Evaluation of the effect of PMSG dose on the fertility rate of nomadic sheep in Golestan province

Authors

1 Dept. of animal science

2 Golestan Agricultural and Natural Resources Research and Education Center, AREEO, Gorgan, Iran

Abstract

Abstract
Background and purpose: In recent years, various tools for reproductive management have been introduced, the most important of which are drugs that regulate estrus time and mating of sheep and goats. Due to the poor reproductive management of nomadic herds and in order to improve the existing conditions, one of the main needs of this project is to study the use of estrus synchronization methods and create controlled off-season reproductions in one of the herds. Nomadic herds in order to observe the objective results in the same herd and also to introduce and model these methods in other herds in the region. This study was performed to investigate the increase in twinning and to determine the best amount of PMSG on fertility and calving in Kurdish sheep. Therefore, due to the weak reproductive management of nomadic herds and in order to improve the existing conditions, one of the main necessities of this project is to study the use of synchronous estrus methods and create controlled out-of-breeding reproductive seasons in one of the herds. Nomads are in order to observe the objective results in the same herd and also to introduce and model these methods in other herds in the region. Therefore, in this project, the effects of the duration of cider progestogen use (14 days) along with injection of different amounts and times of PMSG hormone in sheep in two nomadic herds of the province were investigated.

Materials and Methods: In this experiment, 90 Kurdish ewes aged 3 and 4 years were used in nomadic herds in 3 experimental groups in Golestan province. Cider was used to synchronize the herd for 14 days. Simultaneously with cider withdrawal, each experimental group received different amounts of PMSG muscle intramuscularly. 36 hours after CIDR ejaculation, the ewes showed estrus and were placed in front of the ram for mating for 7 days. It was recorded on ovulation day and calving day, and finally the effect of different amounts of hormone on the performance of each treatment was investigated. Data were analyzed using SAS software using Duncan's method and GLM procedure at 5% alpha level.

Results: No significant level was observed between the treatments that received 400 and 500 units of PMSG, but the weight of the three-month-old lamb in the group that received 400 and 500 units of PMSG compared to the group that received 600 units of PMSG was significant. Has been.

Conclusion: The results showed that with increasing the amount of PMSG, the number of ewes that showed estrus, estrus percentage, number of pregnant ewes, average weight of three-month-old lamb and weight of production lambs per treatment increased and the average weight of three lambs increased. The month showed a significant increase.

Keywords

References

  1.  Abstract report The statistics of slaughtering livestock in slaughterhouses in Iran 2929 - Statistics Center of Iran. 1393. (In Persian). www.amar.org.ir.

    1. Akoz, M., Bulbul, B., Ataman, M.B. 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. Bulletin Veterinary Institue Pulawy.50:97-100
    2. Ali, A. 2007. Effect of time of eCG administration on follicular response and reproductive performance of FGA-treated Ossimi ewes. Small Ruminant Research.72: 33-37
    3. Barrett, D., MBartlewski, P.M., Batista-Arteaga, M., Symington, A. and Rawlings, N.C. 2004. Ultrasound and endocrine evaluation of the ovarian response to a single dose of 500 IU eCG following a 12- day treatment with progestagen-releasing intravaginal sponges in the breeding and non-breeding season in ewes. Theriogenology. 61: 311-327.
    4. Ben-Said, S., Lomet, D., Chesneau, D., Lardic, L., Canepa, S., Guillaume, D., Briant, C., Fabre-Nys, C. and Caraty, A. 2007. Differential estradiol requirement for the induction of estrus behavior and the luteinizing hormone surge in two breeds of sheep. Biology of Reproduction. 76:673-680
    5. Cognie, Y. 1999.State of the art in sheep-goat embryo transfer. Theriogenology. 51:105-116.
    6. Emsen, E., and Yaprak, M. 2006. Effect of controlled breeding on the fertility of Awassi and Red Karaman ewes and the performance of the offspring. Small Ruminant Research. 66:230-235.
    7. Eppleston, J., Evans, G. and Roberts, E.M. 1991. Effect of time of PMSG and GnRH on the time of ovulation, LH secretion and reproductive performance after intrauterine insemination with frozen ram semen. Animal Reproduction Science. 26 (3):227–237.
    8. Fukui, Y., Itagaki, R., Ishida, N. and Okada, M. 2001. Effect of different hCG treatments on fertility of estrus-induced and artificially inseminated ewes during the non-breeding season. Journal of Reproduction and Develoment. 47:189-195.
    9. Gomez-Brunet, A., Santiago-Moreno, J., Montoro, V., Garde, J., Pons, P., Gonzalez-Bulnes, A. and Opez-Sebastian, A.L. 2006. Reproductive performance and progesterone secretion in es-trus-induced Manchega ewes treated with hCG at the time of AI. Small Ruminant Research. 71:117-122.
    10. Greyling, J.P.C. and van Niekerk, C.H. 1989. Effect of pregnant mare serum gonadotrophin (PMSG) and route of administration after progestagen treatment on estrous and LH secretion in the Boer goat. Small Ruminant Research. 3:511-516.
    11. Gulyuz, F. and Kozat, S. 1995. Synchronization of oestrous in sheep and the effect of PMSG dose on lambs number. Y.Y.U.J. Faculty Vet Med. 6: 64-66.
    12. Hafez, B. and Hafez, E.S.E. 2000. Reproduction in farm animals. 7th ed., Lippincott Willimas and Wilkins, Philadelphia. U.S.A. Pp:509.
    13. Hashemi, M., Safdarian, M., and Kafi, M. 2006. Estrous response to synchronization of estrus using different progesterone treatments outside the natural breeding season in ewes. Small Ruminant Research. 65:279-283.
    14. Ince, D. and Karaca, O. 2009. Effects of estrus synchronization and various doses of PMSG administrations in Chios x Kivircik (F1) sheep on reproductive performances. Journal of Animal and Veterinary Advances. 8:1948-1952.

