Secretory pattern of LH in castrated, hemicastrated and intact pubescent male goat kids

Small Ruminant Research

Volumn 23, Issue 2-3, 1997, Pages 207-211

  Ahmad, N ^a   Noakes, D E ^a   Wilson, C A ^b  

^a ROYAL VETERINARY COLLEGE   (United Kingdom)

^b ST GEORGE'S UNIVERSITY OF LONDON   (United Kingdom)

Author keywords

Castration; Goat kids; Hemicastration; LH; Testes

Indexed keywords

ANIMALIA; CAPRA HIRCUS;

EID: 0043140240     PISSN: 09214488     EISSN: None     Source Type: Journal    
DOI: 10.1016/s0921-4488(96)00913-3     Document Type: Article

References (17)

1. Brown, J.L., Stuart, L.D. and Chakraborty, P.K., 1987. Endocrine profiles, testicular gonadotrophin receptors and sperm production in hemi-castrated ram lambs. J. Anim. Sci., 65: 1563-1570.
2. D'Occhio, M.J., Schanbacher, B.D. and Kinder, J.E., 1982. Relationship between serum testosterone concentration and pattern of luteinizing hormone secretion in male sheep. Endocrinology, 110: 1547-1554.
3. Foster, D.L., Cook, B. and Nalbandov, A.V., 1972. Regulation of luteinizing hormone (LH) in the foetal and neonatal lamb: effect of castration during the early postnatal period on levels of LH in sera and pituitaries of neonatal lambs. Biol. Reprod., 6: 253-257.
4. Gonzalez, A., Foote, W.C., Murphy, B.D. and Otrega, E., 1992. Seasonal variations in circulating testosterone and luteinizing hormone in Pelibuey lambs. Small Rumin. Res., 8: 233-242.
5. Hoagland, T.A., 1983. Serum FSH, LH and testosterone in sexually stimulated intact and unilaterally castrated rams. J. Anim. Sci., Suppl. 1, 57: 345.
6. Hochereau-de Reviers, M.T. and Pelletier, J., 1971. Unilateral castration in the ram, J. Reprod. Fertil., 27: 498.
7. Hochereau-de Reviers, M.T., Loir, M. and Pelletier, J., 1976. Seasonal variations in the response of the testis and LH levels to hemicastration of adult rams. J. Reprod. Fertil., 46: 203-209.
8. Jenkins, N. and Waites, G.M.H., 1983. Effects of hemicastration at various ages and of oestradiol-17 β on plasma concentrations of gonadotrophins and androgens, testicular growth and interstitial cell responses in prepubertal lambs. J. Reprod. Fertil., 68: 325-334.
9. Johnson, B.H., 1978. Effects of hemicastration on testicular functions in adult and young pubertal bulls. Theriogenology, 10: 257-268.
10. Land, R.B. and Carr, W.R., 1975. Testis growth and plasma LH concentration following hemicastration and its relation with female prolificacy in sheep. J. Reprod. Fertil., 45: 495-501.
11. Lincoln, G.A., 1976. Secretion of LH in rams exposed to two different photoperiods. J. Reprod. Fertil., 47: 351-353.
12. Mirando, M.A., Hoagland, T.A., Woody, Jr., C.O. and Riesen, J.W., 1989. The influence of unilateral castration on testicular morphology and function in adult rams. Biol. Reprod., 41: 798-806.
13. Muduuli, D.S., Sanford, L.M., Palmer, W.M. and Howland, B.E., 1979. Secretory patterns and circadian and seasonal changes in luteinizing hormone, follicle stimulating hormone, prolactin and testosterone in the male Pygmy goat. J. Anim. Sci., 49: 543-553.
14. Olster, D.H. and Foster, D.L., 1986. Control of gonadotrophin secretion in the male during puberty: a decrease in response to steroid inhibitory feedback in the absence of an increase in steroid-independent drive in the sheep. Endocrinology, 118: 2225-2234.
15. Renfro, R.E. and Dutt, R.H., 1970. Unilateral castration and accessory gland development in ram lambs. J. Anim. Sci., 229: Abstr. 288.
16. Voglmayr, J.K. and Mattner, P.E., 1968. Compensatory hypertrophy in the remaining testis following unilateral orchidectomy in the adult ram. J. Reprod. Fertil., 17: 179-181.
17. Xu, Z.Z., McDonald, M.F., McCutcheon, S.N. and Blair, H.T., 1992. Effects of season and testosterone treatment on gonadotrophin secretion and pituitary responsiveness to gonadotrophin-releasing hormone in castrated Romney and Poll Dorset rams. J. Reprod. Fertil., 95: 183-190.