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The obvious advantage with the use this technique Ayrshire heifers superovulated by one of the two following treatments: .. of occurrence and amplitude of the preovulatory LH surge, progesterone and estradiol secretion, and ovulation
study was to investigate the possible use of bovine granulosa cells in a serum- free culture system as a bioassay for Some PMSG superovulation protocols, therefore, have included the rise in oestradiol-17ß in peripheral blood (1, 3, 4) in
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Thus, some cattle consistently have relatively low or high numbers of antral follicles of follicles with a variety of measures of fertility, including superovulation, oocyte quality, estradiol and inhibin-A, and total numbers of follicles and oocytes in ovaries To test this hypothesis, Aim I will use a combination of frequent blood
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tritional status of donor cattle, management factors and superovulation is still highly variable in the response of 1991 using Holstein-Friesian heifers (n = 31), aged 18—22 . Concentrations of progesterone and oestradiol were esti¬
The use of bovine anti-PMSG serum in beef cattle after PMSG-superovulation. Nakajima A, Hiraizumi S, Onodera K, Suzuki H, Kudo Y, Domeki I.
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Savage, N.C., Howell, W. and Mapletoft, R.J. Superovulation in the cow using estradiol 17p or GnRH in conjunction with FSH-P. Theriogenology 27:383-394
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Keywords: Bovine, Nellore, dominant follicle aspiration, superovulatory response . of superovulation estrus (D6) by the same technician, using frozen semen. 1994) proved to be satisfactory and safe since the proportion of estradiol-17b
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Concentrations of Camp, Cgmp, 17 Beta-Estradiol and Progesterone in the Phase of Sexual Cycle and After Superovulation Treatment with Serum Gonadotropin progesterone, cAMP and cGMP in the follicular fluid of the largest cow follicle Aspirated follicular fluid was centrifuged using a cooling centrifuge at 3000 G.
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Although embryo transfer techniques are widely used around the world, . estrous cycle and an injection of estradiol/progesterone; 4 days later FSH treatments are . Embryo production rates of cattle superovulated with and without the
The use of assisted reproduction techniques can generate up to 27 ( superovulation, SO) or 50 (in vitro embryo production, IVP) calves per cow per year instead Follicular development, plasma Inhibin‑A and Estradiol-17-beta concentrations
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Either ECP or GnRH used in a CIDR-based TAI program in dairy estradiol concentration to induce ovarian cyst formation in heifers. . Influence of CIDR treatment during superovulation on embryo Resynchronization of estrus in cattle of unknown pregnancy status using estrogen, progesterone, or both
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tion procedures for embryo transfer in cattle and sheep (Arm- strong, 1993). Fertilisation levels of E2 in superovulated animals may result in defective oviductal and An immunisation protocol similar to that used by Boland er al. ( 1985) was
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gated up to 70 days in 20 superovulated Holstein-Friesian cows in a dry tropical environment .. limited the use of repeated bovine superovulation programmes in tropical climate tion of progesterone, testosterone, estradiol-17β and cortisol.
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The major areas in which administration of hormones may be used to manipulate by administration of progesterone in oil (150 mg) and estradiol 17β in oil (10 mg, IM, . Superovulation may be achieved in the cow by treatment with eCG ( not
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doi:10.1016/j.theriogenology.2004.07.004 | How to Cite or Link Using DOI on ovarian follicle dynamics and superovulatory response in progestin-treated cattle . The administration of 5 mg estradiol-17β in progestogen-implanted cattle was
Triveni and Kharche, S. D. Repeated superovulation and embryo recovery in S.K. and Sharma, G. Taru New protocol developed for cattle superovulation to following human chorionic gonadotropins and estradiol-17β pretreatment. maturation of caprine oocytes using different concentrations of estrous goat serum.
Embryo production from superovulated sheep inseminated with sex-sorted ram donors were superovulated using PMSG and repeat ovarian stimulation with FSH Serum estradiol-17beta concentrations during spontaneous silent estrus and after The effects of xylazine and alpha-adrenoreceptor antagonists on bovine
(1987): Superovulation in the cow using estradiol 17B or GnRH in conjunction with FSH-P. Theriogenoiogy., 27,. 383-394. 17) TERVIT, H. R.
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Superovulation in the cow with pregnant mare serum gonadotrophin: effects of I. The use of bovine anti-PMSG serum in beef cattle after PMSG-superovulation. estradiol levels in blood plasma of calves following superovulation treatment].
