[1. Knight PG, Glister C: TGF-β superfamily members and ovarian follicle development. Reproduction 2006, 132: 191-206.10.1530/rep.1.01074]Search in Google Scholar
[2. Su YQ, Sugiura K, Wigglesworth K, O’Brien MJ, Affourtit JP, Pangas SA, Matzuk MM, Eppig JJ: Oocyte regulation of metabolic cooperativity between mouse cumulus cells and oocytes: BMP-15 and GDF-9 control cholesterol biosynthesis in cumulus cells. Development 2008, 135: 111-121.10.1242/dev.009068]Search in Google Scholar
[3. Sun RZ, Lei L, Cheng L, Jin ZF, Zu SJ, Shan ZY, Wang ZD, Zhang JX, Liu ZH: Expression of GDF-9, BMP-15 and their receptors in mammalian ovary follicles. J Mol Hist 2010, 41: 325-332.10.1007/s10735-010-9294-2]Search in Google Scholar
[4. Orisaka M, Jiang JY, Orisaka S, Kotsuji F, Tsang BK: Growth differentiation factor 9 promotes rat preantral follicle growth by up-regulating follicular androgen biosynthesis. Endocrinology 2009, 150: 2740-2748.10.1210/en.2008-1536]Search in Google Scholar
[5. Peng X, Yang M, Wang L, Tong C, Guo Z: In vitro culture of sheep lamb ovarian cortical tissue in a sequential culture medium. J Assist Reprod Genet 2010, 27: 247-257.10.1007/s10815-010-9415-6]Search in Google Scholar
[6. Su YQ, Wu X, O’Brien MJ, Pendola FL, Denegre JN, Matzuk MM Eppig JJ: Synergistic roles of BMP15 and GDF9 in the development and function of the oocyte-cumulus cell complex in mice: genetic evidence for an oocyte-granulosa cell regulatory loop. Dev Biol 2004, 27: 64-73.10.1016/j.ydbio.2004.08.020]Search in Google Scholar
[7. Paradis F, Novak S, Murdoch GK, Dyck MK, Dixon WT, Foxcroft GR: Temporal regulation of BMP2, BMP6, BMP15, GDF9, BMPR1A, MPR1B, BMPR2 and TGFBR1 mRNA expression in the oocyte, granulosa and theca cells of developing preovulatory follicles in the pig. Reproduction 2009, 138: 115-129.10.1530/REP-08-0538]Search in Google Scholar
[8. Stankiewicz T, Błaszczyk B, Udała J: Selected aspects of pig oocytes maturation in vivo and in vitro. Med Weter 2008, 64: 400-403 (in polish).]Search in Google Scholar
[9. Paulini F, Melo EO: The Role of Oocyte-Secreted Factors GDF9 and BMP15 in Follicular Development and Oogenesis. Reprod Dom Anim 2011, 46: 354-361.10.1111/j.1439-0531.2010.01739.x]Search in Google Scholar
[10. Ebbert W, Bostedt H: Cystic Degeneration in porcine ovaries - fi rst communication: morphology of cystic ovaries, interpretation of the results. Reprod Dom Anim 1993, 28: 441-450.10.1111/j.1439-0531.1993.tb01021.x]Search in Google Scholar
[11. Fitko RJ, Kucharski B, Szlezyngier B, Jana B: The concentration of GnRH in hypothalamus, LH and FSH in pituitary, LH, PRL and sex steroids in peripheral and ovarian venous plasma of hypo- and hyperthyroid, cysts-bearing gilts. Anim Reprod Sci 1996, 45: 123-138.10.1016/S0378-4320(96)01568-0]Search in Google Scholar
[12. Castagna CD, Peixoto CH, Bortolozzo FP, Wentz I, Neto GB, Ruschel F: Ovarian cysts and their consequences on the reproductive performance of swine herds. Anim Reprod Sci 2004, 81: 115-123.10.1016/j.anireprosci.2003.08.00414749053]Search in Google Scholar
[13. Cech S, Dolezel R: Treatment of ovarian cysts in sows - a fi eld trial. Vet Med-Czech 2007, 52, 413-418.10.17221/1995-VETMED]Search in Google Scholar
[14. Tummaruk P, Kesdangsakonwut S: Factors affecting the incidence of cystic ovaries in replacement gilts. Comp Clin Path 2012, 21: 1-7.10.1007/s00580-010-1055-9]Search in Google Scholar
[15. Ebbert WF, Elsaesser F, Bostedt H: Cystic Degeneration in Porcine Ovaries - Second Communication: Concentrations of Progesterone, Estradiol-17β, and Testosterone in Cystic Fluid and Plasma; Interpretation of the Results. Reprod Dom Anim 1993, 28: 451-463.10.1111/j.1439-0531.1993.tb01022.x]Search in Google Scholar
[16. Safran A, Reubinoff BE, Porat-Katz A, Werner M, Friedler S, Lewin A: Intracytoplasmic sperm injection allows fertilization and development of a chromosomally balanced embryo from a binoovular zona pellucida. Hum Reprod 1998, 13: 2575-2578.10.1093/humrep/13.9.25759806286]Search in Google Scholar
[17. Payan-Carreira R, Pires MA: Multioocyte follicles in domestic dogs: a survey of frequency of occurrence. Theriogenology 2008, 69: 977-982.10.1016/j.theriogenology.2008.01.01318358525]Search in Google Scholar
