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Page 1
Showing results for timed ai
Search for Timev AI instead (1 results)
The cow as an induced ovulator: timed AI after synchronization of ovulation.
Wiltbank MC, Pursley JR. Wiltbank MC, et al. Theriogenology. 2014 Jan 1;81(1):170-85. doi: 10.1016/j.theriogenology.2013.09.017. Epub 2013 Oct 2. Theriogenology. 2014. PMID: 24274420 Review.
Timed-AI after synchronization of ovulation has become one of the most used reproductive technologies developed during the past 40 years. ...Our well-cited report, published in Theriogenology in 1995, presented a method termed Ovsynch, that used GnRH and PGF2alpha t …
Timed-AI after synchronization of ovulation has become one of the most used reproductive technologies developed during the pas …
Chronic hypertension in pregnancy.
Battarbee AN, Sinkey RG, Harper LM, Oparil S, Tita ATN. Battarbee AN, et al. Am J Obstet Gynecol. 2020 Jun;222(6):532-541. doi: 10.1016/j.ajog.2019.11.1243. Epub 2019 Nov 9. Am J Obstet Gynecol. 2020. PMID: 31715148 Review.
These challenges and recent guidelines for the management of chronic hypertension are reviewed. Well-timed pregnancies are of utmost importance to reduce the risks of chronic hypertension; long-acting reversible contraceptive options are preferred. ...
These challenges and recent guidelines for the management of chronic hypertension are reviewed. Well-timed pregnancies are of utmost …
A review of current timed-AI (TAI) programs for beef and dairy cattle.
Colazo MG, Mapletoft RJ. Colazo MG, et al. Can Vet J. 2014 Aug;55(8):772-80. Can Vet J. 2014. PMID: 25082993 Free PMC article. Review.
This is a review of the physiology and endocrinology of the estrous cycle and how ovarian physiology can be manipulated and controlled for timed artificial insemination (TAI) in beef and dairy cattle. Estrus detection is required for artificial insemination (AI), bu …
This is a review of the physiology and endocrinology of the estrous cycle and how ovarian physiology can be manipulated and controlled for …
Lower Urinary Tract Symptoms in Men: A Review.
Wei JT, Dauw CA, Brodsky CN. Wei JT, et al. JAMA. 2025 Sep 2;334(9):809-821. doi: 10.1001/jama.2025.7045. JAMA. 2025. PMID: 40658396 Review.
Behavioral therapy, including pelvic floor physical therapy, timed voiding (voiding at specific intervals), and fluid restriction, can improve symptoms. ...First-line therapy consists of behavioral interventions, such as pelvic floor physical therapy and timed voidi …
Behavioral therapy, including pelvic floor physical therapy, timed voiding (voiding at specific intervals), and fluid restriction, ca …
Meta-analysis of progesterone supplementation during timed artificial insemination programs in dairy cows.
Bisinotto RS, Lean IJ, Thatcher WW, Santos JE. Bisinotto RS, et al. J Dairy Sci. 2015 Apr;98(4):2472-87. doi: 10.3168/jds.2014-8954. Epub 2015 Jan 31. J Dairy Sci. 2015. PMID: 25648806 Free article.
Studies were classified based on service number (first AI vs. resynchronized AI), use of presynchronization (yes vs. no), and insemination of cows in estrus during the synchronization protocol (inseminated in estrus and timed AI vs. timed AI …
Studies were classified based on service number (first AI vs. resynchronized AI), use of presynchronization (yes vs. no), and …
Modifications of the G6G timed-AI protocol improved pregnancy per AI and reduced pregnancy loss in lactating dairy cows.
Heidari F, Dirandeh E, Ansari Pirsaraei Z, Colazo MG. Heidari F, et al. Animal. 2017 Nov;11(11):2002-2009. doi: 10.1017/S1751731117000520. Epub 2017 Mar 15. Animal. 2017. PMID: 28294091 Free article.
