The effects of PG600 and boar exposure on oestrus detection and potential litter size following mating at either the induced (pubertal) or second oestrus

Animal Reproduction Science

Volumn 114, Issue 1-3, 2009, Pages 219-227

  Bartlett, A ^a   Pain, S J ^a   Hughes, P E ^b   Stott, P ^a   van Wettere, W H E J ^a  

^a UNIVERSITY OF ADELAIDE   (Australia)

^b Pig and Poultry Production Institute   (Australia)

Author keywords

Litter size; Oestrus; PG600; Puberty

Indexed keywords

CHORIONIC GONADOTROPIN; SERIC GONADOTROPIN;

ANIMAL; ANIMAL DISEASE; ARTICLE; ARTIFICIAL INSEMINATION; CLINICAL TRIAL; CONTROLLED CLINICAL TRIAL; CONTROLLED STUDY; DRUG COMBINATION; DRUG EFFECT; FEMALE; LITTER SIZE; MALE; PHYSIOLOGY; SEXUAL BEHAVIOR; SWINE;

ANIMALS; CHORIONIC GONADOTROPIN; DRUG COMBINATIONS; FEMALE; GONADOTROPINS, EQUINE; INSEMINATION, ARTIFICIAL; LITTER SIZE; MALE; SEXUAL BEHAVIOR, ANIMAL; SWINE;

PIERIS BRASSICAE; SUIDAE;

EID: 67249156967     PISSN: 03784320     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.anireprosci.2008.08.020     Document Type: Article

References (39)

