Oestrus synchronization with short-term and long-term progestagen treatments in goats: the use of GnRH prior to short-term progestagen treatment

References

• Al-MerestaniM.R. ZarkawiM. WardehM.F. 2003 Improving the reproductive efficiency, pregnancy diagnosis and monitoring the resumption of luteal activity in indigenous damascus goats Reprod. Domest. Anim 38 36–40
   PubMed Web of Science ®Google Scholar
• AmarantidisI. KaragiannidisA. SaratsisP.H. BrikasP. 2004 Efficiency of methods used for estrous synchronization in indigenous Greek goats Small Ruminant Res 52 247–252
   Web of Science ®Google Scholar
• AtamanM.B. AközM. AkmanO. 2006 Induction of synchronized oestrus in Akkaraman cross-bred ewes during breeding and anoestrus seasons : the use of short-term and long-term progesterone treatments Revue Méd. Vét.-Toulouse 157 257–260
   Web of Science ®Google Scholar
• BarrettD.M.W. BartlewskiP.M. Batista-ArteagaM. SymingtonA. RawlingsN.C. 2004 Ultrasound and endocrine evaluation of the ovarian response to a single dose of 500 IU of eCG following a 12-day treatment with progestogen-releasing intravaginal sponges in the breeding and nonbreeding seasons in ewes Theriogenology 61 311–327
   PubMed Web of Science ®Google Scholar
• DeJarnetteJ.M. WallaceR.W. HouseR.B. SalversonR.R. MarshallC.E. 2001 Attenuation of premature estrous behavior in postpartum beef cows synchronized to estrus using GnRH and PGF2 Theriogenology 56 493–501
   PubMed Web of Science ®Google Scholar
• DoganI. KonyaliA. ToluC. YurdabakS. 2008 Different estrous induction protocols du-ring the transition period in lactating Turkish Saanen does AI Acta Vet.-Beograd 58 259–266
   Web of Science ®Google Scholar
• DoganI. NurZ. GunayU. SagirkayaH. SoyluM.K. SonmezC. 2005 Estrous synchronization during the natural breeding season in Anatolian black does Vet. Med. Czech 50 33–38
   Web of Science ®Google Scholar
• EngelandI.V. WaldelandH. AndresenØ. LøkenT. BjörkmanC. Inge BjerkåsI. 1998 Foetal loss in dairy goats: an epidemiological study in 22 herds Small Ruminant Res 30 37–48
   Web of Science ®Google Scholar
• FonsecaJ.F. BruschiJ.H. SantosI.C.C. VianaJ.H.M. MagalhãesA.C.M. 2005 Induction of estrus in non-lactating dairy goats with different estrous synchrony protocols Anim Reprod. Sci 85 117–124
   Google Scholar
• FreitasV.J.F. BarilG. SaumandeJ. 1997 Estrus synchronization in dairy goats: use of fluorogestone acetate vaginal sponges or nor-gestomet ear implants Anim. Reprod. Sci 46 237–244
   PubMed Web of Science ®Google Scholar
• GreylingJ.P.C. Van NierkerkC.H. GrobbelaarJ.A.N. 1985 Synchronization of oestrus in the Boer goat doe: the response to the use of intravaginal progestagen and PMSG S. Afr. J. Anim. Sci 15 52–55
   Web of Science ®Google Scholar
• KaracaF. AtamanM.B. CoyanK. 2009 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 Res 81 185–188
   Web of Science ®Google Scholar
• KusinaN.T. TarwireiF. HamudikuwandaH. AgumbaG. MukwenaJ. 2000 A comparison of the effects of progesterone sponges and ear implants, PGF2, and their combination of efficiacy of esrus synchronization and fertility of Mashona goat does Theriogenology 53 1567–1580
   PubMed Web of Science ®Google Scholar
• LambG.C StevensonJ.S. KeslerD.J. GarverickH.A. BrownD.R. SalfenB.E. 2001 Inclusion of an intravaginal progesterone insert plus GnRH and prostaglandin F2 for ovulation control in postpartum suckled beef cows J. Anim. Sci 79 2253–2259
