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Reproductive physiology in the pig with special reference to early weaning

Published online by Cambridge University Press:  02 September 2010

C. Polge
C. Polge
Affiliation:
ARC Unit of Reproductive Physiology and Biochemistry, 307 Huntingdon Road, Cambridge
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Extract

The object of this paper is to review some aspects of reproductive physiology in the pig, especially in relation to conditions after farrowing when reproductive ability is normally inhibited by lactation and suckling, and when weaning at different periods after parturition may have a profound influence on the chances of successful conception and pregnancy. In undertaking this review, however, it soon became clear that very few detailed experimental studies had been carried out in sows during the period immediately following parturition. It was considered best, therefore, to compare some of the situations which exist in pigs at other reproductive stages with what little is known about the sow at the post partum stage and during lactation.

Type
53rd Meeting, London, 5 to 7 March 1971 Symposium: Artificial Rearing of Pigs
Information
Proceedings of the British Society of Animal Production (1972) , Volume 1 , January 1972 , pp. 5 - 18
Copyright
Copyright © British Society of Animal Production 1972

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References

Allen, A. D., Lasley, J. F. and Uren, A. W. 1957. The effects of gonadotrophic hormone injections on induction of estrus in lactating sows. J. Anim. Sci. 16: 1097–1098 (Abstr.).Google Scholar
Anderson, R. R. and Mcshan, W. H. 1966. Luteinizing hormone levels in pig, cow and rat blood plasma during the estrous cycle. Endocrinology 78: 976–982.CrossRefGoogle ScholarPubMed
Baker, L. N., Woehling, H. L., Casida, L. E. and Grummer, R. H. 1953. Occurrence of estrus in sows following parturition. J. Anim. Sci. 12: 33–38.Google Scholar
Baker, R. D. and Ciggins, E. G. 1968. Control of ovulation rate and fertilization in prepuberal gilts. J. Anim. Sci. 27: 1607–1610.Google Scholar
Baker, R. D. and Dziuk, P. J. 1970. Aerial transport of fertilized pig ova. Can. J. Anim. Sci. 5O: 215–216.CrossRefGoogle Scholar
Tebrake, J. H., Koomans, P. and Boeve, J. 1971. [The rearing of piglets in cages. I. The ultra-early weaning of piglets and the fertility of sows.] Bedrifjsontwikkeling Veehouder. 2: 73]87.Google Scholar
Burger, J. F. 1952. Sex physiology of pigs. Onderstepoort. J. Vet. Res. Suppl. 2: 3]218.Google Scholar
Buttle, H. L. and Hancock, J. L. 1967. The control of ovulation in the sow. J. Reprod. Fert. 14: 485–487.Google Scholar
Casida, L. E. 1935. Prepuberal development of the pig ovary and its relation to stimulation with gonadotrophic hormones. Anat. Rec. 61: 389–396.Google Scholar
Cole, H. H. and Hughes, E. H. 1946. Induction of estrus in lactating sows with equine gonadotrophin. J. Anim. Sci. 5: 25–29.Google Scholar
Corner, G. W. 1921. Cyclic changes in the ovaries and uterus of the sow, and their relation to the mechanism of implantation. Contr. Embryol. 13: 119–146.Google Scholar
Crighton, D. B. 1964. The effects of lactation and weaning on the pituitary gonadotrophins of the sow. Proc. 5th int. Congr. Anim. Reprod. A.I., Trento, 2: 349–354.Google Scholar
Crighton, D. B. 1967. Effects of lactation on the pituitary gonadotrophins of the sow. In Reproduction in the Female Mammal, (ed. Lamming, G. E. and C. Amoroso, E.), pp. 223–238. Butterworth, London.Google Scholar
Crighton, D. B. 1968. Depletion of rat ovarian ascorbic acid by a factor other than luteinizing hormone present in the blood of the pig. J. Reprod. Fert. 15: 457–459.Google Scholar
Crighton, D. B. 1970. Induction of pregnancy during lactation in the sow. J. Reprod. Fert. 22: 223–231.Google Scholar
