Estrus Synchronization Methods during the Non-Breeding Season of Ghezel Ewe Lambs
الموضوعات :M. Ebrahimi 1 , R. Aghamohammadzadeh 2 , G. Moghaddam 3 , H. Daghigh Kia 4
1 - Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
2 - Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
3 - Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
4 - Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
الکلمات المفتاحية: progesterone, ewe lamb, clomiphene citrate, non-seasonal reproduction, re-productive,
ملخص المقالة :
Synchronization can improve the reproductive performance of ewe lambs during the non-breeding season, though seeking a simple method can be more practical for farmers. Accordingly, the study aimed to evaluate the reproductive performance of ewe lambs during the non-breeding season using different clomiphene citrate (CC) protocols compared with progesterone sponge (PS) + equine chorionic gonadotropin (eCG) protocol. In this study, 40 Ghezel ewe lambs were divided into four randomly groups: 1) PS + eCG group: PS insertion (day 0-12) + 500 IU eCG injection on day 12; 2) PS + CC group: PS insertion (day 0-12) + oral administration of 100 mg CC/day (day 7-12); 3) CC + eCG group: oral administration of 100 mg CC/day (day 7-12) + 500 IU eCG injection on day 12; 4) CC group: oral administration of 100 mg CC/day (day 7-12). Ram introduction was done for five days. Blood samples were taken on 1, 11, 14, and 40 days, and serum levels of estradiol and progesterone were measured. Pregnancy and lambing rates were also assessed. Results indicated that pregnancy and lambing rates were the highest in PS + eCG group, while the lowest or no performance was observed in CC groups (P<0.05). Based on the overall results of the present study, the best synchronization method during the non-breeding season for ewe lambs was PS + eCG compared with the CC protocols.
Ajdary M., Keyhanfar F., Aflatoonian R., Amani A., Amjadi F., Zandieh Z. and Mehdizadeh M. (2020). Design and evaluation of a novel nanodrug delivery system for reducing the side effects of clomiphene citrate on endometrium. DARU J. Pharm. Sci. 28, 423-432.
Akoz M., Bulbul B., Bozkurt Ataman M. and Dere S. (2006). Induction of multiple births in Akkaraman cross-bred sheep synchronized with short duration and different doses of progesterone treatment combined with PMSG outside the breeding season. Bull. Vet. Inst. Pulawy. 50, 97-100.
Aktaş A.H., Dursun Ş., Doğan Ş., Kiyma Z., Demirci U. and Halıcı I. (2015). Effects of ewe live weight and age on reproductive performance, lamb growth, and survival in Central Anatolian Merino sheep. Arch. Anim. Breed. 58, 451-459.
Almadaly E., Ashour M., El-Kon I., Heleil B. and Fattouh E.S. (2016). Efficacy of various synchronization protocols on the estrus behavior, lambing rate and prolificacy in rahmani egyptian ewes during the non-breeding season. Asian J. Anim. Vet. Adv. 11, 34-43.
Al-Waeli A.M., Al-Yawer M.A. and Haddad F.Y.S. (2011). Effects of Tribuls terrestris (Quttub) and clomiphene citrate on ovaries of female mice; Histological and histochemical study. Iraqi J. Med. Sci. 24, 349-360.
Baneh H., Hafezian S.H., Rashidi A., Gholizadeh M. and Rahimi G. (2010). Estimation of genetic parameters of body weight traits in Ghezel sheep. Asian-australasian J. Anim. Sci. 23, 149-153.
Bukhari S.A.A., Ali S., Zubair M., Ahmad I. and Rehman U.U. (2016). Effect of clomiphene citrate and human chorionic gonadotropin (hCG) on ovulation induction in prepubertal Sahiwal heifers. Asian Pac. J. Reprod. 5, 232-235.
Caraty A. and Skinner D.C. (1999). Progesterone priming is essential for the full expression of the positive feedback effect of estradiol in inducing the preovulatory gonadotropin-releasing hormone surge in the ewe. Endocrinology. 140, 165-170.
