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hi Richard,</div>
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We used Sigma HCG for years and found it to be very reliable. We switched to chorulon at the request of our Animal Care people (who later declined to provide the needed prescription). We've been using Ovine Luteinizing Hormone - in our animals, this is more
variable than Sigma's HCG.</div>
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<br>
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best,</div>
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Amy</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> xenopus-bounces@lists.mbl.edu <xenopus-bounces@lists.mbl.edu> on behalf of Richard Harland <harland@berkeley.edu><br>
<b>Sent:</b> Thursday, October 13, 2022 5:49 PM<br>
<b>To:</b> xenopus@lists.mbl.edu <xenopus@lists.mbl.edu><br>
<b>Subject:</b> [Xenopus] Problems with HCG</font>
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<div class="">Dear Xeno(pus)philes</div>
<div class="">We recently switched to using Sigma HCG, and have had very unreliable and late ovulations. Is this a general issue with Sigma HCG? Or might this be a bad batch? </div>
<div class="">Previously we used Chorulon, during an ordering problem, which fortunately has been overcome.</div>
<div class="">Richard Harland</div>
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