Revista Veterinaria Zacatecas 2005 - Universidad Autónoma de ...

Balance energético y comportamiento reproductivo
and their nutritional regulation. J Anim
Sci 1992; 70: 2901-2910.
44. De la Sota RL, Lucy MC, Staples CR,
Thatcher WW. Effects of recombinant
bovine somatotropin (sometribove) on
ovarian function in lactating and
nonlactating dairy cows. J Dairy Sci
1993; 76: 1002-1013.
45. Arias P, Rodriguez M, Szwarcfarb B,
Sinay IR, Moguilevsky JA. Effect of
insulin on LHRH release by perifused
hypothalamic
fragments.
Neuroendocrinol 1992; 56: 415-418.
46. Zhen S, Zakaria M, Wolfe A, Radovick
S. Regulation of gonadotropin-releasing
hormone (GnRH) gene expression by
insulin-like growth factor I in a cultured
GnRH-expressing neuronal cell line. Mol
Endocrinol 1997; 11: 1145-1155.
47. Longo KM, Sun Y, Gore AC. Insulinlike
growth factor-I effects on
gonadotropin-releasing hormone
biosynthesis in GT1-7 cells.
Endocrinology 1998; 139: 1125-1132.
48. Anderson RA, Zwain IH, Arroyo A,
Mellon PL, Yen SCS. The insulin-like
growth factor system in the GT1-7 GnRH
neuronal cell line. Neuroendocrinol
1999; 70: 353-359.
49. Adam CL, Findlay PA, Moore HA.
Effects of insulin-like growth factors-I on
luteinizing hormone secretion in sheep.
Anm Reprod Sci 1997; 50: 45-56.
50. Adam CL, Gadd TS, Findlay PA, Wathes
DC. IGF-I stimulation of luteinizing
hormone secretion, IGF-binding proteins
(IGFBPs) and expression of mRNAs for
IGFs, IGF receptors and IGFBPs in the
ovine pituitary gland. Endocrinology
2000; 166: 247-254.
51. Zurek E, Foxcroft GR, Kennelly JJ.
Metabolic status and interval to first
ovulation in postpartum dairy cows.
JDary Sci 1995; 78: 1909-1920.
52. Thatcher WW, de la Sota RL, Schmitt
EJ, Diaz TC, Badinga L, Simmen FA,
Staples CR, Drost M. Control and
management of ovarian follicles in cattle
to optimize fertility. Reprod Fertil Devel
1996; 8: 203-217.
53. Beam SW, Butler WR. Energy balance
and ovarian follicle development prior
the first ovulation postpartum in dairy
cows receiving three levels of dietary fat.
Biol Reprod 1997; 56: 133-142.
54. Beam SW, Butler WR. Energy balance,
metabolic hormones, and early
postpartum follicular development in
dairy cows fed prilled lipid. J Dairy Sci
1998; 81: 121-131.
55. Taylor VJ, Beever DE, Bryant MJ,
Wathes DC. Metabolic profiles and
progesterone cycles in first lactation
dairy cows. Theriogenology 2003; 59:
1661-1677.
56. Spicer LJ, Alpizar E, Echternkamp SE.
Effects of insulin, IGF-I, and
gonadotropins on bovine granulosa cell
proliferation, progesterona production,
estradiol production, and (or) IGFI
production in vitro. J Anim Sci 1993; 71:
1232-1241.
57. Spicer LJ, Echternkamp SE. The ovarian
insulin and insulin like growth factor
system with an emphasis on domestic
animals. Domest Anim Endocrinol 1995;
12: 223-245.
58. Adashi EY. Growth factors and ovarian
function: the IGF-I paradigm. Horm Res
1994; 42: 44-48.
59. Adashi EY. The IGF family and
folliculogenesis. J Reprod Immunol
1998; 39: 13-19.
60. Gong JG, McBride D, Bramley TA,
Webb R. Effects of recombinant bovine
somatotrophin, insulin-like growth
factor-I and insulin on the proliferation of
bovine granulose cells in vitro. J
Endocrinol 1993; 139: 67-75.
61. Guidice LC. Insulin-like growth factor
and ovarian follicular development.
Endocrine Rev 1992; 13: 641-669.
62. Lucy MC. Regulation of ovarian
follicular growth by somatotropin and
insulin-like growth factors in cattle. J
Dairy Sci 2000; 83: 1635-1647.
63. Spicer LJ, Alpizar E, Vernon RK.
Insulin-like growth factor-I receptors in
ovarian granulose cells: effect of
follicular size and hormones. Mol Cell
Endocinol 1994; 102: 69-76.
64. Butler ST, Pelton SH, Butler WR. Insulin
increases 17β-estradiol production by the
dominant follicle of the first postpartum
follicle wave in dairy cows.
Reproduction 2004; 127: 537-545.
187