Effects of different intravaginal progesterone releasing devices on estrous synchronization and LH surge in fat-tailed ewes during non-breeding season

• Autorzy: Gungor O , Cenesiz M. , Pancarci S.M. , Yildiz S. , Kaya M. , Kacar C. , Ozyurtlu N. , Gurbulak K.
• Języki publikacji: EN

Abstrakty

EN

The aims of this study were to compare two methods of estrus synchronization and to evaluate the effectiveness of the PMSG treatment combined with P4 application. Fifty non-lactating seasonal anestrus fat-tailed ewes were randomly assigned into five groups. The controlled internal drug release devices (CIDR) were applied during day 14 in group I and in group II. Progesterone impregnated sponges were applied during day 14 in group III and in group IV. And then 500 IU PMSG was injected in group I and III i.m. intravaginal devices removed. Ewes in group V served as controls. There was no difference between the groups in the peak value of LH and LH surge. Although LH surge was seen in the control groups 5 sheep, none of the control ewes expressed estrus. Different progestagen treatments have no different results when they are evaluated in terms of the success of the estrus synchronization. PMSG application, after P4 treatment, increased the success of the synchronization.

Słowa kluczowe

EN

animal breeding; fat-tailed ewe; ewe; Tushin breed; intravaginal progesterone; oestrus synchronization; non-breeding season; synchronization; gonadotrophin; treatment

• Wydawca: -
• Czasopismo: Medycyna Weterynaryjna
• Rocznik: 2007
• Tom: 63
• Numer: 11
• Opis fizyczny: p.1316-1319,fig.,ref.

Twórcy

autor

Gungor O

• University of Kafkas, 36100, Kars, Turkey

autor

Cenesiz M.

autor

Pancarci S.M.

autor

Yildiz S.

autor

Kaya M.

autor

Kacar C.

autor

Ozyurtlu N.

autor

Gurbulak K.