In dairy cows, subjected to a G6G protocol, objectives were to determine effects of (1) extending the interval from prostaglandin F2alpha (PGF2alpha) to gonadotropin-releasing hormone (GnRH) during presynchronization; and (2) adding a second PGF2alpha treatment before artificial …
In dairy cows, subjected to a G6G protocol, objectives were to determine effects of (1) extending the interval from prostaglandin F2alpha (P …
Treatment alternatives to induce follicular wave emergence for timed-AI in lactating dairy Cows.
Tschopp JC, Menchaca A, Mapletoft RJ, Bó GA. Tschopp JC, et al. Theriogenology. 2024 Sep 15;226:343-349. doi: 10.1016/j.theriogenology.2024.06.023. Epub 2024 Jun 26. Theriogenology. 2024. PMID: 38964033
Two experiments evaluated the effect of different hormonal treatments to synchronize follicle wave emergence on follicle dynamics and pregnancies per AI (P/AI) in estradiol (E2)/progesterone (P4) timed-AI (TAI) protocols in lactating dairy cows. ...In …
Two experiments evaluated the effect of different hormonal treatments to synchronize follicle wave emergence on follicle dynamics and pregna …
Optimizing timed AI protocols for Angus beef heifers: Comparison of induction of synchronized ovulation with estradiol cypionate or GnRH.
Silva EP, Wiltbank MC, Machado AB, Gambin LS, Dias MM, Chaiben MFC, Bernardi ML, Borges JBS. Silva EP, et al. Theriogenology. 2018 Nov;121:7-12. doi: 10.1016/j.theriogenology.2018.07.019. Epub 2018 Jul 27. Theriogenology. 2018. PMID: 30125829
This study compared estradiol cypionate (ECP) or GnRH as ovulation inducers at the end of a timed AI (TAI) protocol in Angus heifers. On day 0, heifers (n = 415), between 22 and 24 months of age, were treated with an intravaginal 1 g progesterone (P4) insert and 2 m …
This study compared estradiol cypionate (ECP) or GnRH as ovulation inducers at the end of a timed AI (TAI) protocol in Angus h …
Administration of PGF2alpha at the moment of timed-AI using sex-sorted or conventional semen in suckled nelore cows with different intensity of estrus behavior.
Diniz JHW, Peres RFG, Teixeira ACB, Riveros JAN, Noronha IM, Martins CFG, Oliveira CS, Pohler KG, Pugliesi G, Oliveira LZ. Diniz JHW, et al. Theriogenology. 2021 Oct 15;174:169-175. doi: 10.1016/j.theriogenology.2021.08.023. Epub 2021 Aug 21. Theriogenology. 2021. PMID: 34455244 Free article.
The aim of this work was to evaluate pregnancy rates (PR) and ovulatory characteristics of Nelore cows receiving PGF2alpha at the time of AI (artificial insemination) in a progesterone(P4)/estradiol-based timed-AI protocol. ...All cows received a 12.5 mg (IM) …
The aim of this work was to evaluate pregnancy rates (PR) and ovulatory characteristics of Nelore cows receiving PGF2alpha at the time of …
Improved fertility in suckled beef cows ovulating large follicles or supplemented with long-acting progesterone after timed-AI.
Pugliesi G, Santos FB, Lopes E, Nogueira É, Maio JR, Binelli M. Pugliesi G, et al. Theriogenology. 2016 Apr 15;85(7):1239-48. doi: 10.1016/j.theriogenology.2015.12.006. Epub 2015 Dec 18. Theriogenology. 2016. PMID: 26764150 Clinical Trial.
In experiments 2 (unknown cyclic status) and 4 (noncycling), ovulations were synchronized, and beef cows received placebo or 150 mg of long-acting P4 on Day 4 after timed-artificial insemination. In experiment 2, pregnancy/AI (P/AI) did not differ (P > 0.1 …
In experiments 2 (unknown cyclic status) and 4 (noncycling), ovulations were synchronized, and beef cows received placebo or 150 mg of long- …
1,335 results