Treating heifers with GnRH from 4 to 8 weeks of age advanced growth and the age at puberty

Theriogenology

Volumn 63, Issue 8, 2005, Pages 2323-2333

  Madgwick, S ^a,c   Evans, A C O ^b   Beard, A P ^a  

^a NEWCASTLE UNIVERSITY   (United Kingdom)

^b UNIVERSITY COLLEGE DUBLIN   (Ireland)

^c NEWCASTLE UNIVERSITY   (United Kingdom)

Author keywords

Cattle; GnRH; LH; Puberty; Reproductive development

Indexed keywords

BOS TAURUS; BOVINAE;

EID: 16844380012     PISSN: 0093691X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.theriogenology.2004.10.011     Document Type: Article

References (24)

1. A.C.O. Evans, and N.C. Rawlings Effects of treatment with LH and FSH between 8 and 12 weeks of age on ovarian follicular development and puberty in heifers Theriogenology 44 1995 725 740
2. M.R. Jainudeen, and E.S.E. Hafez Cattle and water buffalo E.S.E. Hafez Reproduction in farm animals 1987 Lea and Febiger Philadelphia 297 314
3. A.C.O. Evans, G.P. Adams, and N.C. Rawlings Follicular and hormonal development in prepubertal heifers from 2 to 36 weeks of age J Reprod Fertil 102 1994 463 470
4. O.J. Ginther, L. Knopf, and J.P. Kastelic Temporal associations among ovarian events in cattle during oestrus cycles with two or three follicular waves J Reprod Fertil 87 1989 223 230
5. D. Schams, E. Schallenberger, S. Gombe, and H. Karg Endocrine patterns associated with puberty in male and female cattle J Reprod Fertil Suppl 30 1981 103 110
6. A.C.O. Evans, W.D. Currie, and N.C. Rawlings Effects of naloxone on circulating gonadotrophin concentrations in prepubertal heifers J Reprod Fertil 96 1992 847 855
7. A. Honaramooz, J. Aravindakshan, R.K. Chandolia, A.P. Beard, P.M. Bartlewski, and R.A. Peirson Ultrasonographic evaluation of the pre-pubertal development of the reproductive tract in beef heifers Anim Reprod Sci 80 1/2 2004 15 29
8. A.C.O. Evans, F.J. Davis, L.F. Nasser, P. Bowman, and N.C. Rawlings Differences in early patterns of gonadotrophin secretion between Early and Late Maturing bulls, and changes in semen characteristics at puberty Theriogenology 43 1995 569 578
9. R.K. Chandolia, N.C. Rawlings, and A.C. Evans Effect of inhibition of increased gonadotrophin secretion before 20 weeks of age in bull calves on testicular development J Reprod Fertil 109 1997 65 71
10. N.C. Rawlings, and A.C.O. Evans Androgen negative feedback during the early rise in LH secretion in bull calves J Endocrinol 145 1995 243 249
11. R.K. Chandolia, A. Honaramooz, P.M. Bartlewski, A.P. Beard, and N.C. Rawlings Effects of treatment with LH releasing hormone before the early increase in LH secretion on endocrine and reproductive development in bull calves J Reprod Fertil 111 1 1997 41 50
12. D.J. Cook, M.A. Crowe, and J.F. Roche Circulating FSH isoform patterns during recurrent increase in FSH throughout the oestrous cycle in heifers J Reprod Fertil 110 1997 339 345
13. A.T. Peter Infertility due to abnormalities of the ovaries R.S. Youngquist Current therapy in large animal theriogenology 1997 WB Saunders Philadelphia 349 354
14. E.J. Melvin, B.R. Lindsey, J. Quintal-Franco, E. Zanella, K.E. Fike, and C.P. Van Tassell Circulating concentrations of estradiol, luteinising hormone, and follicle stimulating hormone during waves of ovarian follicular development in prepubertal cattle Biol Reprod 60 1999 405 412
15. A.P. Beard, and N.C. Rawlings Thyroid function and effects on reproduction in ewes exposed to organochloride pesticides lindane and pentachlorophenol (PCP) from conception J Toxicol Environ Health 58 1999 509 530
16. K.K. Schillo, D.J. Dierschke, and E.R. Hauser Influences of month of birth and age on patterns of luteinizing hormone secretion in prepubertal heifers Theriogenology 18 5 1982 593 598
17. K.K. Schillo, J.B. Hall, and S.M. Hileman Effects of nutrition and season on the onset of puberty in the beef heifer J Anim Sci 70 1992 3994 4005
18. J.N. Wiltbank, L.A. Gregory, J.E. Swiger, J.E. Ingalls, J.A. Rothlisberger, and R.M. Koch Effects of heterosis on age and weight at puberty in beef heifers J Anim Sci 25 1966 744 784
19. G.F. Arije, and J.N. Wiltbank Prediction of age and weight at puberty in beef heifers J Anim Sci 38 1974 803 810
20. A.M. Andersson, and N.E. Skakkebaek Exposure to exogenous estrogens in food: possible impact on human development and health Eur J Endocrinol 140 1999 477 485
21. G.V. Childs Growth hormone cells as co-gonadotropes: partners in the regulation of the reproductive system Trends Endocrinol Metab 11 5 2000 168 175
22. W.S. Li, H.R. Lin, and A.O.L. Wong Effects of gonadotropin-releasing hormone on growth hormone secretion and gene expression in common carp pituitary Comp Biochem Physiol B - Biochem Mol Biol 132 2 2002 335 341
23. J. Gong, T. Bramley, and R. Webb The effect of recombinant bovine somatotropin on ovarian function in heifers: follicular populations and peripheral hormones Biol Reprod 45 1991 941 949
24. E.Y. Adashi, C.E. Resnick, E. Ricciarelli, A. Hurwitz, E. Kokia, and C. Tedeschi Granulosa cell-derived insulin-like growth factor (IGF) bindin-proteins are inhibitory to IGF-I hormonal action - evidence derived from the use of truncated IGF-I analogue J Clin Invest 90 4 1992 1593 1599