Bibliografia

• 1.Ainsworth L., Lachance R., Labri F.: Effects of progestagen treatments and PMSG on the induction of the preovulatory LH discharge in ewes. Anim. Reprod. Sci. 1983, 5, 281-286.
• 2.Ataman M. B., Aköz M.: GnRH-PGF2a and PGF2a -PGF2a synchronisation in Akkaraman cross-breed shep in the breeding season. Bull. Vet. Inst. Pulawy 2006, 50, 101-104.
• 3.Baird D. T., Swanston I., McNeilly A. S.: Relationship between LH, FSH and prolactin concentration and the secretion of androgens and estrogens by the preovulatory follicle in the ewe. Biol. Reprod. 1981, 24, 1013-1025.
• 4.Bister J. L., Noel B., Perrad B., Mandiki S. N. M., Mbyahaga J., Paquay R.: Control of ovarian follicles activity in the ewe. Dom. Anim. Endocrinol. 1999, 17, 315-328.
• 5.Carson R. S., Findlay J. K., Clarke I. J., Burger H. G.: Estradiol, testosterone, and androstenedione in ovine follicular fluid during growth and atresia of ovarian follicles. Biol. Reprod. 1981, 24, 105-113.
• 6.Dobson H., Campbell B. K., Gordon B. M., Scaramuzzi R. J.: Endocrine activity of induced follicles in sheep. Biol. Reprod. 1997, 56, 208-213.
• 7.Evans A. C. O., Duffy P., Hynes N., Boland M. P.: Waves of follicle development during the estrous cycle in sheep. Theriogenology 2000, 53, 699-715.
• 8.Godfrey R. W., Gray M. L., Collins J. R.: A comparison of two methods of oestrus synchronization of hair sheep in the tropics. Anim. Reprod. Sci. 1997, 47, 99- -106.
• 9.Godfrey R. W., Collins J. R., Hensley E. L., Wheaton J. E.: Estrus synchronization and artificial insemination of hair sheep ewes in the tropics. Theriogenology 1999, 51, 985-997.
• 10.Greyling J. P. C., Brink W. C. J.: Synchronization of oestrus in sheep: The use of controlled internal drug release (CIDR) dispensers. South Afr. J. Anim. Sci. 1987, 10, 35-41.
• 11.Greyling J. P. C., Erasmus J. A., Taylor G. J., Merwe S.: Synchronization of estrus in sheep using progestagen and inseminating with chilled semen during the breeding season. Small Rumin. Res. 1997, 26, 137-143.
• 12.Iida K., Kobayashi N., Kohno H., Miyamota A., Fukui Y.: A comparative study of induction of estrus and ovulation by three different intravaginal devices in ewes during the non-breeding season. J. Reprod. Dev. 2004, 50, 63-69.
• 13.Kaya M., Yildiz S., Guven B.: The determination of plasma progesterone, oestradiol-17b and luteinizing hormone levels during oestrous period of Tuj ewe-lambs following oestrus induction. Rev. Med. Vet. 2005, 156, 628-632.
• 14.Knights M., Maze T. D., Bridges P. J., Lewis P. E., Inskep E. K.: Short-term treatment with a controlled internal drug releasing (CIDR) device and FSH to induce fertile estrus and increase prolificacy in anestrus ewes. Theriogenology 2001, 55, 1181-1191.
• 15.Menegatos J., Chadio S., Kalogiannis T., Kouskoura T., Kouimtzis S.: Endocrine events during the periestrous period and the subsequent estrous cycle in ewes after estrus synchronization. Theriogenology 2003, 59, 1533-1543.
• 16.Moenter S. M., Caraty A., Karsh F. J.: The estradiol-induced surge of gonadotrophin-releasing hormone in the ewe. Endocrinology 1990, 127, 1375-1384.
• 17.Mutayoba B. M., Meyer H. H. D., Schams D., Schallenberger E.: Development of a sensitive enzyme immunoassay for LH determination in bovine plasma using the streptavidin-biotin technique. Acta Endocrinol. 1990, 122, 227-232.
• 18.Prakash B. S., Meyer H. H. D., Schallenberger E., Van De Wiel D. F. M.: Development of sensitive Enzymeimmunoassay (EIA) for progesterone determination in unextracted bovine plasma using the second antibody technique. J. Steroid Biochem. 1987, 28, 623-627.
• 19.Ritar A. J., Maxwell W. M. C., Salamon S.: Ovulation and LH secretion in the goat after intravaginal progestagen sponge-PMSG treatment. J. Reprod. Fertil. 1984, 72, 559-563.
• 20.Romano J. E., Rodas E., Ferreira A., Lago I., Benech A.: Effect of progestagen, PMSG and artificial insemination time on fertility and prolificacy in Corriedale ewes. Small Rumin. Res. 1986, 23, 157-162.
• 21.Shelton J. N., Moor N. W.: The response of the ewe to pregnant mare serum and to horse anterior pituitary extract. J. Reprod. Fertil. 1967, 14, 175-177.
• 22.Souza C. J. H., Campbell B. K., Baird D. T.: Follicular dynamics and ovarian steroid secretion in sheep during anoestrus. J. Reprod. Fertil. 1996, 108, 101- -106.
• 23.Stenbak T. K., Grazul-Bilska A. T., Berginski H. R., Bilski J. J., Erickson A. S., Kirsch J. D., Kraft K. C., Navanukraw C., Toutges M. J., Reynolds L. P., Redmer D. A.: Ovulation rate in ewes synchronized with Syncro-Mate-B (SMB) and follicle stimulating hormone. Small Rumin. Res. 2003, 48, 1-8.
• 24.Thimonier J.: Control of seasonal reproduction in sheep and goats by light and hormones. J. Reprod. Fertil. (Suppl.) 1981, 30, 33-45.
• 25.Timurkan H., Yildiz H.: Synchronisation of oestrus in Hammadani ewes: The use of different PMSG doses. Bull. Vet. Inst. Pulawy 2005, 49, 311-314.
• 26.Ungerfeld R., Rubianes E.: Estrous response to ram effect in Corriedale ewes primed with medroxyprogesterone during the breeding season. Small Rumin. Res. 1999, 32, 89-91.
• 27.Van Cleff J., Karsch F. J., Padmanabhan V.: Characterization of endocrine events during the periestrous period in sheep after estrous synchronization with controlled internal drug release (CIDR) device. Dom. Anim. Endocrinol. 1998, 15, 23-24.
• 28.Viñoles C., Fosberg M., Banchero G., Rubianes E.: Effect of long-term and short-term progestagen treatment on follicular development and pregnancy rate in cyclic ewes. Theriogenology 2001, 55, 993-1004.
• 29.Wildeus S.: Current concepts in synchronization of estrus: Sheep and goats. Am. Soc. Anim. Sci. 2000, 38, 1-8.
• 30.Yildiz S., Saatci M., Uzun M., Güven B.: Effect of ram induction after the second prostaglandin F2 a injection on day 11 on the LH surge characteristics in fat-tailed ewes. Reprod. Dom. Anim. 2003, 38, 54-57.