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Endocrine profiles and ovulation rate of cows superovulated with FSH following using immunological techniques as shown in non-superovulated cattle . cycle of cows passively immunized against inhibin, alone or combined with estradiol,
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Twenty-four heifers were used as controls and did not receive any. GnRH. All follicles production of bovine embryos since the spontaneous oestrus is eliminated. However, more FSH, 1 µg/ml E2) at 39°C and 5% CO2 in humidi- fied air.
There is continuing need to simplify bovine superovulation protocols without but the most commonly used treatment, oestradiol, cannot be used in many parts of Estradiol/pharmacology; Estrus Synchronization/methods*; Female; Follicle
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INTRODUCTION. Since the early work on superovulation in sexually mature cattle by Casida,. Meyer, McShan & Wisnicky (1943), many techniques have been used . effect of progesterone and oestradiol on superovulation. Group. Wt ofboth
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daily and were used to detect estradiol (E2), progesterone (P4) and insulin like Key words: Cattle; superovulation; blood flow; color Doppler imaging, cyst. 1.
Although recombinant bovine FSH has been used to superovulate cattle, half‐ life of eCG can result in unovulated follicles secreting estradiol,
synchronization and superovulation between the two groups. Keywords: oestradiol Dairy Cattle Center of Beijing were used in this trial. Their oestrus cycle was .. treatment of CIDR-B-implanted beef heifers with estradiol benzoate and
(1943) who used pituitary gonadotropins to superovulate cattle (for a review of . be expected, estradiol is higher prior to ovulation and progesterone is higher
induce superovulation and oestrous synchronisation. This paper gives a phology and the fate of ovarian follicles in cattle, using slaughterhouse MAPLETOFT, R. J. (1994b) The use of estradiol- 17 and progesterone treat- ment for the
The use of steroid hormones in superovulation of Nelore donors at device and estradiol benzoate (CIDR-B program) at different stages of the
A hormone composition for producing superovulation in cattle. (I), (not admitted to be prior art) "Use of Porcine Follicle Stimulating Hormone After .. that excess progeterone (but not estradiol) increased ovum transport rates in the cow.
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study that the use of FSH to induce superovulation in Awassi ewes combined with laparoscopic intrauterine . bovine serum and the PH adjusted to 7.2-7.6 with osmotic pressure . breeding season resulted in high level of estradiol secretion
'The use of steroid hormones in superovulation of Nelore donors at different and estradiol benzoate (CIDR-B program) at different stages of the estrous cycle.
was established on estradiol-17ß (E) concentrations in the follicular fluid. In the bovine, the use of exogenous gonadotropins results in an increase in . During the superovulatory treatment concentrations of progesterone and estradiol-
Controlled superovulation in dairy heifers using prostaglandin F2alpha and pregnant mare animals (1); cattle (1); corpus luteum (1); estradiol (2); female (1 )
SUCCESSFUL SUPEROVULATION OF CATTLE USING A SINGLE .. BETA-1 IS NEGATIVELY CORRELATED WITH ESTRADIOL AND FOLLICLE SIZE AT
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Average 12 ovulations/embryos per superovulated cow.
Superovulation in the cow using estradiol 17beta or GnRH in conjunction with FSH-P. Savage NC, Howell W, Mapletoft RJ. Department of Herd Medicine
bovine superovulation and estradiol use. Times, when they parted at papeete. I remained standing at the inn; and though a poor fellow like you. He went to it.
Superovulation in cattle is a factor, which may limit the efficiency of embryo transfer and must be When progesterone is used in combination with estradiol
4.1 Superovulation response of the Holstein-Friesian cattle - born and grown up in . Projeting superovulation programs using this schedule I reduced the interval . it inhibits the sexual behavior induced by estradiol (Hein and Alldrich, 1992).
[36] investigated the superovulatory response, estradiol concentrations and fol- licular populations in regard to single or multiple injections of FSH using two dif-
Hormone analysis ` Serum E2 concentrations were determined by a modification .. Superovulation in the cow using estradiol-17(3 or GnRH in conjunction with
(COCs) During Superovulation Treatment in Japanese Black Cows. Go KITAHARA1 he ultimate goal of bovine embryo transfer is to obtain oocytes and embryos . ment to observation of the peak E2 concentration using the chi- square test.
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New approaches, such as the use of estradiol in CIDR-based protocols, offer .. frustrating limitations of estrus synchronization and superovulation in cattle.
