Correlation between LH response to challenges with GnRH and naloxone during lactation, and LH secretion and follicular development after weaning in the sows

Animal Reproduction Science

Volumn 56, Issue 2, 1999, Pages 143-152

  De Rensis, Fabio ^a   Foxcroft, George R ^b  

^a UNIVERSITY OF PARMA   (Italy)

^b Food Nutritional Sci   (Canada)

Author keywords

GnRH; Lactation; LH; Opioids; Pig endocrinology

Indexed keywords

GONADORELIN; LUTEINIZING HORMONE; NALOXONE; NARCOTIC ANTAGONIST;

ANIMAL; ANIMAL DISEASE; ARTICLE; BLOOD; DRUG EFFECT; FEMALE; LACTATION; OVARY FOLLICLE; PHYSIOLOGY; RADIOIMMUNOASSAY; SECRETION; SWINE; WEANING;

ANIMALS; FEMALE; GONADOTROPIN-RELEASING HORMONE; LACTATION; LUTEINIZING HORMONE; NALOXONE; NARCOTIC ANTAGONISTS; OVARIAN FOLLICLE; RADIOIMMUNOASSAY; SWINE; WEANING;

EID: 0033612496     PISSN: 03784320     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0378-4320(99)00038-X     Document Type: Article

References (29)