Crighton, D. B. and Lamming, G. E. 1969. The lactational anoestrus of the sow: the status of the anterior pituitary-ovarian system during lactation and after weaning. J.Endocr. 43: 507–519.Google Scholar
Cromble, P. R. 1970. Ultrastructure of the foetal-maternal attachment in the pig. J. Physiol. Lond. 210: 101p–102p.Google Scholar
Day, B. N., Anderson, L. L., Hazel, L. N. and Melampy, R. M. 1959. Gonadotrophic and lactogenic hormone potencies of gilt pituitaries during the estrous cycle and pregnancy. J. Anim. Sci. 18: 675–682.CrossRefGoogle Scholar
Day, B. N. and Polge, C. 1968. Effects of progesterone on fertilization and egg transport in the pig. J. Reprod. Fert. 17: 227–230.Google Scholar
Day, B. N., Polge, C, Moor, R. M., Rowson, L. E. A. and Booth, W. D. 1967. Local effect of the uterus on the corpora lutea of early pregnancy in swine. J. Anim. Sci. 26: 1499.Google Scholar
Dhindsa, D. S. and Dziuk, P. J. 1968. Influence of varying the proportion of uterus occupied by embryos on maintenance of pregnancy in the pig. J. Anim. Sci. 27: 668–672.Google Scholar
Dhindsa, D. S., Dziuk, P. J. and Norton, H. W. 1967. Time of transuterine migration and distribution of embryos in the pig. Anat. Rec. 159: 325–330.CrossRefGoogle ScholarPubMed
Du Mesnil Du Buisson, F. 1954. Possibilité d'ovulation et de fecondation chez la truie avant la puberté. Annls Endocr. 15: 333–340.Google Scholar
Du Mesnil Du Buisson, F. 1966. Contribution a l'etude du maintien du corps jaune de la truie. Thesis, Paris. Google Scholar
Du Mesnil Du Buisson, F. and Dauzier, L. 1957. Influence de l'ovariectomie chez la truie pendant la gestation. C. r. Séanc. Soc. Biol. 151: 311–313.Google Scholar
Du Mesnil Du Buisson, F. and Signoret, J. P. 1968. Influence de l'intervalle entre la fin de la lactation et l'oestrus sur les résultats de l'insémination artiflcielle ultérieure de la truie. Proc. 6th int. Congr. Anim. Reprod., Paris, 2: 1091–1094.Google Scholar
Dziuk, P. J. 1970. Estimation of optimum time for insemination of gilts and ewes by double-mating at certain times relative to ovulation. J. Reprod. Fert. 22: 277–282.Google Scholar
Dziuk, P. J. and Baker, R. D. 1962. Induction and control of ovulation in swine. J. Anim. Sci. 21: 697–699.Google Scholar
Dziuk, P. J. and Gehlbach, G. D. 1966. Induction of ovulation and fertilization in the immature gilt. J. Anim. Sci. 25: 410–413.Google Scholar
Dziuk, P. J. and Polge, C. 1965. Fertility in gilts following induced ovulation. Vet. Rec. 77: 236–239.Google ScholarPubMed
Dziuk, P. J., Polge, C. and Rowson, L. E. 1964. Intra-uterine migration and mixing of embryos in swine following egg transfer. J. Anim. Sci. 23: 37–42.Google Scholar
Edgerton, L. A. and Erb, R. E. 1971. Metabolites of progesterone and estrogen in domestic sow urine. I. Effect of pregnancy. J. Anim. Sci. 32: 515–524.Google Scholar
Ellicott, A. R., Dziuk, P. J. and Polge, C. 1969. Maintenance of pregnancy in the prepuberal gilt. J. Anim. Sci. 29: 189 (Abstr.).Google Scholar
Epstein, H. and Kadmon, S. 1969. Physiological and economic feasibility of hormonally induced ovulation in lactating Large White sows. J. agric. Sci. Camb. 72: 365–370.Google Scholar
Groves, T. W. 1968. Field experiments on the precise control of insemination dates in pigs. Proc. 6th int. Congr. Anim. Reprod. A.I., Paris, 2: 1449–1451.Google Scholar
Hancock, J. L. and Buttle, H. L. 1968. Tubal transport and fertilization of ova in gonadotrophin-treated pigs. J. Reprod. Fert. 16: 261–270.CrossRefGoogle ScholarPubMed
Heitman, H., Jr. and Cole, H. H. 1956. Further studies on the induction of estrus in lactating sows with equine gonadotrophin. J. Anim. Sci. 15: 970–977.Google Scholar
Hollandbeck, R., Baker, B. Jr., Norton, H. W. and Nalbandov, A. V. 1956. Gonadotrophic hormone content of swine pituitary glands in relation to age. J. Anim. Sci. 15: 418–427.CrossRefGoogle Scholar