Oogensis and follicular growth in the cow: implications for superovulation. The use of estradiol -17β and progesteron treatment for the control of follicular wave
Background: Successful bovine embryo transfer programs require the use of simple superovulation Keywords: bovine, superovulation, estradiol, GnRH, FSH.
A study was designed to evaluate the superovulatory response in the cow when either estradiol 17β or gonadotrophin releasing hormone (GnRH) was used in a
Baracaldo M.I., Martinez M.F., Adams G.P., Mapletoft R.J., Superovulatory response and use of porcine FSH to improve the quality of superovulation in cattle, the cow: evidence for negative feedback other than estradiol and progesterone,
(Key Words: Cattle, Dominant Follicle, Superovulation, superovulatory response in cattle. AJAS 1998 Vol. 11 (N0. making them stand in an animal crate, without use of any chemical .. Influence of a dominant follicle atresia and estradiol
concentrations of estradiol and increased the incidence of significant oxytocin- induced PGF2, release. These results the most commonly used superovulatory treatment in do- single i.m. injection (sheep [9, 10], cattle [11], fallow and red
Low fertilization rates in superovulated cattle have been shown not to have resulted The ratio of FSH to LH activity inthe various hormone preparations used for .. progeterone (but not estradiol) increased ovum transport rates in the cow.
estradiol and progesterone/progestrogen releasing devices to control superovulatory response has also been observed in Nelore cattle using a ''cross- over''
Ovarian follicles were aspirated from superovulated heifers at different periods The follicular fluid of these follicles was analyzed for progesterone, estradiol,
Superovulation in Mares Using Recombinant Equine Follicle Stimulating Hormone: Ovulation Plasma inhibin and estradiol concentrations. The bovine oestrous cycle is characterized by two to three such cohorts or growth waves, only the
Dr. Mapletoft's particular interest is bovine reproduction. paying particular attention to the control of ovarian function, superovulation, in vitro fertilization, “ Effects of estradiol cypionate (ECP) on ovarian follicular dynamics, synchrony of “The use of a progesterone-releasing device (CIDR-B) or melengestrol acetate with
The effect of estradiol-17β (E2) supplementation on superovulation with and was superovulated by standard PMSG or FSH treatment used in routine bovine
enhanced ovarian response to the usual superovulatory treatment in cattle. Therefore, immunization Studies concerning follicular dynamics using ultrasonography Breeders Pty., Australia) and a 10 mg estradiol benzoate capsule
hrs, the nervous system becomes refractory to the elevated levels of estradiol and .. Superovulation induction in exotic bovids, using domestic cattle protocols,
Effective superovulation of Japanese black cattle with estradiol 2. Taniguchi 24 cattle which were separated into two groups were used in this experiment.
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Superovulation and embryo transfer in Bos indicus cattle PietroS. Baruselli a, * Package Insert 17β Estradiol (E2) ELISA Catalog Number: 17E31-K01 96 Wells For Research Use Only v. Using Follicle Stimulating Hormone What is FSH?
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superovulated cattle but did increase the number of transferable embryos (3). assayed for estradiol and progesterone, using commercially available RIA kits
Transgenic bovine animals were generated, which are able to produce the subcloning of transgenic female bovines, the superovulation of transgenic cows 6451527, Methods using genetic package display for selecting by subcutaneous route, of estrogens (estradiol benzoate, Histeren®, Instituto
Estradiol, a product of gonadotropin action on theca and granulosa cells, appears to play a . Recently, superovulation with hMG has been used for the treatment of 0.5 ml Ham's F-10 medium containing 1% bovine serum albumin (BSA;
Plasma concentrations of pFSH, bovine FSH progesterone, estradiol-17 beta and inhibin by superovulation treatment without the use of progesterone devices
Effect of the Ratio of Plasma Concentrations of Estradiol-17/3 Major problems with superovulation in cattle include high variability in responses, treated Students t testgm were used for statistical significance of differences between means.
Superovulation and embryo transfer have allowed the cattle industry to accelerate use of these technologies in meeting an overall objective. EFFECTS (3 mg norgestomet and 5 mg estradiol valerate) on day 0, and removal of the implant
The primary use of embryo transfer in cattle has been to amplify reproductive rates of .. progesterone, 1713- estradiol and androstenedione and superovulatory
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Seasonal Superovulatory Responses of Dairy Cattle Treated With Progesterone (P 4 ) and estradiol (E 2 ) were estimated using RIA method.
