2Keskintepe L,Brackett B G.In vitro developmental competence of in vitro matured bovine oocytes fertilized and cultured in completely defined media[J].Biol Reprod,1996,55 (2):333-339.
3Lindeberg M,Carlstromm K,Ritvos O,et al.Gonadotrophin stimulation of non-luteinized granulosa cells increases steroid production and the expression of enzymes involved in estrogen and progesterone synthesis[J].Hum Reprod,2007,22 (2):401-406.
4Chohan K R,Hunter A G.Meiotic competence of bovine fetal oocytes following in vitro maturation[J].Anim Reprod Sci,2003,76(1-2):43-51.
5Choi Y H,Carnevale E M,Seidel G E Jr,et al.Effects of gonadotropins on bovine oocytes matured in TCM-199[J].Theriogenology,2001,56(4):661-670.
6Izadyar F,Zeinstra E,Colenbrander B,et al.In vitro maturation of bovine oocytes in the presence of bovine activin A does not affect the number of embryos[J].Anim Reprod Sci,1996,45(1-2):37-45.
7Armstrong D T,Irvine B J,Earl C R,et al.Gonadotropin stimulation regimens for follicular aspiration and in vitro embryo production from calf oocytes[J].Theriogenology,1994,42 (7):1227–1236.
8Zuelke K A,Brackett B G.Effects of luteinizing hormone on glucose metabolism in cumulus-enclosed bovine oocytes matured in vitro[J].Endocrinology,1992,131(6):2690-6.
9Benjamia G,Brackett J.Analysis of factors involvedin the in vitro production of bovine embryos[J].Theriogenology,1993,39:43-46.
1Li R,Albertini D F.The road to maturation:somatic cell interaction and self-organization of the mammalian oocyte[J].Nat Rev Mol Cell Biol,2013,14(3):141-152.
2Gliedt D W,Rosenkrans C F,Jr Rorie R W,et al.Effects of media,serum,oviductal cells,and hormones during maturation on bovine embryo development in vitro[J].J Dairy Sci,1996,79(4):536-542.
3Fukui Y,Fukushima M,Terawaki Y,et al.Effect of gonadotropins,steroids and culture media on bovine oocyte maturation in vitro[J].Theriogenology,1982,18(2):161-175.
4Park K W,Iga K,Niwa K.Exposure of bovine oocytes to EGF during maturation allows them to develop to blastocysts in a chemically-defined medium[J].Theriogenology,1997,48(7):1127-1135.
5Rios G L,Buschiazzo J,Mucci N C,et al.Combined epidermal growth factor and hyaluronic acid supplementation of in vitro maturation medium and its impact on bovine oocyte proteome and competence[J].Theriogenology,2015,83(5):874-880.
6Beker A R,Colenbrander B,Bevers M M.Effect of 17beta-estradiol on the in vitro maturation of bovine oocytes[J].Theriogenology,2002,58(9):1663-1673.
7Purohit G N,Brady M S,Sharma S S.Influence of epidermal growth factor and insulin-like growth factor 1 on nuclear maturation and fertilization of buffalo cumulus oocyte complexes in serum free media and their subsequent development in vitro[J].Anim Reprod Sci,2005,87(3-4):229-239.
8Lorenzo P L,Illera M J,Illera J C,et al.Enhancement of cumulus expansion and nuclear maturation during bovine oocyte maturation in vitro by the addition of epidermal growth factor and insulin-like growth factor Ⅰ[J].J Reprod Fertil,1994,101(3):697-701.
9Legge M.Oocyte and zygote zona pellucida permeability to macromolecules[J].J Exp Zool,1995,271(2):145-150.
10Reizel Y,Elbaz J,Dekel N.Sustained activity of the EGF receptor is an absolute requisite for LH-induced oocyte maturation and cumulus expansion[J].Mol Endocrinol,2010,24(2):402-411.