Hunter, R. H. F. 1967a. Polyspermic fertilization in pigs during the luteal phase of the estrous cycle. J. exp. Zool. 165: 451–459.Google Scholar
Hunter, R. H. F. 1967b. Porcine ovulation after injection of human chorionic gonadotrophin. Vet. Rec. 81: 21–23.CrossRefGoogle ScholarPubMed
Kirkpatrick, R. L., Lauderdale, J. W., First, N. L., Hauser, E. R. and Casida, L. E. 1965. Ovarian and pituitary gland changes in post partum sows treated with FSH. J. Anim. Sci. 24: 1104–1106.Google Scholar
Lauderdale, J. W., Kirkpatrick, R. L., First, N. L., Hauser, E. R. and Casida, L. E. 1965. Ovarian and pituitary gland changes in periparturient sows. J. Anim. Sci. 24: 1100–1103.Google Scholar
Liptrap, R. M. and Raeside, J. I. 1966. Luteinizing hormone activity in blood and urinary oestrogen excretion by the pig at oestrus and ovulation. J. Reprod. Fert. 11: 439–446.Google Scholar
Longenecker, D. E. and Day, B. N. 1968. Fertility level of sows superovulated at postweaning estrus. J. Anim. Sci. 27: 709–711.Google Scholar
Majerciak Von, P., Smidt, D., Schahidi, R. and Harms, E. 1969. [Studies on obtaining ova from infantile female pigs. I. Ovarian reactions to gonadotrophic stimulation of infantile and prepuberal female Improved Landrace pigs.] Z. Tierzücht. ZüchtBiol. 86: 89–100.Google Scholar
Majerciak Von, P., Smidt, D., Schahidi, R. and Harms, E. 1970. [Studies on obtaining ova from infantile female pigs. II. Uterine reactions and ova recovery following gonadotrophic stimulation from infantile and prepuberal Improved Landrace pigs.] Z. Tierzücht. ZüchtBiol. 86: 216–231.Google Scholar
Melampy, R. M., Henricks, D. M., Anderson, L. L., Chen, C. L. and Schultz, J. R. 1966. Pituitary follicle-stimulating hormone and luteinizing hormone concentrations in pregnant and lactating pigs. Endocrinology 78: 801–804.Google Scholar
Moody, N. W., Baker, D. S., Hays, V. W. and Speer, V. C. 1969. Effect of reduced farrowing interval on sow productivity. J. Anim. Sci. 28: 76–79.Google Scholar
Moody, N. W. and Speer, V. C. 1971. Factors affecting sow farrowing interval. J. Anim. Sci. 32: 510–514.Google Scholar
Murray, F. A. Jr., Bazer, F. W., Rundell, J. W., Vincent, C. K., Wallace, H. D. and Warnick, A. C. 1971. Developmental failure of swine embryos restricted to the oviducal environment. J. Reprod. Fert. 24: 445–448.CrossRefGoogle Scholar
Niswender, G. D., Reichert, L. E., Jr., and Zimmerman, D. R. 1970. Radioimmunoassay of serum levels of luteinizing hormone throughout the estrous cycle in pigs. Endocrinology 87: 576–580.Google Scholar
Palmer, W. M., Teague, H. S. and Venzke, W. G. 1965a. Macroscopic observations on the reproductive tract of the sow during lactation and early post weaning. J. Anim. Sci. 24: 541–545.Google Scholar
Palmer, W. M., Teague, H. S. and Venzke, W. G. 1965. Histological changes in the reproductive tract of the sow during lactation and early post weaning. J. Anim. Sci. 24: 1117–1125.Google Scholar
Parlow, A. F., Anderson, L. L. and Melampy, R. M. 1964. Pituitary follicle-stimulating hormone and luteinizing hormone concentrations in relation to reproductive stages of the pig. Endocrinology 75: 365–376.Google Scholar
Peters, J. B., First, N. L. and Casida, L. E. 1969. Effects of pig removal and oxytocin injections on ovarian activity and pituitary changes in mammillectomized post partum sows. J. Anim. Sci. 28: 537–541.Google Scholar
Peters, J. B., Short, R. E., First, N. L. and Casida, L. E. 1969. Attempts to induce fertility in post partum sows. J. Anim. Sci. 29: 20–24.CrossRefGoogle Scholar
Polge, C. and Day, B. N. 1969. Induction of estrus and ovulation in swine during pituitary suppression with methallibure. J. Anim. Sci. 28: 73–75.Google Scholar
Polge, C., Day, B. N. and Groves, T. W. 1968. Synchronization of ovulation and artificial insemination in pigs. Vet. Rec. 83: 136–142.Google Scholar
