Successful termination of undesirable pregnancy during first trimester in mare

Authors

  • Sajjan Kumar ICAR-National Research Centre on Equines, Bikaner, Rajasthan
  • Yash Pal ICAR-National Research Centre on Equines, Bikaner, Rajasthan
  • Ram Avatar Legha ICAR-National Research Centre on Equines, Bikaner, Rajasthan
  • Thirumala Rao Talluri ICAR-National Research Centre on Equines, Bikaner, Rajasthan

DOI:

https://doi.org/10.48165/ijar.2022.43.1.18

Keywords:

Mare, Pregnancy, Termination, Prostaglandin, Progesterone

Abstract

A seven-year-old Marwari mare that was routinely used in semen collection programme was mismated by a fertile stallion.  The mare was active and alert and all the clinical and hematological parameters were observed to be normal at the time of examination of pregnancy. Rectal examination of the mare through ultrasonography on day 15 revealed an embryonic vesicle confirming the pregnancy.   Initially, the pregnancy was tried to terminate with prostaglandins and prostaglandins in combination with oxytocin, but, the pregnancy persisted and the levels of progesterone (P4) were observed to be elevated.  Manual crushing for pregnancy termination was also tried but proved unsuccessful. Uterine lavage by infusing the weak iodine solution in combination with Ringer’s lactate helped in flushing out the conceptus and the levels of P4 were also observed to decrease after the expulsion and the uterus was also found to be devoidof any fluid. The mare showed uneventful recovery and exhibited regular cycles later on and did not show up any abnormalities in conceiving in the consecutive cycles.

References

Bo, G., Fernandez, M., Barth, A. and Mapletoft, R. (1992). Reduced incidence of retained placenta with induction of parturition in the cow. Theriogenology, 38(1): 45-61.

Daels, P. F., Mohammed, H., Montavon, S., Stabenfeldt, G., Hughes, J., Odensvik, K. and Kindahl, H. (1995). Endogenous prostaglandin secretion during cloprostenol-induced abortion in mares. Anim. Reprod. Sci., 40(4): 305-321.

Douglas, R., Squires, E. and Ginther, O. (1974). Induction of abortion in mares with prostaglandin F2α. J. Anim. Sci., 39(2): 404-407.

Dutt, R., Singh, G., Gahalot, S.C., Yadav, V., Patil, S.S.and Sharma, K. (2018). Fetal Maceration in a Cross-Bred Holstein Friesian Cow-A CaseReport. Int. J. Pure App. Biosci., 6(1): 1288-1290.

Kirkden, R., Broom, D. andAndersen, I. (2013). Piglet mortality: the impact of induction of farrowing using prostaglandins and oxytocin. Anim. Reprod. Sci, 138(1-2): 14-24.

Lewing, F. J., Proulx, J., and Mapletoft, R. J. (1985). Induction of parturition in the cow using cloprostenol and dexamethasone in combination. The Canadian. Vet.J, 26(10): 317.

Lofstedt, R. (1986). Termination of unwanted pregnancy in the mare Current Therapy in Theriogenology2nd ed., WB Saunders, Philadelphia.pp. 715-717

Nasser, L., Rezende, L., Bo, G. andBarth, A. (2008). Induction of parturition in Zebu-cross recipients carrying in vitro-produced Bos indicus embryos. Theriogenology, 69(1): 116-123.

Paccamonti, D. (1991). Elective termination of pregnancy in mares. J.American Vet. Med.Assoc, 198(4): 683-689.

Phogat, J., Bugalia, N. andGupta, S. (1994). Clinical efficacy of dexamethasone in prolonged gestation and valethamate bromide in dystocia due to insufficient dilation of cervix in buffalos (bubalus-bubalis). Ind. Vet. J, 71(11): 1085-1087.

Purohit, G., Shekher, C., Kumar, P. andSolanki, K. (2012). Induced termination of pregnancy in domestic farm animals. Iran. J. Appl. Anim. Sci. 2(1): 1-12.

Pycock J. (2008). Problems in late pregnancy. Pp. 241-243. 10th International Congr World Equine. Vet. Assoc. Moscow.

Ragon, A. C. (2007). Induced abortion Current Therapy in Large Animal Theriogenology (pp. 196-198): Elsevier.

Rathwell, A., Asbury, A., Hansen, P. andArchbald, L. (1987). Reproductive function of mares given daily injections of prostaglandin F2α beginning at day 42 of pregnancy. Theriogenology, 27(4): 621-630.

Roberts, S. J. (2004). Veterinary obstetrics and genital diseases: CBS Publishers & Distributors Pvt. Limited.

Squires, E. andBosu, W. (1993). Induction of abortion during early to midgestation Equine Reproduction (pp. 563-566): Lea & Febiger, Philadelphia.

Squires, E., Hillman, R., Pickett, B. andNett, T. (1980). Induction of abortion in mares with Equimate: effect on secretion of progesterone, PMSG and reproductive performance. J.A.Sci, 50(3): 490-495.

Stellflug, J., Weems, Y. andWeems, C. (1997). Clinical reproductive physiology of ewes. Current Therapy in Large Animal Theriogenology. WB Saunders, Philadelphia.pp 594-598.

Youngquist, R. S. andThrelfall, W. R. (2006). Current therapy in large animal theriogenology: Elsevier Health Sciences.

Downloads

Published

2022-05-06

How to Cite

Kumar, S., Pal, Y., Legha, R.A., & Talluri, T.R. (2022). Successful termination of undesirable pregnancy during first trimester in mare. The Indian Journal of Animal Reproduction, 43(1), 86–89. https://doi.org/10.48165/ijar.2022.43.1.18