Effect of nutrition on testicular growth and plasma concentrations of gonadotrophins, testosterone and insulin-like growth factor I (IGF-I) in pubertal male Soay sheep

Journal of Reproduction and Fertility

Volumn 111, Issue 1, 1997, Pages 121-125

  Adam, C L ^a   Findlay, P A ^a  

^a ROWETT RESEARCH INSTITUTE   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

FOLLITROPIN; GONADOTROPIN; SOMATOMEDIN C; TESTOSTERONE;

ANIMAL EXPERIMENT; ANIMAL TISSUE; ARTICLE; CONTROLLED STUDY; DIET RESTRICTION; FEEDING; FLUSHING; FOLLITROPIN BLOOD LEVEL; GONADOTROPIN BLOOD LEVEL; GROWTH; MALE; NONHUMAN; NUTRITION; ORGAN GROWTH; PRIORITY JOURNAL; PROTEIN BLOOD LEVEL; PUBERTY; SHEEP; TESTIS; TESTIS SIZE; TESTOSTERONE BLOOD LEVEL;

ANIMALIA; OVIS ARIES;

EID: 0030707495     PISSN: 00224251     EISSN: None     Source Type: Journal    
DOI: 10.1530/jrf.0.1110121     Document Type: Article

References (26)

1. Adam CL, Kyle CE and Young P (1994) Influence of prenatal photoperiod on postnatal reproductive development in male red deer (Cervus elaphus) Journal of Reproduction and Fertility 100 607-611
2. Adam CL, Kyle CE, Young P and Atkinson T (1995) Effect of nutritional growth restriction on timing of reproductive development and plasma concentrations of insulin-like growth factor-1 and growth hormone in male red deer (Cervus elaphus) reared in constant photoperiod Animal Science 61 155-160
3. Bernier M, Chatelain P, Mather, JP and Saez JM (1986) Regulation of gonadotropin receptors, gonadotropin responsiveness and cell multiplication by somatomedin C and insulin in cultured pig Leydig cells Journal of Cell Physiology 129 257-263
4. Borland K, Mita M, Oppenheimer CL, Blinderman LA, Massague J, Hall PF and Czech MP (1984) The actions of insulin-like growth factors I and II on cultured Sertoli cells Endocrinology 114 240-246
5. Bruce LA, Atkinson T, Hutchinson JSM, Shakespear RA and MacRae JC (1991) The measurement of insulin-like growth factor 1 in sheep plasma Journal of Endocrinology 128 R1-R4
6. Crawford BA and Handelsman DJ (1996) Androgens regulate circulating levels of insulin-like growth factor (IGF-1) and IGF binding protein-3 during puberty in male baboons Journal of Clinical Endocrinology and Metabolism 81 65-72
7. Dýrmundsson OR (1973) Puberty and early reproductive performance in sheep. II. Ram lambs Animal Breeding Abstracts 41 419-427
8. Hiney JK, Srivastava V, Nyberg CL, Ojeda SR and Dees WL (1996) Insulin-like growth factor 1 of peripheral origin acts centrally to accelerate the initiation of female puberty Endocrinology 137 3717-3728
9. Hotzel MJ, Walkden-Brown SW, Blackberry MA and Martin GB (1995) The effect of nutrition on testicular growth in mature Merino rams involves mechanisms that are independent of changes in GnRH pulse frequency Journal of Endocrinology 147 75-85
10. Jones JI and Clemmons DR (1995) Insulin-like growth factors and their binding proteins: biological actions Endocrine Reviews 16 3-34
11. Legan SJ and Karsch FJ (1980) Photoperiodic control of seasonal breeding in the ewe: modulation of the negative feedback action of estradiol Biology of Reproduction 23 1061-1068
12. Lincoln GA and Baker BI (1995) Seasonal and photoperiod-induced changes in the secretion of α-melanocyte-stimulating hormone in Soay sheep: temporal relationships with changes in β-endorphin, prolactin, follicle-stimulating hormone, activity of the gonads and growth of wool and horns Journal of Endocrinology 144 471-481
13. Lincoln GA and Davidson W (1977) The relationship between sexual and aggressive behaviour, and pituitary and testicular activity during the seasonal sexual cycle of rams and the influence of photoperiod Journal of Reproduction and Fertility 49 267-276
14. Lincoln GA and Short RV (1980) Seasonal breeding: Nature's contraceptive Recent Progress in Hormone Research 36 1-51
15. Lincoln GA, Lincoln CE and McNeilly AS (1990) Seasonal cycles in the blood plasma concentration of FSH, inhibin and testosterone, and testicular size in rams of wild, feral and domesticated breeds of sheep Journal of Reproduction and Fertility 88 623-633
16. Martin GB, Tjondronegoro S and Blackberry MA (1994) Effects of nutrition on testicular size and the concentrations of gonadotrophins, testosterone and inhibin in plasma of mature male sheep Journal of Reproduction and Fertility 101 121-128
17. Nagpal ML, Wang D, Calkins JH, Chang W and Lin T (1991) Human chorionic gonadotropin up-regulates insulin-like growth factor-1 receptor gene expression of Leydig cells Endocrinology 129 2820-2826
18. Olster DH and Foster DL (1986) Control of gonadotropin 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
19. Pretorius PS and Marincowitz G (1968) Post-natal penis development, testis descent and puberty in Merino ram lambs on different planes of nutrition South African Journal of Agricultural Science 11 319-334
20. Renaville R, Devolder A, Massart S, Sneyers M, Burny A and Portetelle D (1993) Changes in the hypophysial-gonadal axis during the onset of puberty in young bulls Journal of Reproduction and Fertility 99 443-449
21. Renaville R, Massart S, Sneyers M, Falaki M, Gengler N, Burny A and Portetelle D (1996) Dissociation of increases in plasma insulin-like growth factor I and testosterone during the onset of puberty in bulls Journal of Reproduction and Fertility 106 79-86
22. Spiteri-Grech J and Nieschlag E (1992) The role of growth hormone and insulin-like growth factor 1 in the regulation of male reproductive function Hormone Research 38 22-27
23. Walkden-Brown SW, Restall BJ, Norton BW, Scaramuzzi RJ and Martin GB (1994) Effect of nutrition on seasonal patterns of LH, FSH and testosterone concentration, testicular mass, sebaceous gland volume and odour in Australian cashmere goats Journal of Reproduction and Fertility 102 351-360
24. Wilson ME (1995) IGF-1 administration advances the decrease in hypersensitivity to oestradiol negative feedback inhibition of serum LH in adolescent female rhesus monkeys Journal of Endocrinology 145 121-130
25. Wood RI, Ebling FJP and Foster DL (1991a) Sex differences in nutritional modulation of gonadotropin secretion during development: studies in the growth retarded lamb Biology of Reproduction 44 632-639
26. Wood RI, Ebling FJP, I'Anson H and Foster DL (1991b) The timing of neuroendocrine sexual maturity in the male lamb by photoperiod Biology of Reproduction 45 82-88