Indian Journal of Animal Research

  • Chief EditorK.M.L. Pathak

  • Print ISSN 0367-6722

  • Online ISSN 0976-0555

  • NAAS Rating 6.50

  • SJR 0.263

  • Impact Factor 0.4 (2024)

Frequency :
Monthly (January, February, March, April, May, June, July, August, September, October, November and December)
Indexing Services :
Science Citation Index Expanded, BIOSIS Preview, ISI Citation Index, Biological Abstracts, Scopus, AGRICOLA, Google Scholar, CrossRef, CAB Abstracting Journals, Chemical Abstracts, Indian Science Abstracts, EBSCO Indexing Services, Index Copernicus
Indian Journal of Animal Research, volume 51 issue 3 (june 2017) : 438-443

Effect of supplementation of hCG or GnRH on ovulation and subsequent embryo production of eCG superovulated goats

M.R. Rahman, M.M. Rahman, W.E. Wan Khadijah, R.B. Abdullah*
1<p>Animal Biotechnology-Embryo Laboratory (ABEL), Institute of Biological Sciences,&nbsp;Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia.</p>
Cite article:- Rahman M.R., Rahman M.M., Khadijah Wan W.E., Abdullah* R.B. (2016). Effect of supplementation of hCG or GnRH on ovulation and subsequentembryo production of eCG superovulated goats . Indian Journal of Animal Research. 51(3): 438-443. doi: 10.18805/ijar.11166.

The aim of this study was to enhance the ovulation and subsequent embryo production of equine chorionic gonadotrophin (eCG) superovulated goats by supplementing with human chorionic gonadotrophin (hCG) or gonadotrophin releasing hormone (GnRH). Thirty crossbred donor does were oestrus synchronized using controlled internal drug release (CIDR) device and superovulated using 1500 IU eCG. Then all the donor does were randomly divided into 3 groups. Group 1 were administered 500 IU hCG each at 2 successive days starting from 24 hours after CIDR removal; Group 2 received a single dosage of 20 µg GnRH and Group 3 was control. Ovulation and embryo production responses were evaluated during laparotomy session on Day 7 after CIDR removal. Does in Group 1 showed higher number of CL (10.90) than the Group 2 (1.90) or Group 3 (0.90). The number of ovarian stimulation and number of anovulatory follicles had no significant (P>0.05) differences among the treatment groups. Average number of structure recovered was significantly (P<0.05) higher in Group 1 (3.10) than Group 2 (0.70) or Group 3 (0.00). Moreover, average number of embryo production was higher in Group 1 (0.90) than Group 2 (0.50) and Group 3 (0.00), but no significant difference was observed between Group 1 and Group 2. Results indicated that using hCG hormone would be an effective means for increasing ovulation in eCG superovulated crossbred goats, although it was unable to enhance the embryo number due to increase number of unfertilised ovum. 


  1. Aslan, S., Arslanbas, D., Beindorff, N. and Bollwein, H. (2011). Effects of induction of ovulation with GnRH or hCG on follicular and luteal blood flow in holstein-friesian heifers. Reprod. Domest. Anim., 46: 781-786.

  2. Baldassarre, H., Wang, B., Gauthier, M., Neveu, N., Lazaris, A. and Karatzas, C.N. (2004). Effect of GnRH injection timing in the production of pronuclear-stage zygotes used for DNA microinjection. Zygote, 12: 257-261.

  3. Cognie, Y. (1999). State of the art in sheep-goat embryo transfer. Theriogenology, 51: 105-116.

  4. D’Occhio, M.J., Jillella, D. and Lindsey, B.R. (1999). Factors that influence follicle recruitment, growth and ovulation during ovarian superstimulation in heifers: opportunities to increase ovulation rate and embryo recovery by delaying the exposure of follicles to LH. Theriogenology, 51: 9-35.

  5. Fonseca, J.F., Bruschi, J.H., Santos, I.C.C., Viana, J.H.M. and Magalhaes, A.C.M. (2005). Induction of estrus in non-    lactating dairy goats with different estrous synchrony protocols. Anim. Reprod. Sci., 85: 117-124.