     

    1. Kara, C., Orman, A., Topal, E. and Carkungoz, E. 2010. Effects of supplementary nutrition in Awassi ewes on sexual behaviors and reproductive traits. Journal of Biological and Environmental Sciences. 4:15-21.
    2. Khaldari, M., Tajik, P., Afzalzadeh, A. and Farzin, N. 2004. Efficacy of CIDR and eCG on oestrous synchronization and twining rate in Zandi ewes during the breeding season. J. Fac. Vet. Med. Univ. Tehran. 59(2):141-145. (In Persian)
    3. Kridli, R.T., Abdullah, A.Y. and Husein, M.Q., 2009. The effect of breed type and lactation status on reproductive performance in Awassi ewes. South African Journal of Animal Science. 39:15-18.
    4. Koyuncu, M. and Altincekic, S.O. 2010. Effect of progestagen and PMSG on Estrous synchronization and fertility in Kivircik ewes during natural breeding season.Asian-Australasian Journal of Animal Sciences. 23(3):308-311
    5. Koyuncu, M., Yerlikaya, H. and Altincekic, S.O. 2008. Effect of injection with dexamethasone and progestagens-PMSG on reproduction and rearing of lambs in semi-intensive condition. Journal of Biological Science. 11: 680-682.
    6. .Langford, G.A., Marcus, G.J. and Btra, T.R. 1983. Seasonal effects of PMSG and number of inseminations on fertility of progesterone–treated sheep. Journal of Animal Science. 57:307-312.
    7. Mamouii, M., Yaghoubi, S.J., Karami shamankareh, H. and Roshanfekr, H.A. 2010. Effect of CIDR in the induction of estrus synchronization and fertility ewes squirrel in non-reproductive season. Iranian Veterinary Journal. 5(22):92-97. (In Persian).
    8. Mehri, R., Rostami, B., Masoumi, R. and Shahir, M.H. 2018. Effect of injection of GnRH and hCG on day 5 post mating on maternal P4 concentration and reproductive performance in Afshari ewes. Journal of Comparative Pathobiology. 14:2363-2370. (In Persian).
    9. Najafi, G.H., Cedden, F., Kohram, H., Sulu, N., Dellal, G. and Bohlooli, S.H. 2012. Effect of Various Doses of PMSG Administrations on Reproductive Performance in Ghezel Sheep of Iran. Scholars Research Library. 3(7):3300-3304.
    10. Neglia G., Gasparrini B., Dipalo R., Rosa C.D., Zicarelli L. and Campanile G. 2003. Comparison of pregnancy rates with two estrus synchronization protocols in Italian Mediterranean buffalo cows. Theriogenology. 60:125-133.
    11. Ozyurtlu, N., Kucukaslan, I. and Cetin, C. 2010. Characterization of oestrous induction response, oestrous duration, fecundity and fertility in Awassi ewes during the non-breeding season utilizing both CIDR and intravaginal sponge treatments. Reprodution in Domestic Animals. 45(3):464-7.
    12. Quintero-Elisea, J.A., Macías-Cruz, U., Álvarez-Valenzuela, F.D., Correa-Calderón, A., González-Reyna, A., Lucero-Magaña, FA ., Soto-Navarro, SA. and Avendaño-Reyes, L. 2011. The effects of time and dose of pregnant mare serum gonadotropin (PMSG) on reproductive efficiency in hair sheep ewes. Tropical Animal Health and Production. 43(8):1567-73.
    13. Rastegarnia, A.R. Oestrus synchronization in ewes with use of norgestomet and PMSG during non-breeding season. Journal of Comparative Pathobiology. 4(3):199-208. (In Persian).
    14. Rastegarnia, A.R., Niasari, A., Horeshti, P., Sarhadi, F., Kordnezhad, E. 1391. Effect of PMSG on efficiency cyncronization of using norjostoment in River Buffallo. 1391. Iranian Veterinary Journal. 8(11): 42-50. (In Persian).
