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Showing 1 to 18 of 18 for “"ESTRADIOL BENZOATE"”.
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Initiation of Parturition in Dairy Cows with Dexamethasone and Dexamethasone Plus Estradiol Benzoate
… kg body weight, or dexamethasone plus .25 mg estradiol benzoate (Trial 2) at day 273 of gestation. Parturition occurred at 45.l z +/-11.1 h (Trial 1) and 40.8 ± 9.6 h (Trial 2) after injection. Twenty-nine control cows (Trial 1) and 26 control cows (Trial 2) had average gestation lengths of …
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Response of the Prepuberal Gilt to Estradiol-Benzoate and Pregnant Mare's Serum Gonadotropin and Its Relationship to Ovulatory Potential
Made available in DSpace on 2014-12-13T19:42:48Z (GMT). No. of bitstreams: 1 7913427.pdf: 7625163 bytes, checksum: 849b21bb0e73df84fe5c728ac5503543 (MD5) Previous issue date: 1978
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Estrogen and 5-HT(1A) receptor function
… rats were given a single treatment with 25 μm estradiol benzoate followed 48 hr later with 500 μg progesterone, the 5-HT1A receptor agonist, 8-hydroxy-2(di-n-propylamino) tetralin (8-OH-DPAT), inhibited lordosis behavior. However, when rats were given a second estradiol benzoate injection …
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Estrogen and 5-HT(1A) receptor function
… rats were given a single treatment with 25 μm estradiol benzoate followed 48 hr later with 500 μg progesterone, the 5-HT1A receptor agonist, 8-hydroxy-2(di-n-propylamino) tetralin (8-OH-DPAT), inhibited lordosis behavior. However, when rats were given a second estradiol benzoate injection …
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Hypothalamic beta-endorphin, body weight, and food intake in ovarian steroid treated rats
… daily injections for 14 days with A) oil, B) β-estradiol benzoate (2µg), C) β-estradiol benzoate (2µg) plus progesterone (5mg), or D) progesterone (5mg). Weight gain was significantly (p < 0.01) lower in the estrogen group when compared to the control, estrogen/progesterone, or progesterone …
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Effect of concentrations of progesterone on follicular development and fertility in beef cows
… All cows received PGF2alpha on day 9, and estradiol benzoate on day 11. Cows were inseminated artificially 12 hours after estrus. Concentrations of progesterone were lower in treated versus control cows. Pregnancy rate did not differ between treated and control cows. Pregnancy rate was …
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The Effects of Progesterone on Extracellular Serotonin Levels in Rat Hypothalamus
… area (POA) using microdialysis. Rats primed with estradiol benzoate (5 μg) were anesthetized with choral hydrate (400 mg/kg, i.p.). Samples were collected at 20 minute intervals. Once a stable serotonin baseline was obtained, rats were injected (s.c) with 0.5 mg progesterone or vehicle. In the …
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Neural and endocrine control of mating behavior in selected mating lines of chickens and quail
… quail. Both testosterone propionate (TP) and estradiol benzoate (EB) precipitated mating behavior in HML quail in two different testing situations, whereas dihydrotestosterone was ineffective in this respect. In the LML quail, only EB was effective in eliciting mating behavior, and then only …
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Possible role of the ventromedial hypothalamus in estrus termination following vaginocervical stimulation of the rat
… were administered subcutaneous injections of estradiol benzoate and progesterone before being assigned to 4 different treatment groups. The first group received a microinfusion of a Na + channel blocker, tetrodotoxin (TTX), into the VMH an hour before receiving 50 manual VCSs, with a …
