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Luteolysis in Bos indicus cows on Days 5 and 7 of estrous cycle with varying doses of PGF2α.
Ferraz Junior MV, Pires AV, Biehl MV, Santos MH, Polizel DM, Nepomuceno DD, Sartori R, Barreto Filho JB, Gonçalves JR, Day ML. Ferraz Junior MV, et al. Among authors: day ml. Theriogenology. 2016 Sep 15;86(5):1268-74. doi: 10.1016/j.theriogenology.2016.04.067. Epub 2016 Apr 27. Theriogenology. 2016. PMID: 27221255 Clinical Trial.
The aim of this study was to evaluate luteolysis using three doses of PGF2alpha on Day 5 or Day 7 of the estrous cycle in nonlactating Nellore (Bos indicus) cows. Cows (n = 323) were assigned within date of estrus (Day 0 of estrous cycle) to receive 12.5, 25. …
The aim of this study was to evaluate luteolysis using three doses of PGF2alpha on Day 5 or Day 7 of the estrous cycle in nonl …
Effect of interval from induction of puberty to initiation of a timed AI protocol on pregnancy rate in Nellore heifers.
Rodrigues AD, Peres RF, Lemes AP, Martins T, Pereira MH, Carvalho ER, Day ML, Vasconcelos JL. Rodrigues AD, et al. Among authors: day ml. Theriogenology. 2014 Sep 15;82(5):760-6. doi: 10.1016/j.theriogenology.2014.06.008. Epub 2014 Jun 19. Theriogenology. 2014. PMID: 25034515 Clinical Trial.
The TAI protocol consisted of the following: insertion of intravaginal device containing P4 (Controlled internal drug release [CIDR]; previously used twice for 9 days each) + estradiol benzoate (2 mg) on Day 0, CIDR withdrawal + estradiol cypionate (0.5 mg) and PGF2alpha ( …
The TAI protocol consisted of the following: insertion of intravaginal device containing P4 (Controlled internal drug release [CIDR]; previo …
Estradiol benzoate delays new follicular wave emergence in a dose-dependent manner after ablation of the dominant ovarian follicle in cattle.
Burke CR, Mussard ML, Gasser CL, Grum DE, Day ML. Burke CR, et al. Among authors: day ml. Theriogenology. 2003 Sep 1;60(4):647-58. doi: 10.1016/s0093-691x(03)00078-5. Theriogenology. 2003. PMID: 12832014
At 6.4+/-0.2 days after ovulation in Angus and Angus/Simmental cattle (n=26), aged 4.9+/-0.6 years and weighing 634+/-20 kg, all ovarian follicles > or =5mm in diameter were aspirated with a 17-gauge needle using an ultrasound-guided transvaginal approach (Day 0 or Hour …
At 6.4+/-0.2 days after ovulation in Angus and Angus/Simmental cattle (n=26), aged 4.9+/-0.6 years and weighing 634+/-20 kg, all ovarian fol …
Reproductive performance of prepubertal Bos indicus heifers after progesterone-based treatments.
Claro I Jr, Sá Filho OG, Peres RF, Aono FH, Day ML, Vasconcelos JL. Claro I Jr, et al. Among authors: day ml. Theriogenology. 2010 Oct 1;74(6):903-11. doi: 10.1016/j.theriogenology.2010.04.015. Epub 2010 May 21. Theriogenology. 2010. PMID: 20494432 Clinical Trial.

The breeding season started on Day 1 and consisted of AI after detection of estrus between Days 1 and 45, and exposure to bulls between Days 46 and 90. There were effects of treatment (P < 0.05) on serum concentrations of P4 on Day 0 (0.37 +/- 0.16, 2.31 +/- 0.11

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The breeding season started on Day 1 and consisted of AI after detection of estrus between Days 1 and 45, and exposure to bulls betwe …
Comparison of follicular dynamics and hormone concentrations between the 7-day and 5-day CO-Synch + CIDR program in primiparous beef cows.
Bridges GA, Mussard ML, Helser LA, Day ML. Bridges GA, et al. Among authors: day ml. Theriogenology. 2014 Mar 1;81(4):632-8. doi: 10.1016/j.theriogenology.2013.11.020. Epub 2013 Dec 8. Theriogenology. 2014. PMID: 24388673
On Day -7 (7CO) or Day -5 (5CO), GnRH (100 mug) was administered (GnRH-1) and a CIDR was inserted. ...Maximum estradiol concentrations tended (P = 0.06) to be greater in the 5CO (7.3 0.5 pg/mL) than 7CO (6.1 0.7 pg/mL) treatment and tended to be greate …
On Day -7 (7CO) or Day -5 (5CO), GnRH (100 mug) was administered (GnRH-1) and a CIDR was inserted. ...Maximum estradiol concen …
Effect of progesterone concentrations, follicle diameter, timing of artificial insemination, and ovulatory stimulus on pregnancy rate to synchronized artificial insemination in postpubertal Nellore heifers.
Martins T, Peres RF, Rodrigues AD, Pohler KG, Pereira MH, Day ML, Vasconcelos JL. Martins T, et al. Among authors: day ml. Theriogenology. 2014 Feb;81(3):446-53. doi: 10.1016/j.theriogenology.2013.10.020. Epub 2013 Oct 28. Theriogenology. 2014. PMID: 24246423
213 results