  6. Fonseca, J.F., Maffili, V.V., Rodrigues, M.T., Santos, A.D.F., Rovay, H., Pinto Neto, A., Brandao, F.Z. and Torres, C.A.A. (2006). Effects of hCG on progesterone concentrations and fertility in cyclic, lactating Alpine goats. Anim. Reprod. Sci., 4: 410-414.

  7. Forcada, F., Amer-Meziane, M.A., Abecia, J.A., Maurel, M.C., Cebrián-Pérez, J.A., Muiño-Blanco, T., Asenjo, B., Vázquez, M.I. and Casao, A. (2011). Repeated superovulation using a simplified FSH/eCG treatment for in vivo embryo production in sheep. Theriogenology, 75: 769-776.

  8. Garcia-Garcia, R.M. (2003). Estudio de los efectos del cultivo y la congelacion en la viabilidad de los embriones ovinos en estadios previos a la compactacion (Study of the effects of culture and freezing on viability of preimplantational embryo stages). Madrid: INIA Press.

  9. Goel, A.K. and Agrawal, K.P. (1990). Superovulation and embryo collection in Jamunapari goats. Theriogenology, 33: 232.

  10. Goel, A.K. and Agrawal, K.P. (2005). Ovulatory response and embryo yield in Jakhrana goats following treatments with PMSG and FSH. Trop. Anim. Health Prod., 37: 549-558.

  11. Greyling, J.P.C. and van Niekerk, C.H. (1990). Ovulation in the Boer goat doe. Small Ruminant Res., 3: 457-464.

  12. Hafez, B. and Hafez, E. (2000). Reproduction in Farm Animals. 7th ed. Lippincott William and Wilkins. Pennsylvania, USA, Chapter 29: 405-430.

  13. Heidari, F., Gharagozloo, F., Vojgani, M., Farrokhi, N., Vajhi, A.R., Masoudifard, M., Mirtorabi, M. and Fasaei, B.N. (2010). The effect of a GnRH antagonist pre-treatment, in the superovulation of goats. Small Ruminant Res., 93: 140-143.

  14. Holtz, W., Sohnrey, B., Gerland, M. and Driancourt, M.A. (2008). Ovsynch synchronization and fixedtime insemination in goats. Theriogenology, 69: 785-792.

  15. Howles, C.M. (2000). Role of LH and FSH in ovarian function. Mol. Cell. Endocrinol., 161: 25-30.

  16. Kaya, S., Kacar, C., Kaya, D. and Aslan, S. (2013). The effectiveness of supplemental administration of progesterone with GnRH, hCG and PGF2 on the fertility of Tuj sheep during the non-breeding season. Small Ruminant Res., 113: 365-370.

  17. Kelidari, H., Souri, M., Shabankareh, H. and Hashemi, S. (2010). Repeated administration of hCG on follicular and luteal characteristics and serum progesterone concentrations in eCG-superovulated does. Small Ruminant Res., 90: 95-100.

  18. Kendall, N.R., Gonzalez-Bulnes, A. and Campbell, B.K. (2004). The use of urinary and recombinant human FSH preparations to induce superovulation in sheep and the effect on FSH and LH concentrations. Ann. Meet. Brit. Soc. Anim. Sci., pp. 59.

  19. Khan. T.H., Beck, N.F.G. and Khalid, M. (2007). The effects of GnRH analogue (buserelin) or hCG (Chorulon) on Day 12 of pregnancy on ovarian function, plasma hormone concentrations, conceptus growth and placentation in ewes and ewe lambs. Anim. Reprod. Sci., 102: 247-257.

  20. Lindsell, C.E., Rajkumar, K., Manning, A.W., Emery, S.K., Mapletoft, R.J. and Murphy, B.D. (1986). Variability in FSH:LH ratios among batches of commercially available gonadotrophins. Theriogenology, 25: 167.

  21. McMillan, W.H., Knight, T.W. and Mcmillan, K.L. (1986). Effect of gonadotrophin releasing hormone (Buserlin) on sheep fertility. Proc. New Zeal. Soc. An., 46: 161-163.