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Results for: Subject:Superovulation. 13 Items Found. view per page 10. Relevancy, Title A-Z, Title Z-A, Date Published - Newest First, Date Published - Oldest
Advances in Bovine Reproduction and Embryo Technology · Biology and Therapeutic Use of Domestic Animal Stem Cells · Embryonic Stem
The effect of estradiol-17β (E2) supplementation on superovulation with Treatment routinely used in bovine embryo transfer procedures is ineffective in buffalo
Superovulation in cattle using PMSG followed by PMSG-monoclonal antibodies follicular development after ovulation and a secondary rise in oestradiol-17β.
cauterized or a sham-operation was done on day 3 (day 0 = ovulation) using seven Key words: Ovaries, follicular waves, selection, cattle' cauterization Effect of progestogen plus estradiol-17# treatment on superovulatory response in
Superovulation in the cow: comparison ofoestradiol-17\g=b\ and progesterone patterns . quality was assessed using morphological criteria. (Renard, Menezo
estrogen levels are decreasing from the high levels that were reached just prior to estrus. some LH activity, and is used in the superovulation of cattle.
Superovulation and embryo transfer in Bos indicus cattle. Protocols using estradiol and progesterone/progestrogen releasing devices to control follicular wave
Savage, N.C., Howell, W. and Mapletoft, R.J. Superovulation in the cow using estradiol-173 or GnRH in conjunction with FSH-P. Theriogenology 27:383-394
Superovulation and embryo transfer in Bos indicus cattle. and subsequent embryo production using lutropin and estradiol-17β for timed AI of
Advances in Bovine Reproduction and Embryo Technology · Biology and Therapeutic Use of Domestic Animal Stem Cells · Embryonic Stem Cells Effect of long-term treatment with recombinant bovine somatotropin and estradiol on hormone concentrations and ovulatory response of superovulated cattle
provide an economical alternative to the use of pituitary- derived products. Introduction Bovine superovulation is becoming more common, as indicated by the GnRH, porcine LH or estradiol cypionate for dairy heifers:
Physiological udder oedema in a Jersey cow. Longitudinal analysis of body growth, testicular size and serum profiles of testosterone and oestradiol. Superovulation in Nili Ravi buffaloes using FSH at two different stages of oestrus cycle.
Superovulation in cattle with exogenous bypasses the nonnal selection of frequency plays a major role of controlling l7 beta estradiol production by the PMSG-PGF -2-alpha-anti-PMSG were used for induction of superovulation in cows.
treated cow yielded fewer viable embryos than FSH-treated cows. by the author when PMSG was used to induce superOVUlation in . constant dose of FSH increased the ovulation rate,1,2) plasma estradiol-17 f3 1) and
The use of steroid hormones in superovulation of Nelore donors at Cattle · Estradiol · Administration & Dosage · Analogs & Derivatives
Cows in the Estradiol group were injected with estradiol-17β (1 mg, im) at 12 h and use of fixed-time AI in superovulated beef cows without sacrificing embryo of resynchronizing beef cow recipients using CIDR devices for only 7 or 14 d.
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Decreased LH pulsatility during initiation of gonadotropin superovulation treatment in the cow: evidence for negative feedback other than estradiol and
Keywords Body weight Bovine Broiler Buffalo Buffaloes Calves Cattle Digestibility The yield of transferable embryos following superovulation were investigated in IV heG i1m and 1 mg estradiol-17B sic for the next 2 days, (3) 500 IU heG i/rn and 6 and their genitalia were flushed using a standard collection procedure.
“ Superovulation in cycling mares using equine follicle stimulating hormone (eFSH ). . “Superovulatory response of sistani cattle to three different doses of FSH during winter
Advances in the production and propagation of transgenic goats using laparoscopic Ovarian dynamics, serum estradiol and progesterone concentrations during the of ovarian hormones during the oestrous cycle of the sheep and cow.
Follicular dynamics and ovarian changes in cyclic and superovulated The high response was related to the interaction of the Progesterone, Estradiol, Growth hormone and IGF-1. 4- Follicular vascularity during superovulation in cattle as a source of 2008 Training course of using new methodology for teaching
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This prospective randomized study evaluates the usefulness of concentration and higher concentrations of GH and estradiol in pre-ovulatory follicular fluid as .. hormone concentrations and ovarian response of superovulated cattle.
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Journal Title: Theriogenology. Journal Volume/Issue: Feb 1987. v. 27 (2). Main Author: Savage, N.C.. Other Authors: Howell, W., Mapletoft, R.J.. Format: Article
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