Polge, C. and Dziuk, P. J. 1970. Time of cessation of intrauterine migration of pig embryos. J. Anim. Sci. 31: 565–566.Google Scholar
Polge, C, Rowson, L. E. A. and Chang, M. C. 1966. The effect of reducing the number of embryos during early stages of gestation on the maintenance of pregnancy in the pig. J. Reprod. Fert. 12: 395–397.Google Scholar
Radford, P. 1965. Synchronization of ovulation in sows at the first post-weaning oestrus. Vet. Rec. 77: 239–241.Google ScholarPubMed
Raeside, J. I. 1963a. Urinary oestrogen excretion in the pig at oestrus and during the oestrous cycle. J. Reprod. Fert. 6: 421–426.Google Scholar
Raeside, J. I. 1963b. Urinary oestrogen excretion in the pig during pregnancy and parturition. J. Reprod. Fert. 6: 427–431.Google Scholar
Rayford, P. L., Brinkley, H. J. and Young, E. P. 1971. Radioimmunoassay determination of LH concentration in the serum of female pigs. Endocrinology 88: 707–713.Google Scholar
Rigor, E. M., Villareal, R. L. and Ilagan, H. P. 1968. Estrus induction in sows with diethylstilbestrol. Proc. 6th int. Congr. Anim. Reprod. A.I., Paris, 2: 1519–1521.Google Scholar
Robinson, G. E., Jr., and Nalbandov, A. V. 1951. Changes in the hormone content of swine pituitaries during the estrual cycle. J. Anim. Sci. 10: 469–478.CrossRefGoogle ScholarPubMed
Rombauts, P., Fevre, J. and Terqui, M. 1971. Oestrogens et progestogenes au cours du cycle reproduction de la truie. Journ. Rech. pore, en France, Paris, 1971, 173–178.Google Scholar
Rothchild, J. 1967. The neurologic basis for the anovulation of the luteal phase, lactation and pregnancy. In Reproduction in the Female Mammal (ed. Lamming, G. E. and Amoroso, E. C.), pp. 30–54. Butterworth, London.Google Scholar
Self, H. L. and Grummer, R. H. 1958. The rate and economy of pig gains and the reproductive behaviour in sows when litters are weaned at 10 days, 21 days, or 56 days of age. J. Anim. Sci. 17: 862–868.Google Scholar
Shaw, G. A., Mcdonald, B. E. and Baker, R. D. 1969. Utero-ovarian interrelationships in prepuberal and gonadotrophin treated gilts. Can. J. Anim. Sci. 50: 185–190.Google Scholar
Shaw, G. A., Mcdonald, B. E. and Baker, R. D. 1971. Fetal mortality in the prepuberal gilt. Can. J. Anim. Sci. 51: 233–236.Google Scholar
Short, R. V. 1960. Blood progesterone levels in relation to parturition. J. Reprod. Fert. 1: 61-70.Google Scholar
Smidt, D., Jöchle, W. and Thume, O. 1968. Heat synchronisation by androgen-oestrogen combinations in sows and gilts. Proc. 6th int. Congr. Anim. Reprod. A.I., Paris, 2: 1523–1526.Google Scholar
Smidt, D., Sxheven, B. and Steinbach, J. 1965. [The influence of lactation on sexual functions in sows.] Ziichtungskunde 37: 23–36.Google Scholar
Smidt, D., Thume, O. and Jöchle, W. 1969. [Investigations on post partum sexual regeneration in suckling and non-lactating sows.] Züchtungskunde 41: 36–45.Google Scholar
Smith, D. M. 1961. The effect of daily separation of sows from their litters upon milk yield, creep intake and energetic efficiency. N.Z. Jl agric. Res. 4: 232–245.Google Scholar
Stabenfeldt, G. H., Akins, E. L., Ewing, L. L. and Morrissettee, M. C. 1969. Peripheral plasma progesterone levels in pigs during the oestrous cycle. J. Reprod. Fert. 20: 443–449.Google Scholar
Thimonier, J., Mauleon, P. and Du Mesnil Du Buisson, F. 1968. [The action of an intravaginal progestagen (FGA) on heat and fertility of the sow at the end of lactation.] Proc. 6th int. Congr. Anim. Reprod. A.I., Paris, 2: 1531–1534.Google Scholar
Warnick, A. C, Casida, L. E. and Grummer, R. H. 1950. The occurrence of estrus and ovulation in postpartum sows. J. Anim. Sci. 9: 66–72.Google Scholar
Webel, S. K., Peters, J. B. and Anderson, L. L. 1970. Synchronous and asynchronous transfer of embryos in the pig. J. Anim. Sci. 30: 565–568.CrossRefGoogle Scholar