  22. Monniaux, D., Chupin, D. and Saumande, J. (1983). Superovulatory response of cattle. Theriogenology, 19: 55-81.

  23. Motlomelo, K.C., Greyling, J.P.C. and Schwalbach, L.M.J. (2002). Synchronisation of oestrus in goats: the use of different progestagen treatments. Small Ruminant Res., 45: 45-49.

  24. Noel, B., Bister, J.L., Pierquin, B. and Paquay, R. (1994). Effects of FGA and PMSG on follicular growth and LH secretion in Suffolk ewes. Theriogenology, 41: 719-727.

  25. Nowshari, M.A., Beckers, J.F. and Holtz, W. (1995). Superovulation of goats with purified pFSH supplemented. Theriogenology, 43: 797-802. 

  26. Pampukidou, A., Alifakiotis, T., Avdi, M. and Ivanova, R. (2011). Superovulation and embryo transfer in goats by using PMSG or FSH. Agric. Sci. Tech., 3: 94-97.

  27. Pierson, J., Baldassarre, H., Keefer, C. and Downey, B. (2003). Influence of GnRH administration on timing of the LH surge and ovulation in dwarf goats. Theriogenology, 60: 397-406.

  28. Rajamahendran, R. and Sianangama, P. (1992). Effect of human chorionic gonadotrophin on dominant follicles in cows: formation of accessory corpora lutea, progesterone production and pregnancy rates. J. Reprod. Fertil., 95: 577-584.

  29. Riaz, H., Sattar, A., Arshad, M.A. and Ahmad, N. (2012). Effect of synchronization protocols and GnRH treatment on the reproductive performance in goats. Small Ruminant Res., 104: 151-155.

  30. Saharrea, A., Valencia, J., Balcazar, A., Mejia, O., Cerbon, J., Caballero, V. and Zarco, L. (1998). Premature luteal regression in goats superovulated with PMSG: effect of hCG or GnRH administration during the early luteal phase. Theriogenology, 50: 1039-1052.

  31. Saleh, M. (2011). Synchronization and Superovulation of Boer Goats with PGF2á and GnRH or hCG and Parentage Analysis Using Microsatellite Markers. Niedersächsische Staats-und Universitäts bibliothek Göttingen. PhD Thesis.

  32. Saleh, M., Shahin, M., Wuttke, W., Gauly, M. and Holtz, W. (2012). Pharmacokinetics of human chorionic gonadotropin after im administration in goats (Capra hircus). Reproduction, 144: 77-81.

  33. Schmitt, E., Diaz, T., Barros, C., De la Sota, R., Drost, M., Fredriksson, E., Staples, C., Thorner, R. and Thatcher, W. (1996). Differential response of the luteal phase and fertility in cattle following ovulation of the first-wave follicle with human chorionic gonadotropin or an agonist of gonadotropin-releasing hormone. J. Anim. Sci., 74: 1074-1083.

  34. Sheldon, I. and Dobson, H. (1993). Effects of gonadotrophin releasing hormone administered 11 days after insemination on the pregnancy rates of cattle to the first and later services. Vet. Rec., 133: 160-163.

  35. Sneha, S.P., Raji, K.M, Promod, K. and Ramachandran, K. (2015). Progesterone profile of goats subjected to oestrus synchronization and its relevance in predicting pregnancy outcome. Adv. Anim. Vet. Sci., 3: 207-210.

  36. Taponen, J., Hjerppe, P., Kopra, E., Rodriguez-Martinez, H., Katila, T. and Kindahl, H. (2003). Premature prostaglandin F2a secretion causes luteal regression in GnRH-induced short estrous cycles in cyclic dairy heifers. Theriogenology, 60: 379-393.

  37. Veiga-Lopez, A., Gonzalez-Bulnes, A., Tresguerres, J., Dominguez, V., Ariznavarreta, C. and Cocero, M. (2006). Causes, characteristics and consequences of anovulatory follicles in superovulated sheep. Domest. Anim. Endocrinol., 30: 76-87.

  38. Xiao, Z.C., Wan Khadijah, WE., Abdullah, R.B. and Rahman, M.M. (2013). Effects of hormonal administration and locality influence on superovulatory responses in goats. Indian J. Anim. Sci., 83: 927-929.

Editorial Board

View all (0)