[18. Stankiewicz T, Błaszczyk B, Udała J: A Study on the Occurrence of Polyovular Follicles in Porcine Ovaries with Particular Reference to Intrafollicular Hormone Concentrations, Quality of Oocytes and their in vitro Fertilization. Anat Histol Embryol 2009, 38: 233-239.10.1111/j.1439-0264.2009.00929.x19469770]Search in Google Scholar
[19. Hunter MG, Robinson RS, Mann GE, Webb R: Endocrine and paracrine control of follicular development and ovulation rate in farm species. Anim Reprod Sci 2004, 82-83: 461-477.10.1016/j.anireprosci.2004.05.01315271473]Search in Google Scholar
[20. Fouladi-Nashta AA, Waddington D, Campbell KHS: Maintenance of bovine oocytes in meiotic arrest and subsequent development in vitro: a comparative evaluation of antral follicle culture with other methods. Biol Reprod 1998, 59: 255-262.10.1095/biolreprod59.2.2559687293]Search in Google Scholar
[21. Eppig JJ: Oocyte control of ovarian follicular development and function in mammals. Reproduction 2001, 122: 829-838.10.1530/rep.0.122082911732978]Search in Google Scholar
[22. Otsuka F, Mctavish KJ, Shimasaki S: Integral Role of GDF-9 and BMP-15 in Ovarian Function. Mol Reprod Dev 2011, 78: 9-21.10.1002/mrd.21265305183921226076]Search in Google Scholar
[23. Prochazka R, Nemcova L, Nagyova E, Kanka J: Expression of Growth Differentiation Factor 9 Messenger RNA in Porcine Growing and Preovulatory Ovarian Follicles. Biol Reprod 2004, 71: 1290-1295.10.1095/biolreprod.104.02791215189836]Search in Google Scholar
[24. Sun YL, Zhang J, Ping ZG, Wang CQ, Sun YF, Chen L, Li XY, Li CJ, Zhu XL, Liu Z, Zhang W, Zhou X: Relationship Between Apoptosis and Proliferation in Granulosa and Theca Cells of Cystic Follicles in Sows. Reprod Dom Anim 2012, 47: 601-608.10.1111/j.1439-0531.2011.01929.x22023076]Search in Google Scholar
[25. Błaszczyk B, Udała J, Gączarzewicz D: Apoptosis in the atresia of ovarian follicles. Med Weter 2000, 56: 158-163 (in polish).]Search in Google Scholar
[26. Orisaka M, Orisaka S, Jiang JY, Craig J, Wang Y, Kotsuji F, Tsang BK: Growth differentiation factor 9 is antiapoptotic during follicular development from preantral to early antral stage. Mol Endocrinol 2006, 20: 2456-2468.10.1210/me.2005-035716740654]Search in Google Scholar
[27. Hu CL, Cowan RG, Harman RM, Quirk SM: Cell cycle progression and activation of Akt kinase are required for insulin-like growth factor I-mediated suppression of apoptosis in granulosa cells. Mol Endocrinol 2004, 18: 326-338.10.1210/me.2003-017814593075]Search in Google Scholar
[28. Craig J, Orisaka M, Wang H, Orisaka S, Thompson W, Zhu C, Kotsuji F, Tsang BK: Gonadotropin and intra-ovarian signals regulating follicle development and atresia: the delicate balance between life and death. Front Biosci 2007, 12: 3628-3639.10.2741/233917485326]Search in Google Scholar
[29. Solovyeva EV, Hayashi M, Margi K, Barkats C, Klein C, Amsterdam A, Hsueh AJ Tsafriri A: Growth Differentiation Factor-9 Stimulates Rat Theca-Interstitial Cell Androgen Biosynthesis. Biol Reprod 2000, 63: 1214-1218.10.1095/biolreprod63.4.121410993847]Search in Google Scholar
[30. Pache TD, Chadha S, Gooren LJ, Hop WC, Jaarsma KW, Dommerholt HB, Fauser BC: Ovarian morphology in long-term androgen-treated female to male transsexuals. A human model for the study of polycystic ovarian syndrome? Histopathology 1991, 19: 445-452.10.1111/j.1365-2559.1991.tb00235.x1757084]Search in Google Scholar
[31. Galloway SM, McNatty KP, Cambridge LM, Laitinen MPE, Juengel JL, Jokiranta S, McLaren RJ, Luiro K, Dodds KG, Montgomery GW, Beattie AE, Davis GH, Ritvos O: Mutations in an oocyte-derived growth factor gene (BMP15) cause increased ovulation rate and infertility in a dosage-sensitive manner. Nat Genet 2000, 25: 279-283.10.1038/7703310888873]Search in Google Scholar
[32. Hanrahan JP, Gregan SM, Mulsant P, Mullen M, Davis GH, Powell R, Galloway SM: Mutations in the genes for oocyte-derived growth factors GDF9 and BMP15 are associated with both increased ovulation rate and sterility in Cambridge and Belclare sheep (Ovis aries). Biol Reprod 2004, 70: 900-909.10.1095/biolreprod.103.02309314627550]Search in Google Scholar
[33. Vireque AA, Reis RM, Rosa e Silva AAM, Resende LOT, Ferreira EM, Rosa e Silva ACJS, Ferriani RA: Involvement of Bone Morphogenetic Proteins (BMPs) in Ovarian Function and Infertility. Open Reprod Sci J 2008, 1: 11-15. 10.2174/1874255600801010011]Search in Google Scholar