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Opioid induction of Fos in the female rat brain : modulation by ovarian hormones
… ventricle. One group of rats was treated with estradiol benzoate (10 og) 48 hr and progesterone (250 og) 4 hr before testing, another group was treated with EB-alone and a third group was treated with oil. Females were infused with the selective o-receptor agonist, DAMGO, the selective …
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Ultrasonic Communication and the Hormonal Modulation of Aggressive Behavior in the Female Hamster
… females, treatment with a combination of 17β-estradiol benzoate and progesterone suppressed fighting completely, creating a situation identical to that typical of estrous day. The aggressiveness of male and female hamsters suggests the operation of a social system in which individuals live …
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A Study of the in Vivo Release of Luteinizing Hormone-Releasing Hormone as Estimated With the Push-Pull Perfusion Technique
… Ovariectomized (OVx) rats received 5 (mu)g estradiol benzoate at 1000 h, followed 48 h later by 1.5mg progesterone (P) or oil. Rats in which P was administered showed a significant (p < 0.01) 40-min elevation of LHRH secretion at approximately 6 h following P. Basal LHRH release in all rats …
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Effects of Preovulatory Estradiol Concentration on Embryo Survival and Pregnancy Establishment in Beef Cows
<p>Estradiol exposure during the preovulatory period has been shown to affect the establishment and maintenance of pregnancy in beef cows. The mechanism by which estradiol affects pregnancy establishment and maintenance has not been well characterized. Previous studies have examined the effects of …
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Analyzing the Effects of Gonadal Hormones on Alcohol Seeking and Drinking in Alcohol-Preferring P Rats
… daily subcutaneous (s.c.) injections of either estradiol benzoate (E2), testosterone (T), or vehicle (Veh) which began five days prior to additional operant testing and lasted throughout the study. Rats were given a response requirement (RR) Monday-Thursday where they had 20-minutes to meet the …
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Methods to Synchronize Estrus, Enhance Pregnancy, and Rescue Embryos in Cattle
… of heifers and cows with 0, 1, 2 or 4 mg of estradiol benzoate (EB) at the onset of the CIDR/PGF 2alpha protocol resulted in a cubic effect on heifer conception rates (P < 0.02; 0 mg-60%; 1 mg-45%; 2 mg-63%; 4 mg-40%) vs a positive linear effect on cow pregnancy rates (PR) (P < 0.05; 0 …
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The Role of The Thyroid Gland in Regulating Synthesis and Release of Luteinizing Hormone in The Rat
… APs from Ovx rats. The interaction of T(,4) and estradiol benzoate (EB) on the synthesis and release of LH in Ovx-Tx rats were examined. Both EB and T(,4) reduced serum LH in Ovx-Tx rats. EB decreased pituitary IR-LH and stimulated the release of stored IR-LH by APs of Ovx-Tx rats. EB also …
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Estrogenic modulation of place and response learning via specific receptor-mediated mechanisms
… cognitive testing, rats were treated with either estradiol benzoate, isoflavones, or compounds that selectively target ERα, ERβ, or GPER. Rats then underwent maze training on a hippocampus-sensitive place task or dorsal striatum-sensitive response task. Our results reveal that treatment with …
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ΣΥΜΒΟΛΗ ΣΤΗ ΜΕΛΕΤΗ ΤΟΥ ΡΟΛΟΥ ΤΩΝ ΟΙΣΤΡΟΓΟΝΩΝ ΣΤΗΝ ΟΣΤΙΚΗ ΕΠΟΥΛΩΣΗ (ΚΑΤΑΓΜΑ ΚΑΤΩ ΓΝΑΘΟΥ). (ΠΕΙΡΑΜΑΤΙΚΗ ΜΕΛΕΤΗ)
… THE ANIMALS COMPOSED THE CONTROL GROUP. BENZOIC ESTRADIOL WAS ADMINISTERED INTRAMUSCULARY TO ANOTHERGROUP CONSISTED OF 21 ANIMALS AND OVARIECTOMY WAS PERFORMED TO ALL 21 ANIMALS OF THE THIRD GROUP, FOUR WEEKS BEFORE THE FRACTURES' DAY. THE STUDY METHOD USEDCOMPRISED: 1) RADIOLOGICAL EVALUATION OF …