[
1. Thatcher WW, Staples CR, Santos JE: The Future of Reproductive Management. In Dairy Cattle Reproduction Conference Indianapolis, EE. UU 2013.
]Search in Google Scholar
[
2. Stevenson JS, Kobayashi Y, Thomson KE: Reproductive performance of dairy cows in various programmed breeding systems including OvSynch and combinations of gonadotropin-releasing hormone and prostaglandin F2α. J Dairy Sci 1999, 82:506–51510.3168/jds.S0022-0302(99)75261-6
]Search in Google Scholar
[
3. Pu rsley JR, Silcox RW, Wiltbank MC: Effect of time of artificial insemination on pregnancy rates, calving rates, pregnancy loss, and gender ratios after synchronization of ovulation in lactating dairy cows. J Dairy Sci 1998, 81:2139–2144.10.3168/jds.S0022-0302(98)75790-X
]Search in Google Scholar
[
4. Carvalho PD, Santos VG, Giordano JO, Wiltbank MC, Fricke PM: Development of fertility programs to achieve high 21-day pregnancy rates in high-producing dairy cows. Theriogenology 2018,114:165-72.10.1016/j.theriogenology.2018.03.037
]Search in Google Scholar
[
5. Pursley JR, Mee MO, Wiltbank MC: Synchronization of ovulation in dairy cows using PGF2α and GnRH. Theriogenology 1995, 44:915–923.10.1016/0093-691X(95)00279-H
]Search in Google Scholar
[
6. Souza AH, Ayres H, Ferreira RM, Wiltbank MC: A new presynchronization system (Double-Ovsynch) increases fertility at first postpartum timed AI in lactating dairy cows. Theriogenology 2008, 70:208–215.10.1016/j.theriogenology.2008.03.014
]Search in Google Scholar
[
7. Nowicki A, Barański W, Baryczka A, Janowski T: OvSynch protocol and its modifications in the reproduction management of dairy cattle herds–an update. J Vet Res 2017, 61:329-336.10.1515/jvetres-2017-0043
]Search in Google Scholar
[
8. Wiltbank MC, Pursley JR. The cow as an induced ovulator: Timed AI after synchronization of ovulation. Theriogenology 2014, 81:170-185.10.1016/j.theriogenology.2013.09.017
]Search in Google Scholar
[
9. Stevenson JS, Kobayashi Y, Shipka MP, Rauchholz KC: Altering conception of dairy cattle by gonadotropin-releasing hormone preceding luteolysis induced by prostaglandin F2α. J Dairy Sci 1996, 79:402-10.10.3168/jds.S0022-0302(96)76379-8
]Search in Google Scholar
[
10. Ahmed N, Kathiresan D, Ahmed FA, Lalrintluanga K, Mayengbam P, Gali JM: Pattern of induced estrus and conception rate following Ovsynch and Ovsynch based gonadotropin-releasing hormone treatments initiated on day 6 of estrous cycle in repeat breeding crossbred cows. Vet World 2016, 9:342-345.10.14202/vetworld.2016.342-345
]Search in Google Scholar
[
11. Vasconcelos JL, Silcox RW, Rosa GJ, Pursley JR, Wiltbank MC: Synchronization rate, size of the ovulatory follicle, and pregnancy rate after synchronization of ovulation beginning on different days of the estrous cycle in lactating dairy cows. Theriogenology 1999, 52:1067–1078.10.1016/S0093-691X(99)00195-8
]Search in Google Scholar
[
12. Moreira F, Orlandi C, Risco CA, Mattos R, Lopes F, Thatcher WW: Effects of presynchronization and bovine somatotropin on pregnancy rates to a timed artificial insemination protocol in lactating dairy cows. J Dairy Sci 2001, 84:1646-1659.10.3168/jds.S0022-0302(01)74600-0
]Search in Google Scholar
[
13. Stangaferro ML, Wijma R, Masello M, Giordano JO: Reproductive performance and herd exit dynamics of lactating dairy cows managed for first service with the Presynch-Ovsynch or Double-Ovsynch protocol and different duration of the voluntary waiting period. J Dairy Sci 2018, 101:1673-1686.10.3168/jds.2017-13425
