(ES) was purchased from Schering (Kenilworth, NJ, USA).
5 g, Syntex) plus 2 mg estradiol benzoate
(Estradiol 10, Rio de Janeiro).
injections of estradiol benzoate
(50 mg per ewe in 1 ml sunflower oil) and three ewes served as the control, receiving 1 ml of 10% ethanolic saline by i.
2001) had also successfully tested the similar protocol using estradiol benzoate
in place of estradiol cypionate.
Ovariectomized steroid-primed Sprague-Dawley female rats were used as stimulus animals and were brought into behavioral estrus by a subcutaneous priming injection of 2 [micro]g estradiol benzoate
in sesame oil 48 hr before receiving 100 [micro]g progesterone (subcutaneously), as previously described (Markaverich et al.
The objective of this work was to evaluate the effect of a progesterone intravaginal device with 1 g of progesterone (IVD) plus estradiol benzoate
injection (EB), combined or not with the administration of estradiol cypionate (ECP) at device removal upon reproductive efficiency.
Ferutinin's effect was compared with that of estradiol benzoate
, subcutaneously injected at the dose of 1.
Estradiol cypionate (CPE) has been used at the time of progesterone intravaginal device removal to replace the administration of estradiol benzoate
(BE) 24 h later, without affecting pregnancy rates.
Female rats used as mating stimuli were later brought to heat artificially with single subcutaneous doses of estradiol benzoate
(10 [micro]g) and progesterone (500 [micro]g), 48 and 4 hr before testing, respectively.
These females were brought into behavioral estrus by a subcutaneous (sc) priming injection of 2 [micro]g of estradiol benzoate
(EB) in sesame oil 48 hr before receiving 100 [micro]g of progesterone (sc).
1 mg/kg of estradiol benzoate
intraperitoneally a day prior to the experiment.
Subsequently, we reported (2) that the uterotrophic activity of coumestrol in the immature intact rat was indistinguishable from that of estradiol benzoate