1. Bakker J., Kelliher K.R., and Baum M.J. Mating induces gonadotropin-releasing hormone neuronal activation in anosmic female ferrets. Biol. Reprod. 64 (2001) 1100-1105
2. Bolamba D., Dubuc A., Dufour J.J., and Sirard M.-A. Effects of gonadotropin treatment on ovarian follicle growth, oocyte quality and in vitro fertilization of oocytes in prepubertal gilts. Theriogenology 46 (1996) 717-726
3. Bolamba D., and Sirard M.-A. Ovulation and follicular growth in gonadotropin-treated gilts followed by in vitro fertilization and development of their oocytes. Theriogenology 53 (2000) 1421-1437
4. Breen S.M., Farris K.L., Rodriguez-Zas S.L., and Knox R.V. Effect of age and physical or fence-line boar exposure on estrus and ovulation response in prepubertal gilts administered pg600. J. Anim. Sci. 83 (2005) 460-465
5. Breen S.M., Rodriguez-Zas S.L., and Knox R.V. Effect of altering dose of pg600 on reproductive performance responses in prepubertal gilts and weaned sows. Anim. Reprod. Sci. 95 (2006) 316-323
6. Britt J.H., Day B.N., Webel S.K., and Brauer M.A. Induction of fertile estrus in prepuberal gilts by treatment with a combination of pregnant mare's serum gonadotropin and human chorionic gonadotropin. J. Anim. Sci. 67 (1989) 1148-1153
7. Brooks P.H., and Smith D.A. The effect of mating age on the reproductive performance, food utilisation and liveweight change of the female pig. Livest. Prod. Sci. 7 (1980) 67-78
8. Dial G., Dial O., Bevier G., Glenn S., and Dziuk P. Estrous behavior and circadian discharge of luteinizing hormone in the prepubertal gilt in response to exogenous estrogen. Biol. Reprod. 29 (1983) 1047-1056
9. do Lago V., et al. Second oestrus synchronization and precocious embryo viability after puberty induction in gilts by the use of gonadotrophin treatment. Reprod. Dom. Anim. 40 (2005) 141-144
10. Evans A.C.O., and O'Doherty J.V. Endocrine changes and management factors affecting puberty in gilts. Livest. Prod. Sci. 68 (2001) 1-12
11. Ferguson E.M., et al. Effect of different nutritional regimens before ovulation on plasma concentrations of metabolic and reproductive hormones and oocyte maturation in gilts. Reproduction 126 (2003) 61-71
12. Filicori M., Cognigni G.E., Pocognoli P., Ciampaglia W., and Bernardi S. Current concepts and novel applications of LH activity in ovarian stimulation. Trends Endocrin. Metab. 14 (2003) 267-273
13. Flowers B., Cantley T.C., Martin M.J., and Day B.N. Episodic secretion of gonadotrophins and ovarian steroids in jugular and utero-ovarian vein plasma during the follicular phase of the oestrous cycle in gilts. J. Reprod. Fert. 91 (1991) 101-112
14. Guthrie H.D., Pursel V.G., and Wall R.J. Porcine follicle-stimulating hormone treatment of gilts during an altrenogest-synchronized follicular phase: Effects on follicle growth, hormone secretion, ovulation, and fertilization. J. Anim. Sci. 75 (1997) 3246-3254
15. Hughes P.E., and Cole D.J.A. Reproduction in the gilt. 2. The influence of gilt age at boar introduction on the attainment of puberty. Anim. Prod. 23 (1976) 89-94
16. Hughes P.E., Pearce G.P., and Paterson A.M. Mechanisms mediating the stimulatory effects of the boar on gilt reproduction. J. Reprod. Fertil. Suppl. 40 (1990) 323-341
17. Hughes P.E., and Varley M.A. Lifetime performance of the sow. In: Wiseman J., Varley M.A., and Kemp B. (Eds). Perspectives in Pig Science (2003), Nottingham University Press 333-335
18. Kemp B., Soede N.M., and Langendijk P. Effects of boar contact and housing conditions on estrus expression in sows. Theriogenology 63 (2005) 643-656
19. Kingsbury D.L., and Rawlings N.C. Effect of exposure to a boar on circulating concentrations of lh, fsh, cortisol and oestradiol in prepubertal gilts. J. Reprod. Fertil. 98 (1993) 245-250
20. Kirkwood R.N., Aherne F.X., Monaghan P.G., and Misutka S.C. Breeding gilts at natural or a hormone-induced estrus: effects on performance over four parities. Swine Health Prod. 8 (2000) 177-179
21. Knox R.V. Recruitment and selection of ovarian follicles for determination of ovulation rate in the pig. Dom. Anim. Endocrinol. 29 (2005) 385-397
22. Knox R.V., Tudor K.W., Rodriguez-Zas S.L., and Robb J.A. Effect of subcutaneous vs intramuscular administration of p.G. 600 on estrual and ovulatory responses of prepubertal gilts. J. Anim. Sci. 78 (2000) 1732-1737
23. Koketsu Y., Takahashi H., and Akachi K. Longevity, lifetime pig production and productivity, and age at first conception in a cohort of gilts observed over six years on commercial farms. J. Vet. Med. Sci. 61 (1999) 1001-1005
24. Liu J., et al. Growth and the initiation of steroidogenesis in porcine follicles are associated with unique patterns of gene expression for individual components of the ovarian insulin-like growth factor system. Biol. Reprod. 63 (2000) 942-952
25. Manjarin, R., Dominguez, J.C., Castro, M.J., Vallado, B., Rodriguez, S., Sprecher, D.J., Cassar, G., Friendship, R.M., Kirkwood, R.N. Effect of prior FSH treatment on the estrus and ovulation responses to eCG in prepubertal gilts. Anim. Reprod. Sci., in press (Epub ahead of print).
26. Martinat-Botte F., Bariteau F., Badouard B., and Terquie M. Control of pig reproduction in a breeding programme. J. Reprod. Fertil. Suppl. 33 (1985) 211-228
27. Murphy B.D., and Dobias M. Homologous and heterologous ligands downregulate follicle-stimulating hormone receptor mrna in porcine granulosa cells. Mol. Reprod. Dev. 53 (1999) 198-207
28. Paterson A.M. The controlled induction of puberty. Control of Pig Reproduction (1982) pp. 139-160
29. Rissman E.F. Behavioral regulation of gonadotropin-releasing hormone. Biol. Reprod. 54 (1996) 413-419
30. Rissman E.F., Li X., King J.A., and Millar R.P. Behavioral regulation of gonadotropin-releasing hormone production. Brain Res. Bull. 44 (1997) 459-464
31. Shores E.M., and Hunter M.G. Immunohistochemical localization of steroidogenic enzymes and comparison with hormone production during follicle development in the pig. Reprod Fert and Dev 11 (1999) 337-344
32. Smits R.J., Luxford B.G., Morley W.C., Hughes P.E., and Kirkwood R.N. Boar exposure increases conception rate in induced 'once bred' pre-pubertal gilts. In: Cranwell P.D. (Ed). Manipulating Pig Production no. 8 (2001), Australasian Pig Science Association, Werribee 194
33. Tilton S.L., Bates R.O., and Prather R.S. Evaluation of response to hormonal therapy in prepubertal gilts of different genetic lines. J. Anim. Sci. 73 (1995) 3062-3068
34. van Wettere W.H.E.J., Revell D.K., Mitchell M., and Hughes P.E. Increasing the age of gilts at first boar contact improves the timing and synchrony of the pubertal response but does not affect potential litter size. Anim. Reprod. Sci. 95 (2006) 97-106
35. van Wettere W.H.E.J., and Hughes P.E. Gilt management, oocyte quality and embryo survival. In: Wiseman J., Varley M.A., McOrist S., and Kemp B. (Eds). Paradigms in Pig Science (2007), Nottingham University Press 329-358
36. Varley M.A., English P.R., Davidson F.M., MacPherson O., and Pawley P. Control of oestrus and ovulation in peri-pubertal gilts with allyltrenbolone or a combination of natural gonadotrophins. Vet. Rec. 124 (1989) 186-189
37. Virolainen J.V., Tast A., Sorsa A., Love R.J., and Peltoniemi O.A. Changes in feeding level during early pregnancy affect fertility in gilts. Anim. Reprod. Sci. 80 (2004) 341-352
38. Whittemore C.T. Nutrition reproduction interactions in primiparous sows. Livest. Prod. Sci. 46 (1996) 65-83
39. Ziecik A.J., et al. Influence of estrus synchronization of prepubertal gilts on embryo quality. J. Reprod. Dev. 51 (2005) 379-384