    15. Rosado, J., Silva, E. and Calina, M.A. 1998. Reproductive management on hair sheep with
      progesterone and gonadotropins in the tropics. Small Ruminant Research, 27: 237-242.
    16. Ryan, J.P., Hunton, J.R. and Maxwell, W.M. 1991. Increased production of sheep embryos following superovulation of Merino ewes with a combination of pregnant mare serum gonadotrophin and follicle stimulating hormone. Reproduction, Fertililty and Development. 3:551-560
    17. Safdarian, M. 2004. Determining the best method for estrus synchronization. Final Report of Research Plan. Animal Scince Research Institute. (In Persian).
    18. Samadi, F. 1388. Effect of season and hCG and PMSG gonadotropins on reproductive performance of Atabay ewes. (In Persian). J. Agri. Nat. Res. Sci. 16:3.1-7. (In Persian).
    19. Santos, G.M.G., Silva-Santos, K.C., Melo-Sterza, F.A., Mizubuti, I.Y., Moreira, F.B. and Seneda, M.M. 2011. Reproductive performance of ewes treated with an estrus induction/synchronization protocol during the spring season. Anim. Reprod. 8(1/2):3-8.
    20. Saini M.S., Mgalhotra M.M., Kaker M.L. and Razdan M.N. 1986. Induction of estrus and ovulation in non- cyclic buffalo (Bubalus bubalis) heifers with progesterone – releasing intravaginal device and pregnant mare Serum gonadotrophin and their gonadotrophin profile. Theriogenology. 26:749-755.
    21. Timurkan, H. and Yildiz, H. 2005. Synchronization of estrus in Hamadani ewes: The use of different PMSG doses. Bulletin Veterinary Institue Pulawy. 49:311-314.
    22. Turk, G., Gur, S., Sonmez, M., Bozkurt, T., Aksu, EH. and Aksoy, H. 2008. Effect of exogenous GnRH at the time of artificial insemination on reproductive performance of Awassi ewes synchronized with progestagen PMSG-PGF2alpha combination. Reprodution in Domestic Animals. 43(3): 308-13.
    23. Ustuner, B., Gunay, U., Nur, Z. and Ustuner, H. 2007. Effects of long and short-term progestogen treatments combined with PMSG on oestrus synchronization and fertility in Awassi ewes during the breeding season. Acta Veterinaria Brno. 76:391-397.
    24. Wildeus, S. 1999. Current concepts in synchronization of estrus: Sheep and goats. Proceeding of the American Society of Animal Science. Pp:1-14.
    25. Yadi, J., Naeini, M.R. and Khalajzadeh, S. 2012. Evaluation of changes in estrogen and progesterone after completion of synchronization in ewes Kal Kuhi. The first national conference on modern issues in agriculture, Saveh University. (In Persian).
    26. Zarkawi, M. 2001. Oestrous synchronisation and twinning rate of Syrian Awassi ewes treated with progestagen and PMSG during the breeding season. N.Z.J. Agric. Res. 44:159-163.
    27. Zarkawi, M., AL-Merestani, M.R. and Wardeh, M.F. 1999. Induction of synchronized oestrous and early pregnancy diagnosis in Syria Awassi ewes, outside the breeding season. Small Ruminant Research.33:99-102.
    28. Zeleke, M., Greyling, J.P.C. Schwalbach, L.M.J,. Muller, T.  and Erasmus, J.A. 2005. Effect of progestagen and PMSG on oestrous synchronization and fertility in Dorper ewes during the transition period. Small Ruminant Research. 56:47-53.
Journal of Ruminant Research
Volume 9, Issue 2
September 2021
Pages 93-106

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