Synchronization of Oestrus in Goats with Progestogen Sponges and Short Term Combined FGA, PGF2α Protocols
The study aimed to evaluated the reproductive performance response to short term oestrus synchronization during the transition period. One hundred and sixty-five indigenous multiparous non-lactating goats were subdivided into the following six treatment groups for oestrus synchronization: NT control Group (N= 30), Fe-21d, FGA vaginal sponge for 21days+eCG at 19thd; FPe- 11d, FGA 11d + PGF2α and eCG at 9th d; FPe-10d, FGA 10d+ PGF2α and eCG at 8th d; FPe-9d, FGA 9d +PGF2α and eCG at 7thd; PFe-5d, PGF2α at d0 + FGA 5d + eCG at 5thd. The goats were natural mated (1 male/6 females). Fecundity rates (n. births /n. females treated x 100) were statistically higher (P < 0.05) in short term FPe-9d (157.9%), FPe- 11d (115.4%), FPe-10d (111.1%) and PFe-5d (107.7%) groups compared to the NT control Group (66.7%).
[1] R. Gordon, "Controlled reproduction in sheep and goats. In:
Artificial control of estrus and ovulation", Gordon IR (Ed.), CAB
International, New York, 1997, pp. 87-89.
[2] W. Holtz, "Recent developments in assisted reproduction in goats",
Small Rumin. Res., Vol. 60, pp 95-110, 2005.
[3] C. Vi├▒oles, M. Forsberg, G. Banchero, and E. Rubianes, "Effect of
long-term and short-term progestagen treatment on follicular
development and pregnancy rate in cyclic ewes", Theriogenology,
vol. 55, pp. 993-1004, 2001.
[4] M. G. Diskin, E. G. Austin, and J. F. Roche, "Exogenous hormonal
manipulation of ovarian activity in cattle". Dom. Anim. Endocr., vol.
23, pp. 211-228, 2002.
[5] O. J. Ginther, and K. Kot, "Follicular dynamics during the ovulatory
season in goats", Theriogenology, vol. 42, pp. 987-1001. 1994
[6] A. Menchaca, and E. Rubianes, "Relation between progesterone
concentrations during the early luteal phase and follicular dynamics
in goats", Theriogenology, vol. 57, pp. 1411-1419, 2002.
[7] G.W. Snedecor, and W. G. Cochran, Statistical Methods, 7th ed. The
Iowa State University Press, Ames, USA., 1980.
[8] O. Gaston-Parry, K. Heasman, J. K. E. Nemorin, and T. J., Robinson,.
"A radioimmunoassay for fluorogestone acetate (FGA) and its
application to the measurement of plasma FGA and progesterone in
ewes treated with FGA-impregnated intravaginal sponges", Aust. J.
Biol. Sci. vol. 41, pp. 57-67,.1988.
[9] C. Vi├▒oles, A. Meikle, M. Forsberg, and E. Rubianes, "The effect of
subluteal levels of exogenous progesterone on follicular dynamics
and endocrine patterns during the luteal phase of the ewe.
Theriogenology, vol. 51, pp. 1351-1361, 1999.
[10] T. D. Quinlivan, and T. J. Robinson , "Numbers of spermatozoa in
the genital tract after artificial insemination of progestagen-treated
ewes" J. Reprod. Fert., vol. 19, pp. 73-86, 1969
[11] J. M. Corteel, B. Leboeuf, and G. Baril, "Artificial breeding of adult
goats and kids induced with hormones to ovulate outside the breeding
season". Small Rum. Res., vol. 1, pp. 19-33, 1988.
[12] B. Leboeuf, D. Forgerit, D. Bernelas, J. L. Pougnard, E. Senty, and
M. A., Driancourt, Theriogenology, vol. 60, pp. 1371ÔÇö1378, 2003.
[13] G. Martemucci, and A. G. D-Alessandro, "Strategie di miglioramento
dell-efficienza riproduttiva negli ovini. Sincronizzazione
farmacologia degli estri e delle ovulazioni. (Strategies for improve
reproductive efficiency in sheep: pharmacological synchronization of
estrus and ovulation)", Agricoltura Ricerca, vol. 183, pp. 3-18, 1999.
[14] E. Rubianes, and A. Menchaca, "The pattern and manipulation of
ovarian follicular growth in goats", Anim. Reprod. Sci., vol. 78, pp.
271-287, 2003.
[15] A. Menchaca, and E. Rubianes, "New treatments associated with
timed artificial insemination in small ruminants", Reprod. Fert. Dev.,
vol. 16, pp. 403-413, 2004.
[1] R. Gordon, "Controlled reproduction in sheep and goats. In:
Artificial control of estrus and ovulation", Gordon IR (Ed.), CAB
International, New York, 1997, pp. 87-89.