]Search in Google Scholar
[
14. Giordano JO, Wiltbank MC, Guenther JN, Pawlisch R, Bas S, Cunha AP, Fricke PM: Increased fertility in lactating dairy cows resynchronized with Double-Ovsynch compared with Ovsynch initiated 32 d after timed artificial insemination. J Dairy Sci 2012, 95:639-53.10.3168/jds.2011-4418
]Search in Google Scholar
[
15. Sartori R, Haughian JM, Shaver RD, Rosa GJ, Wiltbank MC: Comparison of ovarian function and circulating steroids in estrous cycles of Holstein heifers and lactating cows. J Dairy Sci 2004, 87:905-20.10.3168/jds.S0022-0302(04)73235-X
]Search in Google Scholar
[
16. Cabrera VE: Economics of fertility in high-yielding dairy cows on confined TMR systems. Animal 2014, (s1):211-21.10.1017/S175173111400051224679357
]Search in Google Scholar
[
17. Dewey ST, Mendonca LG, Lopes GJ, Rivera FA, Guagnini F, Chebel RC, Bilby TR: Resynchronization strategies to improve fertility in lactating dairy cows utilizing a presynchronization injection of GnRH or supplemental progesterone: I. Pregnancy rates and ovarian responses. J Dairy Sci 2010, 93, 4086–409510.3168/jds.2010-323320723683
]Search in Google Scholar
[
18. Thompson IM, Cerri RL, Kim IH, Green JA, Santos JE, Thatcher WW: Effects of resynchronization programs on pregnancy per artificial insemination, progesterone, and pregnancy-associated glycoproteins in plasma of lactating dairy cows. J Dairy Sci 2010, 93:4006-18.10.3168/jds.2009-294120723675
]Search in Google Scholar
[
19. Kim IH, Jeong JK, Kang HG: Factors affecting reproductive outcomes in lactating dairy cows that undergo presynchronization-Ovsynch and successive resynchronization programs. Theriogenology 2022, 187:9-18.10.1016/j.theriogenology.2022.04.01735500426
]Search in Google Scholar
[
20. Carvalho PD, Guenther JN, Fuenzalida MJ, Amundson MC, Wiltbank MC, Fricke PM: Presynchronization using a modified Ovsynch protocol or a single gonadotropin-releasing hormone injection 7 d before an Ovsynch-56 protocol for submission of lactating dairy cows to first timed artificial insemination. J Dairy Sci 2014, 97:6305-15.10.3168/jds.2014-822225087033
]Search in Google Scholar
[
21. Galvão KN, Santos JEP, Cerri RL, Chebel RC, Rutigliano HM, Bruno RG, Bicalho RC: Evaluation of methods of resynchronization for insemination in cows of unknown pregnancy status. J Dairy Sci 2007, 90:4240–425210.3168/jds.2007-009417699043
]Search in Google Scholar
[
22. Ayres H, Ferreira RM, Cunha AP, Araujo RR, Wiltbank MC. Double-Ovsynch in high-producing dairy cows: Effects on progesterone concentrations and ovulation to GnRH treatments. Theriogenology 2013, 79:159-64.10.1016/j.theriogenology.2012.10.00123122207
]Search in Google Scholar
[
23. Herlihy MM, Giordano JO, Souza AH, Ayres H, Ferreira RM, Keskin A: Presynchronization with Double-Ovsynch improves fertility at first postpartum artificial insemination in lactating dairy cows. J Dairy Sci 2012, 95:7003-7014.10.3168/jds.2011-526023021750
]Search in Google Scholar
[
24. Alkar A, Tibary A, Wenz JR, Nebel RL, Kasimanickam R: Presynchronization with GnRH 7 days prior to resynchronization with CO-Synch did not improve pregnancy rate in lactating dairy cows. Theriogenology 2011, 76:1036-1041.10.1016/j.theriogenology.2011.05.00621719080
]Search in Google Scholar
[
25. Bisinotto RS, Chebel RC, Santos JE: Follicular wave of the ovulatory follicle and not cyclic status influences fertility of dairy cows. J Dairy Sci 2010, 93:3578-87.10.3168/jds.2010-304720655426
