Synchronization of estrus with short- and long-term progestagen treatments and the use of GnRH prior to short-term progestagen treatment in ewes

Small Ruminant Research

Volumn 81, Issue 2-3, 2009, Pages 185-188

  Karaca, F ^a   Ataman, M B ^b   Coyan K ^b  

^a MUSTAFA KEMAL UNIVERSITY   (Turkey)

^b SELCUK UNIVERSITY   (Turkey)

Author keywords

Estrous synchronization; Ewes; Gonadotropins; PGF2 ; Progesterone

Indexed keywords

OVIS ARIES;

EID: 59349092683     PISSN: 09214488     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.smallrumres.2008.12.002     Document Type: Article

References (23)

1. Ali A. Effect of time of eCG administration on follicular response and reproductive performance of FGA-treated Ossimi ewes. Small Rumin. Res. 72 (2007) 33-37
2. 2α synchronization in Akkaraman cross-bred sheep in the breeding Season. Bull. Vet. Inst. Pulawy 50 (2006) 101-104
3. Ataman M.B., Aköz M., and Akman O. Induction of synchronized oestrus in Akkaraman cross-bred ewes during breeding and anestrus seasons: the use of short-term and long-term progesterone treatments. Rev. Med. Vet. 157 5 (2006) 257-260
4. Baird D., and Campbell B.K. Follicle selection in sheep with breed differences in ovulation rate. Mol. Cell Endocrinol. 145 (1998) 89-95
5. Barrett D.M.W., Bartlewski P.M., Batista-Arteaga M., Symington A., and Rawlings N.C. Ultrasound and endocrine evaluation of the ovarian response to a single dose of 500 IU of eCG following a 12-d treatment with progestagen-releasing intravaginal sponges in the breeding and non-breeding seasons in ewes. Theriogenology 61 (2004) 311-327
6. Beck N.F.G., Davies B., and Williams S.P. Oestrus synchronization in ewes: the effect of combining a prostaglandin analogue with a 5-d progestagen treatment. Anim. Prod. 56 (1993) 207-210
7. Beck N.F.G., Jones M., Davies B., Peters A.R., and Williams S.P. Oestrus synchronization in ewes: the effect of combining a prostaglandin analogue with a GnRH agonist (buserelin). Anim. Sci. 62 (1996) 85-87
8. Diskin M.G., Austin E.J., and Roche J.F. Exogen hormonal manipulation of variance activity in cattle. Dom. Anim. Endocrinol. 23 (2002) 211-228
9. Dogan I., and Nur Z. Different estrous induction methods during the non-breeding season in Kivircik ewes. Vet. Med. 51 (2006) 133-138
10. Fukui Y., Ishikawa D., Ishida N., Okada M., Itagaki R., and Ogiso T. Comparison of fertility of estrous synchronized ewes with four different intravaginal devices during the breeding season. J. Reprod. Dev. 45 (1999) 337-343
11. 2α treatment on induction of oestrus and pregnancy in anoestrus Awassia ewes. Reprod. Dom. Anim. 38 (2003) 228-232
12. Husein M.Q., Ababneh M.M., and Abu-Ruman D.S. The effects of short or long term FGA treatment with or without eCG on reproductive performance of ewes bred out-of-season. Am. J. Anim. Vet. Sci. 2 1 (2007) 23-28
13. Kinder J.E., Kojima F.N., Bergfeld E.G.M., Wehrman M.E., and Fike K.E. Progestin and estrogen regulation of pulsatile LH release and development of persistent ovarian follicles in cattle. J. Anim. Sci. 74 (1996) 1424-1440
14. Macmillan K.L., Segwagwe B.V.E., and Pino C.S. Associated between the manipulation of patterns of follicular development and fertility in cattle. Anim. Reprod. Sci. 78 (2003) 327-344
15. Menchaca A., and Rubianes E. New treatments associated with timed artificial insemination in small ruminants. Reprod. Fertil. Dev. 16 (2004) 403-413
16. Patterson D.J., Kiraeofe G.H., Stevenson J.S., and Corah L.R. Control of the bovine estrous cycle with melengestrol acetate (MGA): a review. J. Anim. Sci. 67 (1989) 1895-1906
17. 2α combination. Reprod. Dom. Anim. 43 (2008) 308-313
18. Twagiramungu H., Guilbault L.A., and Dufour J.J. Synchronization of ovarian follicular waves with a gonadotropin-releasing hormone agonist to increase the precision of estrus in cattle: a Review. J. Anim. Sci. 73 (1995) 3141-3151
19. Ungerfeld R., and Rubianes E. Effectiveness of short-term progestogen primings for the induction of fertile oestrus with eCG in ewes during late seasonal anestrus. Anim. Sci. 68 (1999) 349-353
20. Ustuner B., Gunay U., Nur Z., and Ustuner H. Effects of long and short-term progestagen treatments combined with PMSG on oestrus synchronization and fertility in Awassi ewes during the breeding season. Acta. Vet. Brno. 76 (2007) 391-397
21. Vinoles C., Forsberg M., Banchero G., and Rubianes E. Effect of long-term and short-term progestagen treatment on follicular development and pregnancy rate in cyclic ewes. Theriogenology 55 (2001) 993-1004
22. Whitley N.C., and Jackson D.J. An update on estrus synchronization in goats: a minor species. J. Anim. Sci. 82 (2004) 270-276
23. Zeleke M., Greyling J.P.C., Schwalbach L.M.J., Muller T., and Erasmus J.A. Effect of progestagen and PMSG on oestrous synchronization and fertility in Dorper ewes during the transition period. Small Rumin. Res. 56 (2005) 47-53