Chaube S.K., Tiwari M., Gupta A., Sharma A., Prasad S., Pandey A.N., Yadav P.K., Khatun S. and Shrivastav T.G. (2017). Clomiphene citrate and oocyte quality. Global J. Reprod. Med. 1, 1-3.
Dehbashi S., Vafaei H., Parsanezhad M.D. and Alborzi S. (2006). Time of initiation of clomiphene citrate and pregnancy rate in polycystic ovarian syndrome. Int. J. Gynecol. Obstet. 93, 44-48.
Dzakuma J.M., Stritzke D.J. and Whiteman J.V. (1982). Fertility and prolificacy of crossbred ewes under two cycles of accelerated lambing. J. Anim. Sci. 54, 213-220.
El-Sherry T., Derar D., Hussein H., Shahin A. and Fahmy S. (2011). Effect of clomiphene citrate on follicular recruitment, development, and superovulation during the first follicular wave in Rahmani ewes. Int. J. Endocrinol. Metab. 9, 403-408.
Gelez H., Archer E., Chesneau D., Campan R. and Fabre-Nys C. (2004). Importance of learning in the response of ewes to male odor. Chem. Senses. 29, 555-563.
Ghasemi-Panahi B., Rafat S.A., Ebrahimi M., Akbarzadeh M.H. and Hajializadeh Valiloo R. (2016). New technique for activating reproductive system during non-breeding season in Ghezel ewes. Iranian J. Appl. Anim. Sci. 6, 357-361.
Gupta C., Murugan M., Ramprabhu R., Kumar S.S. and Pandian A.S.S. (2021). Efficacy of clomiphene citrate in augmenting fertility of anoestrous goats. Indian J. Small Rumin. 27, 47-49.
Hasani N., Ebrahimi M., Ghasemi-Panahi B. and HosseinKhani A. (2018). Evaluating reproductive performance of three estrus synchronization protocols in Ghezel ewes. Theriogenology. 122, 9-13.
Heldring N., Pike A., Andersson S., Matthews J., Cheng G., Hartman J., Tujague M., Strom A., Treuter E., Warner M. and Gustafsson J.A. (2007). Estrogen receptors: How do they signal and what are their targets. Physiol. Rev. 87, 905-931.
Land R.B. and Scaramuzzi R.J. (1979). A note on the ovulation rate of sheep following treatment with clomiphene citrate. Anim. Sci. 28, 131-134.
Omran E., El-Sharkawy M., El-Mazny A., Hammam M., Ramadan W., Latif D., Samir D. and Sobh S. (2018). Effect of clomiphene citrate on uterine hemodynamics in women with unexplained infertility. Int. J. Women's Health. 10, 147-152.
Pineda M.H. and Dooley M.P. (2003). McDonald's Veterinary Endocrinology and Reproduction. Iowa State Press, Ames, Iowa.
Rastegarnia A. (2007). Oestrus synchronization in ewes with use of norgestomet and PMSG during non breeding season. J. Comp. Pathobiol. 4, 199-208.
Rateb S.A., Abd El-Hamid I.S., Khalifa M.A., Ibrahim N.H., Younis F. and El-Rayes M. (2019). Influence of clomiphene citrate on induced ovarian hyperstimulation and subsequent fertility in Damascus goats. Small Rumin. Res. 175, 37-45.
Saadat-Noori M. and Siah-Mansoor S. (1987). Sheep Husbandry and Management. Asharfi Publishing Corporation, Tehran, Iran.
Safranski T.J., Lamberson W.R. and Keisler D.H. (1992). Use of melengestrol acetate and gonadotropins to induce fertile estrus in seasonally anestrous ewes. J. Anim. Sci. 70, 2935-2941.
SAS Institute. (2008). SAS®/STAT Software, Release 9.2. SAS Institute, Inc., Cary, NC. USA.
Tiwary K.K. (2006). Estrus induction and steroid profile in anestrus cattle treated with PMSG and clomiphene citrate. Ph D. Thesis. Birsa Agricultural Univ., Kanke, Ranchi, Jharkhand.