Rind
Delayed ovulation in dairy cattle – a field study The aim of the present study was, to analyze the incidence of delayed ovulation in dairy cattle and to evaluate its influence on the conception rate. The examinations were carried out on 304 animals (293 cows and 11 heifers) of the breeds Swiss …
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The role of endothelin-2 in ovulation
During ovulation, the oocyte and associated cumulus cells are expelled from the ovary and travel to the ampulla of the oviduct where fertilization occurs. Concurrently, granulosa and theca cells of an ovulating follicle luteinize and form lutein cells of the highly vascular corpus luteum, which …
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Hormonal Control of the Hen's Ovulation Cycle
Made available in DSpace on 2014-12-09T14:28:56Z (GMT). No. of bitstreams: 1 6706572.pdf: 3201586 bytes, checksum: 4a4af83596359a227c8c2b24d9fe0df5 (MD5) Previous issue date: 1966
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Managing the lactating sow to stimulate lactation ovulation
In lactation, sows are typically anoestrus, with ovulation occurring three to seven days after weaning at approximately 24 days post-partum. Increasing piglet age to greater than 28 days improves piglet performance and welfare; however, it also results in reduced sow farrowing frequencies, making …
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Studies of the Mechanism of Ovulation in Hens
Made available in DSpace on 2014-12-10T22:30:24Z (GMT). No. of bitstreams: 1 7219859.pdf: 3732397 bytes, checksum: d0367cee2a66a199628419a5a4928616 (MD5) Previous issue date: 1972
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Studies of Phenomena Associated With Ovulation in the Rabbit
Made available in DSpace on 2014-12-10T22:30:24Z (GMT). No. of bitstreams: 1 7309958.pdf: 3671624 bytes, checksum: 71b9f40f4588f70047bc7a30d44a1b55 (MD5) Previous issue date: 1972
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Factors Affecting Follicular Growth and Ovulation in Hypophysectomized Hens
Made available in DSpace on 2014-12-05T17:47:46Z (GMT). No. of bitstreams: 1 6100182.pdf: 3809002 bytes, checksum: 4827f5295f061aa34c983e6dfcce9d50 (MD5) Previous issue date: 1960
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The effectiveness and efficiency of ovulation induction agents in mares
… of deslorelin (Ovuplant™) for inducing ovulation and their overall effect on reproductive efficiency. Data were collected over 3 consecutive years, from 1999-2001; a total of 1422 cycles were examined from 658 mares. Of the 1422 cycles examined, 383 were treated with hCG, 451 with …
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Studies of the Mechanisms of Ovulation and Steroidogenesis in the Rabbit
Made available in DSpace on 2014-12-11T22:22:25Z (GMT). No. of bitstreams: 1 7414514.pdf: 3317691 bytes, checksum: 0f38b456fbf97f1edf0436168b625de7 (MD5) Previous issue date: 1974
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Progesterone Receptor Regulation of the Gene Networks That Control Ovulation in Mice
… surge of luteinizing hormone (LH) induces ovulation, releasing a fertilizable egg from a mature ovarian follicle. Although ovulation is a physiologically well-characterized event, the underlying molecular processes remain poorly understood. Based on research performed over the past twenty …
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Rate of Ovulation and Implantation in Swine as Affected by Dietary Factors
Made available in DSpace on 2014-12-05T17:47:41Z (GMT). No. of bitstreams: 1 6003873.pdf: 3383191 bytes, checksum: ab3782a9672e41020ab68908fc197a43 (MD5) Previous issue date: 1960
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Investigating the role of ephrins and their receptors in mouse folliculogenesis and ovulation
… surge of luteinizing hormone (LH) that triggers ovulation. Ephrins (Efn genes) and Eph receptors (Eph genes) are membrane-associated signaling molecules that mediate communication at sites of cell-cell contact, and have been extensively studied in the context of embryonic development. The …
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Study of the pharmacological modification of neuroendocrine mechanisms controlling ovulation in the rat.
… inhibits ovulation in the rat. This study investigated the mechanism of action of the drug. The results showed that administration at or before 01:00h on proestrus blocked the preovulatory LH surge, which was restored by LHRH or oestradiol plus progesterone. …
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The Effect of The Pineal Gland on Ovulation and Pregnancy in The Rat
Made available in DSpace on 2014-12-11T22:22:07Z (GMT). No. of bitstreams: 1 7105261.pdf: 3849220 bytes, checksum: aae0737b66d573a9ab91a354f62f3a1f (MD5) Previous issue date: 1970
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Sow body temperature and behavioral changes associated with the onset of estrus and ovulation
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-03-28 without embargo terms
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Interaction of number of boar sperm and insemination timing on fertility following induced ovulation
Variability in estrus and ovulation requires multiple inseminations during estrus to ensure one AI occurs close to ovulation. Induction of ovulation with a GnRH agonist after weaning improves synchrony of ovulation and allows for fixed time AI. However, the interaction between number of sperm in …
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Synchronization and Resynchronization of Ovulation and Timed Insemination in Lactating Dairy Cows and Heifers
… protocols are equally effective in synchronizing ovulation in a TAI program and resulted in comparable PR.
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