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Advanced Search Results For "SYNCHRONIZATION"

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 "SYNCHRONIZATION"
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Use of injectable progesterone to replace the intravaginal progesterone device on the ovulation synchronization protocol reduces the pregnancy rate in Bos indicus cows.

Publication Type: Academic Journal

Source(s): Theriogenology [Theriogenology] 2023 Jan 01; Vol. 195, pp. 55-61. Date of Electronic Publication: 2022 Oct 13.

Abstract: The aim of this study was to evaluate the effectiveness of using different doses of injectable progesterone (P4i) in a new ovulation synchronization protocol in place of progesterone (P4)-releasing intravaginal devices in Bos indicus cows. For this, th...

What a 31-yr multibreed herd taught us about the influence of B. indicus genetics on reproductive performance of cows.

Publication Type: Academic Journal

Source(s): Journal of animal science [J Anim Sci] 2022 Dec 01; Vol. 100 (12).

Abstract: Bos taurus × Bos indicus crosses are widespread in tropical and subtropical regions, nonetheless, quantitative information about the influence of B. indicus genetics on the reproductive performance of beef cattle is lacking. Herein, we determined the a...

Effects of injectable and intravaginal progesterone on ewes' reproductive performance at breeding season beginning.

Publication Type: Academic Journal

Source(s): Tropical animal health and production [Trop Anim Health Prod] 2023 Jan 31; Vol. 55 (1), pp. 58. Date of Electronic Publication: 2023 Jan 31.

Abstract: Progesterone (P4) is a steroid hormone that has a regulatory role in the female reproductive system. Studies on the effects of injectable progesterone on ewes are scarce, mainly related to their reproductive responses in the breeding season. This study...

Effect of eCG dose on ovarian haemodynamics, hormonal profiles and prolificacy rate when oestrus was induced during low-breeding season in Beetal goats.

Publication Type: Academic Journal

Source(s): Reproduction in domestic animals = Zuchthygiene [Reprod Domest Anim] 2023 Jan; Vol. 58 (1), pp. 48-59. Date of Electronic Publication: 2022 Sep 20.

Abstract: The objectives of the experiment were to determine the effect of two doses of equine chorionic gonadotropin (eCG) in a standard synchronization protocol based on a short-term progesterone (P 4 ) priming on ovarian structures and haemodynamics, concentr...

Shifts in uterine bacterial communities associated with endogenous progesterone and 17β-estradiol concentrations in beef cattle.

Publication Type: Academic Journal

Source(s): Domestic animal endocrinology [Domest Anim Endocrinol] 2023 Jan; Vol. 82, pp. 106766. Date of Electronic Publication: 2022 Sep 08.

Abstract: The relation between circulating concentrations of progesterone and 17β-estradiol prior to insemination play a key role in optimizing fertility in cattle. This study aimed to determine the impact of endogenous progesterone (P 4 ) and estradiol (E 2 ) c...

Equine chorionic gonadotropin administered on day 5 of a 7-days fixed-time artificial insemination program improves ovulation synchrony and corpus luteum function in anestrous beef cows.

Publication Type: Academic Journal

Source(s): Theriogenology [Theriogenology] 2023 Jan 01; Vol. 195, pp. 62-68. Date of Electronic Publication: 2022 Oct 17.

Abstract: In order to assess the effect of equine chorionic gonadotropin (eCG) administered on Day 5 or 7 of a fixed-time artificial insemination protocol (FTAI) in anestrous suckled beef cows, two experiments were performed to determine the following endpoints:...

Scheduled simple production method of pseudopregnant female mice for embryo transfer using the luteinizing hormone-releasing hormone agonist.

Publication Type: Academic Journal

Source(s): Scientific reports [Sci Rep] 2022 Dec 20; Vol. 12 (1), pp. 21985. Date of Electronic Publication: 2022 Dec 20.

Abstract: The use of mice as experimental animal models has been a practice since the development of genetically engineered mouse models (GEMMs) in the early 1980s. New technologies, including genome editing, have helped in the time- and cost-efficient generatio...

No adverse effect of confirmation of ovulation by rectal palpation and ultrasonography after artificial insemination on formation, development, and function of the corpus luteum and conception rate in cows.

Publication Type: Academic Journal

Source(s): The Journal of reproduction and development [J Reprod Dev] 2022 Dec 19; Vol. 68 (6), pp. 377-382. Date of Electronic Publication: 2022 Nov 16.

Abstract: The effect of confirmation of ovulation by rectal palpation and ultrasonography after artificial insemination (AI) on the development of the corpus luteum (CL) and conception rate was investigated in cows. A total of 90 clinically healthy Holstein-Frie...

Implications of disparate uterine and ovarian development observed among heifers evaluated during the peripubertal period.

Publication Type: Academic Journal

Source(s): Animal reproduction science [Anim Reprod Sci] 2022 Dec; Vol. 247, pp. 107098. Date of Electronic Publication: 2022 Oct 19.

Abstract: The incidence and implications of disparate ovarian and uterine development during the peripubertal period were evaluated in two experiments. In Experiment 1, two consecutive pre-breeding evaluations were performed on 469 heifers. In Experiment 2, data...

Effect of fixed-time artificial insemination on corpus luteum gene expression at the day 16 and 25 pregnancy of gilt.

Publication Type: Academic Journal

Source(s): Animal biotechnology [Anim Biotechnol] 2022 Dec; Vol. 33 (7), pp. 1510-1518. Date of Electronic Publication: 2021 May 03.

Abstract: Utilization of female livestock can be optimized by application of Fixed-Time Artificial Insemination (FTAI), which plays an important role in large-scale livestock production. However, molecular mechanism of FTAI affecting reproductive performance rem...

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