   PubMed Web of Science ®Google Scholar
• MacmillanK.L. SegwagveB.V.E. PinoC.S. 2003 Associated between the manipulation of patterns of follicular development and fertility in cattle Anim. Reprod. Sci 78 327–344
   PubMed Web of Science ®Google Scholar
• MatthewsJ. 1999 Diseases of the Goat Blackwell Science ed. Oxford, UK
   Google Scholar
• MotlomeloK.C. GreylingJ.P.C. SchwalbachL.M.J. 2002 Synchronisation of oestrus in goats: the use of different progestagen treatments Small Ruminant Res 45 45–49
   Web of Science ®Google Scholar
• NoëlB. BisterJ.L. PierquinB. PaquayR. 1994 Effects of FGA and PMSG on follicular growth and LH secretion in Suffolk ewes Theriogenology 41 719–727
   PubMed Web of Science ®Google Scholar
• OsuagwuhA.I.A. 1992 Effects of strategic feed supplementation during pregnancy on birth weight and perinatal survival of West African Dwarf kids J. Agr. Sci 119 123–126
   Web of Science ®Google Scholar
• ÖztürklerY. ÇolakA. BaykalA. GüvenB. 2003 Combined effect of a prostaglandin analogue and a progestagen treatment for 5 days on oestrus synchronization in Tushin ewes Indian Vet. J 80 917–920
   Google Scholar
• RegueiroM. ClarigetRP. GanzábalbA. AbaM. ForsbergM. 1999 Effect of medroxyprogesterone acetate and eCG treatment on the reproductive performance of dairy goats Small Ruminant Res 33 223–230
   Web of Science ®Google Scholar
• RomanoJ.E. 2004 Synchronization of estrus using CIDR, FGA or MAP intravaginal pessaries during the breeding season in Nubian goats Small Ruminant Res 55 15–19
   Web of Science ®Google Scholar
• RyanD.P. SnijdersS. YaakubH. O' FarrellK.J. 1995 An evaluation of estrus synchronization programs in reproductive management of dairy herds J. Anim. Sci 73 3687–3695
   PubMed Web of Science ®Google Scholar
• StevensonJ.S. ThompsonK.E. ForbesW.L. LambG.C. GriegerD.M. CorahL.R. 2000 Synchronizing estrus and (or) ovulation in beef cows after combinations of GnRH, nor-gestomet, and prostaglandin F2 with or without timed insemination J. Anim. Sci 78 1747–1758
   PubMed Web of Science ®Google Scholar
• ThatcherW.W. MacmillanK.L. HansenP.J. DrostM. 1989 Concepts for regulation of corpus luteum function by the conceptus and ovarian follicles to improve fertility Theriogenology 31 149–161
   Web of Science ®Google Scholar
• ThompsonK.E. StevensonJ.S. LambG.C. GriegerD.M. LoestC.A. 1999 Follicular, hormonal, and pregnancy responses of early postpartum suckled beef cows to GnRH, nor-gestomet, and prostaglandin F22 J. Anim. Sci 77 1823–1832
   PubMed Web of Science ®Google Scholar
• UstunerB. GunayU. NurZ. UstunerH. 2007 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 76 391–397
   Web of Science ®Google Scholar
• ViñolesC. ForsbergM. BancheroG. RubianesE. 2001 Effect of long-term and short-term progestagen treatment on follicular development and pregnancy rate in cyclic ewes Theriogenology 55 993–1004
   PubMed Web of Science ®Google Scholar
• WhitleyN.C. JacksonD.J. 2004 An update on estrus synchronization in goats: A minor species J. Anim. Sci 82 (Suppl. E.) 270–276
   PubMedGoogle Scholar
• ZelekeM. GreylingJ.P.C. SchwalbachL.M.J. MullerT. ErasmusJ.A. 2005 Effect of progestagen and PMSG on oestrous synchronization and fertility in Dorper ewes during the transition period Small Ruminant Res 56 47–53
   Web of Science ®Google Scholar