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Buserelin Ovulation time ?

Equine-Reproduction.com Bulletin Board » Hormonal Manipulation » Buserelin Ovulation time ? « Previous Next »


Author Message
 

Torsten Tiemann
Nursing Foal
Username: Qhbreeder

Post Number: 17
Registered: 07-2006
Posted on Monday, April 12, 2010 - 10:46 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Hi Jos ,
Is there an average ovulation time research available on Buserelin 40 µg given i.m on a 35 mm Fol.If no did you do some research on this new Ovulation hastner.....?
Anyone knows ?

Thanks Torsten
 

Jos
Board Administrator
Username: Admin

Post Number: 2799
Registered: 10-1999
Posted on Monday, April 12, 2010 - 11:31 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Buserelin has been used for some time to induce ovulation - I know of it being used in the late '90's and research (I. Barrier-Battut, N. Le Poutre, E. Trocherie, S. Hecht, A. Grandchamp des Raux, J.L. Nicaise, X. Vérin, J. Bertrand, F. Fiéni, R. Hoier, A. Renault, L. Egron, D. Tainturier, J.F. Bruyas; 2001: Use of buserelin to induce ovulation in the cyclic mare Theriogenology 55;8:1679-1695) was performed in 2001. In those cases treatment was multiple times a day.

In more recent research (Levy I, Duchamp G.; 2007: A single subcutaneous administration of buserelin induces ovulation in the mare: field data; Reprod Domest Anim. 42(5):550-4) a single treatment has been used with similar efficacy.

The time frame to ovulation would appear to be approximately the same as for hCG or the other GnRH product currently in commercial use (Deslorelin), being in the approximately 36-40 hour average range. You will note from the two cited documents that the evaluation ranges were 24-48 hours, which also coincides with hCG and Deslorelin.
 

Torsten Tiemann
Nursing Foal
Username: Qhbreeder

Post Number: 18
Registered: 07-2006
Posted on Saturday, April 17, 2010 - 08:02 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Ok thanks Jos ,
Thought there would be an exact study for exact time of Ovu. like for Des. ....... arghhhhhhh

Thanks
Torsten
 

Jos
Board Administrator
Username: Admin

Post Number: 2809
Registered: 10-1999
Posted on Saturday, April 17, 2010 - 12:23 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

There hasn't been a commercial product produced with that intended use, so no research that I'm aware of I'm afraid! :-( (And actually, most of the research for Deslorelin and hCG gives % ovulations within 40/48 hours rather than a specific time).
 

Torsten Tiemann
Nursing Foal
Username: Qhbreeder

Post Number: 19
Registered: 07-2006
Posted on Sunday, April 18, 2010 - 03:29 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

On deslorelin remember the study you told me in the deslorelin thread ov time -
I geuss it was average % of 44,2 hours !

Its here in the Hormone section



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