1. Armstrong J.D., Kraeling R.R., Britt J.H. Effects of naloxone or transient weaning on secretion of LH and prolactin in lactating sows. J. Reprod. Fertil. 83:1988;301-308.
2. Barb C.R., Kraeling R.R., Rampacek G.B., Whisnant C.S. Opioid inhibition of luteinizing hormone secretion in the post-partum lactating sow. Biol. Reprod. 35:1986;368-371.
3. Bevers M.M., Willemse M.H., Kruip T.A.M., Van de Wiel D.F.M. Prolactin levels and the LH response to synthetic LHRH in lactating sow. Anim. Reprod. Sci. 4:1981;155-163.
4. Carr W.R., Land R.B. Plasma LH levels and testis diameter of ram lambs of different breeds. J. Reprod. Fertil. 42:1975;325-333.
5. Cosgrove J.R., Urbanski H.F., Foxcroft G.R. Maturational changes in gonadotrophin secretion: the LH response to realimentation and a nocturnal increment in LH secretion of feed-restricted prepubertal gilts. J. Reprod. Fertil. 98:1993;293-300.
6. Deligeorgis S.G., English P.R., Lodge G.A. Interrelationships between growth, gonadotrophin secretion and sexual maturation in gilts reared in different litter sizes. Anim. Prod. 41:1985;393-401.
7. De Rensis F., Hunter M.G., Grant S.A., Lancaster R.T., Foxcroft G.R. Effect of oestrogen administration on endogenous and LHRH-induced LH secretion and follicular development in lactating sow. Biol. Reprod. 44:1991;975-982.
8. De Rensis F., Cosgrove J.R., Foxcroft G.R. LH and prolactin response to naloxone vary with stage of lactation in the sow. Biol. Reprod. 48:1993;970-976.
9. De Rensis F., Hunter M.G., Foxcroft G.R. Suckling-induced inhibition of LH secretion and follicular development in the early post-partum sow. Biol. Reprod. 48:1993;964-969.
10. De Rensis F., Cosgrove J.R., Foxcroft G.R. Ontogeny of the opioidergic regulation of LH and prolactin secretion in lactating sow: I. Failure of naloxone to antagonize suckling-induced changes in LH and prolactin secretion in early lactation, irrespective of pattern of administration. J. Reprod. Fertil. 112:1998;79-85.
11. Evans N.P., McNeilly J.R., Webb R. Alterations in endogenous gonadotropin secretion and pituitary responsiveness to gonadotropin-releasing hormone in adult ewes, following indirect selection in prepubertal male lambs. Biol. Reprod. 51:1994;913-919.
12. Foxcroft G.R., Shaw H.J., Hunter M.G., Booth P.J., Lancaster R.T. Relationships between luteinizing hormone, follicle-stimulating hormone and prolactin secretion and ovarian follicular development in the weaned sow. Biol. Reprod. 36:1987;175-191.
13. Foxcroft G.R., Haresign N.B., Haynes N.B., Lamming G.E., Peters A.R. Gonadotropins - domestic animals. Acta Endocrinol. 288:1988;41-50.
14. Haley C.S., Lee G.J., Fordyce M., Baxter G., Land R.B., Webb R. Study of LH response to GnRH in the young female as a criterion of genetic merit for female reproduction in the sheep. J. Reprod. Fertil. 86:1989;119-133.
15. Hanrahan J.P. Selection for increased ovulation rate, litter size, and embryo survival. Proc. 2nd World Congr. Genet. Appl. Livest. Prod. 5:1982;294-309.
16. Land, R.B., Carr, W.R., 1979. Reproduction in domestic mammals. In: Shire, J.G.M. (Ed.), Genetic Variation in Hormone Systems. CRC Press, London, pp. 89-112.
17. Land, R.B., Gauld, I.K., Lee, G.J., Webb, R., 1982. Further possibilities for manipulating the reproductive process. In: Barker, J.S.F., Hammond, K., McClimtock (Eds.), Future Developments in Genetic Improvement of Animals. Academic Press, Sydney, pp. 59-87.
18. Okrasa S., Kalamarz H. Involvement of opioid system in the control of LH secretion in sows. Reprod. Domest. Anim. 31:1996;575-583.
19. Prunier A., Dourmad J.Y., Etienne M. Feeding level, metabolic parameters and reproductive performance of primiparous sows. Livest. Prod. Sci. 37:1993;185-196.
20. Ricordeu G. Selection for reduced seasonality and post-partum anoestrus. Proc. 2nd World Congr. Genet. Appl. Livest. Prod. 5:1982;338-347.
21. Ricordeu G., Blanc M.R., Bodin L. Teneurs plasmatiques en FSH et LH des agneaux males et femelles issus de belivers Lacauneprolifiques et non prolifiques et non prolifiques. Gen. Sel. Evol. 16:1994;195-210.
22. Rojanasthien S.A.M., Lundeheim N., Einarsson S. Luteinizing hormone response to different doses of synthetic gonadotrophin releasing hormone during early and late lactation in primiparous sows. Anim. Reprod. Sci. 13:1987;299-307.
23. SAS Institute, 1988. Statistical Analysis System. SAS Institute, Cary, NC, USA.
24. Sesti L.A.C., Britt J.H. Secretion of gonadotropins and estimated releasable pools of gonadotropin-releasing hormone and gonadotropins during establishment of suckling-induced inhibition of gonadotropin secretion in the sow. Biol. Reprod. 50:1994;1078-1086.
25. Shaw H.J., Foxcroft G.R. Relationship between LH, FSH, and prolactin secretion and reproductive activity in the weaned sow. J. Reprod. Fertil. 75:1985;17-28.
26. Thimonier J., Pelletier J., Land R.B. The concentration of plasma LH in male and female lambs of high and low prolificacy breed types. J. Reprod. Fertil. 31:1972;498-499.
27. Tilton J.E., Biggs C., Hunter M.G., Foxcroft G.R. Gonadotropin secretion in ovariectomized Chinese Meishan and hybrid Large White gilts: responses to challenges with estradiol benzoate, gonadotropin releasing hormone or porcine follicular fluid. Biol. Reprod. 51:1994;963-970.
28. Tokach M.D., Pettigrew J.E., Dial G.D., Wheaton J.E., Crooker B.A., Johnston L.J. Characterization of LH secretion in the primiparous lactating sow: relationship to blood metabolites and return to estrus interval. J. Anim. Sci. 70:1992;2195-2201.
29. Zak L.J., Cosgrove J.R., Aherne F.X., Foxcroft G.R. Pattern of feed intake and associated metabolic and endocrine changes differentially affect postweaning fertility in primiparous lactating sow. J. Anim. Sci. 75:1997;208-216.