The Peripheral Levels of Luteinizing Hormone(LH), Follicle-Stimulating Hormone(FSH), Immunoreactive(ir-) Inhibin, Progesterone(P) and Estradiol-17.BETA.(E2) at the Time of Control of Ovulation With Gonadotropin Releasing Hormone(GnRH) Agonist(Deslorelin) in Pony Mares.

Derar, R.; Maeda, Yukihide; Tsunoda, Nobuo; Hoque, Md. Shafiqul; Osawa, Takeshi; Miyake, Yoh‐Ichi

doi:10.1294/jes.13.83

Cited by 2 publications

(1 citation statement)

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“…In contrast to the relatively low cost and strong ovulation effect of hCG, there are reports on the risk of twin pregnancy due to multiple ovulation [27] and decreased reactivity due to antibody production [30, 33]. Therefore, effective induction of ovulation has been attempted by implanting the gonadotropin-releasing hormone (GnRH) analog deslorelin acetate (Ovuplant TM ) [4, 7, 16, 19]. However, if conception does not occur, the implant could lead to anestrus due to pituitary downregulation or a prolonged interval between ovulations.…”

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confidence: 99%

Effects of a single use of the GnRH analog buserelin on the induction of ovulation and endocrine profiles in heavy draft mares

Miki

Oniyama

Takeda

et al. 2016

JES

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We observed structural changes in the follicles and uterus of heavy draft mares during estrus and examined the effect of a single injection of the gonadotropin-releasing hormone analog buserelin on ovulation and endocrine profiles. Twenty-two heavy draft mares were divided into a buserelin-treated group (n=8) and a control group (n=14). Mares were given an intramuscular injection of 40 µg buserelin when they presented signs of estrus to a teaser stallion, had ≥45 mm diameter follicles, and presented decreased uterine edema compared with the previous examination. The follicles and uterus were monitored using transrectal ultrasound imaging and measurement of blood levels of luteinizing hormone (LH), follicle-stimulating hormone (FSH), progesterone, and estradiol-17β. The ovulation rates within 48 hr was significantly higher in the treated group (100%, 8/8) than in the control group (57.1%, 8/14; P=0.051). The mean ± SEM time before confirmation of ovulation was 29 ± 9 hr for the treated group and 59 ± 7 hr for the control group. There were no significant differences in mating frequency, double ovulation rate, or fertility rate between the two groups. One to two days after administering buserelin, LH and FSH temporarily increased, and in the control group, LH was high during ovulation, whereas FSH temporarily increased with the growth of the follicle. These results indicate that a single injection of 40 µg buserelin when follicles are at least 45 mm in diameter and uterine edema is decreased is effective for inducing ovulation.

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mentioning

confidence: 99%

Effects of a single use of the GnRH analog buserelin on the induction of ovulation and endocrine profiles in heavy draft mares

Miki

Oniyama

Takeda

et al. 2016

JES

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Potential implications of gonadotropin-releasing hormone analogues in assisted reproductive technology

Fernandes

Das

Chandra

et al. 2022

Emerging Issues in Climate Smart Livestock Production

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The Peripheral Levels of Luteinizing Hormone(LH), Follicle-Stimulating Hormone(FSH), Immunoreactive(ir-) Inhibin, Progesterone(P) and Estradiol-17.BETA.(E2) at the Time of Control of Ovulation With Gonadotropin Releasing Hormone(GnRH) Agonist(Deslorelin) in Pony Mares.

Abstract: Control of ovulation in mares obviously has many advantages in a breeding

Cited by 2 publications

References 10 publications

Effects of a single use of the GnRH analog buserelin on the induction of ovulation and endocrine profiles in heavy draft mares

Effects of a single use of the GnRH analog buserelin on the induction of ovulation and endocrine profiles in heavy draft mares

Potential implications of gonadotropin-releasing hormone analogues in assisted reproductive technology

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