]Search in Google Scholar
[
26. Revah I, Butler WR: Prolonged dominance of follicles and reduced viability of bovine oocytes. Reproduction 1996, 106:39-47.10.1530/jrf.0.10600398667344
]Search in Google Scholar
[
27. Borchardt S, Pohl A, Heuwieser W: Luteal presence and ovarian response at the beginning of a timed artificial insemination protocol for lactating dairy cows affect fertility: a meta-analysis. Animals 2020, 10:1551.10.3390/ani10091551755223832887225
]Search in Google Scholar
[
28. Stojanov B, Atanasov B, Grizelj J, Vince S, Nikolovski M, Kjosevski M, Dovenski T, Adamov N, Ilievska K, Samardzija M: Induction and formation of accessory corpus luteum after artificial insemination (AI) might increase pregnancy rate per AI in heat stressed dairy cows. Mac Vet Rev 2020, 43: 37-43.10.2478/macvetrev-2020-0012
]Search in Google Scholar
[
29. Bajagić B, Mrkun J, Kirovski D, Savić Đ, Budimir D, Maletić J, Maletić M. Assessment of different diagnostic methods for the identification of subclinical endometritis in dairy cows with pathological puerperium and their reliability to conceive. Acta Vet 2021, 71:462-476.10.2478/acve-2021-0038
]Search in Google Scholar
[
30. Stevenson JS, Lamb GC: Contrasting effects of progesterone on fertility of dairy and beef cows. J Dairy Sci 2016, 99:5951-64.10.3168/jds.2015-1013026851861
]Search in Google Scholar
[
31. Wiltbank MC, Baez GM, Cochrane F, Barletta RV, Trayford CR, Joseph RT. Effect of a second treatment with prostaglandin F2α during the Ovsynch protocol on luteolysis and pregnancy in dairy cows. J Dairy Sci 2015, 98:8644-54.10.3168/jds.2015-935326433418
]Search in Google Scholar
[
32. Barletta RV, Carvalho PD, Santos VG, Melo LF, Consentini CE, Netto AS, Fricke PM. Effect of dose and timing of prostaglandin F2α treatments during a Resynch protocol on luteal regression and fertility to timed artificial insemination in lactating Holstein cows. J Dairy Sci 2018, 101:1730-6.10.3168/jds.2017-1362829224870
]Search in Google Scholar
[
33. Atanasov B, Adamov N, Celeska I, Ilievska K, Angjelovski B, Trbogazov Z, Davkov F, Dovenski T, Opsomer G, Stevenson J: Modification of the standard 7-day Ovsynch protocol to increase the luteolytic and synchronization risks in dairy cows. Mac Vet Rev 2020, 43:161-167.10.2478/macvetrev-2020-0028
]Search in Google Scholar
[
34. Giordano JO, Wiltbank MC, Fricke PM, Bas S, Pawlisch R, Guenther JN, Nascimento AB: Effect of increasing GnRH and PGF2α dose during Double-Ovsynch on ovulatory response, luteal regression, and fertility of lactating dairy cows. Theriogenology 2013, 80:773-783.10.1016/j.theriogenology.2013.07.00323932174
]Search in Google Scholar
[
35. Jeong JK, Kim UH, Kang HG, Kim IH. Selective use of a modified pre-synchronization- Ovsynch and resynchronization reproductive strategy in dairy herds: A field application study. Reprod Domest Anim 2022, 57:45-54.10.1111/rda.1402734647367
]Search in Google Scholar
[
36. Sheldon IM, Cronin J, Goetze L, Donofrio G, Schuberth HJ. Defining postpartum uterine disease and the mechanisms of infection and immunity in the female reproductive tract in cattle. Biol Reprod 2009, 81:1025-32.10.1095/biolreprod.109.077370278444319439727
]Search in Google Scholar
[
37. Moreira F, de la Sota RL, Diaz T, Thatcher WW. Effect of day of the estrous cycle at the initiation of a timed artificial insemination protocol on reproductive responses in dairy heifers. J Anim Sci 2000, 78:1568–76.10.2527/2000.7861568x10875641
]Search in Google Scholar