[2] W. Holtz, "Recent developments in assisted reproduction in goats",
Small Rumin. Res., Vol. 60, pp 95-110, 2005.
[3] C. Vi├▒oles, M. Forsberg, G. Banchero, and E. Rubianes, "Effect of
long-term and short-term progestagen treatment on follicular
development and pregnancy rate in cyclic ewes", Theriogenology,
vol. 55, pp. 993-1004, 2001.
[4] M. G. Diskin, E. G. Austin, and J. F. Roche, "Exogenous hormonal
manipulation of ovarian activity in cattle". Dom. Anim. Endocr., vol.
23, pp. 211-228, 2002.
[5] O. J. Ginther, and K. Kot, "Follicular dynamics during the ovulatory
season in goats", Theriogenology, vol. 42, pp. 987-1001. 1994
[6] A. Menchaca, and E. Rubianes, "Relation between progesterone
concentrations during the early luteal phase and follicular dynamics
in goats", Theriogenology, vol. 57, pp. 1411-1419, 2002.
[7] G.W. Snedecor, and W. G. Cochran, Statistical Methods, 7th ed. The
Iowa State University Press, Ames, USA., 1980.
[8] O. Gaston-Parry, K. Heasman, J. K. E. Nemorin, and T. J., Robinson,.
"A radioimmunoassay for fluorogestone acetate (FGA) and its
application to the measurement of plasma FGA and progesterone in
ewes treated with FGA-impregnated intravaginal sponges", Aust. J.
Biol. Sci. vol. 41, pp. 57-67,.1988.
[9] C. Vi├▒oles, A. Meikle, M. Forsberg, and E. Rubianes, "The effect of
subluteal levels of exogenous progesterone on follicular dynamics
and endocrine patterns during the luteal phase of the ewe.
Theriogenology, vol. 51, pp. 1351-1361, 1999.
[10] T. D. Quinlivan, and T. J. Robinson , "Numbers of spermatozoa in
the genital tract after artificial insemination of progestagen-treated
ewes" J. Reprod. Fert., vol. 19, pp. 73-86, 1969
[11] J. M. Corteel, B. Leboeuf, and G. Baril, "Artificial breeding of adult
goats and kids induced with hormones to ovulate outside the breeding
season". Small Rum. Res., vol. 1, pp. 19-33, 1988.
[12] B. Leboeuf, D. Forgerit, D. Bernelas, J. L. Pougnard, E. Senty, and
M. A., Driancourt, Theriogenology, vol. 60, pp. 1371ÔÇö1378, 2003.
[13] G. Martemucci, and A. G. D-Alessandro, "Strategie di miglioramento
dell-efficienza riproduttiva negli ovini. Sincronizzazione
farmacologia degli estri e delle ovulazioni. (Strategies for improve
reproductive efficiency in sheep: pharmacological synchronization of
estrus and ovulation)", Agricoltura Ricerca, vol. 183, pp. 3-18, 1999.
[14] E. Rubianes, and A. Menchaca, "The pattern and manipulation of
ovarian follicular growth in goats", Anim. Reprod. Sci., vol. 78, pp.
271-287, 2003.
[15] A. Menchaca, and E. Rubianes, "New treatments associated with
timed artificial insemination in small ruminants", Reprod. Fert. Dev.,
vol. 16, pp. 403-413, 2004.
@article{"International Journal of Biological, Life and Agricultural Sciences:56472", author = "G. Martemucci and D. Casamassima and A. G. D'Alessandro", title = "Synchronization of Oestrus in Goats with Progestogen Sponges and Short Term Combined FGA, PGF2α Protocols", abstract = "The study aimed to evaluated the reproductive performance response to short term oestrus synchronization during the transition period. One hundred and sixty-five indigenous multiparous non-lactating goats were subdivided into the following six treatment groups for oestrus synchronization: NT control Group (N= 30), Fe-21d, FGA vaginal sponge for 21days+eCG at 19thd; FPe- 11d, FGA 11d + PGF2α and eCG at 9th d; FPe-10d, FGA 10d+ PGF2α and eCG at 8th d; FPe-9d, FGA 9d +PGF2α and eCG at 7thd; PFe-5d, PGF2α at d0 + FGA 5d + eCG at 5thd. The goats were natural mated (1 male/6 females). Fecundity rates (n. births /n. females treated x 100) were statistically higher (P < 0.05) in short term FPe-9d (157.9%), FPe- 11d (115.4%), FPe-10d (111.1%) and PFe-5d (107.7%) groups compared to the NT control Group (66.7%).
", keywords = "Goats, oestrus synchronization, short-term protocols.", volume = "5", number = "6", pages = "342-3", }
