- news, features, articles and disease information for the fish industry

The information below is presented by on behalf of MSD Animal Health.
If you wish to contact MSD Animal Health please visit their contact page
MSD Animal Health on
Country Sites
Home » Temperate » Gonazon™ for fish
Gonazon™ for fish

Gonazon™ for fish

Gonazon™ for Fish is a potent analogue of gonadotrophin-releasing hormone (GnRH/LHRH), azagly-nafarelin, for induction and synchronization of ovulation for the production of eyed-eggs and fry.

Gonazon™ for Fish has the following features in female salmonids:
  • Advance and/or synchronise ovulation early in the spawning season

  • Often 90-95% of ovulations within 9-19 days

  • Will typically advance mean spawning time by 2-3 weeks

  • Advance and/or synchronise ovulation late in the spawning season

  • Reduces production costs in last 3-4 weeks of spawning season

  • Even works with Atlantic salmon broodstock kept in brackish water

» More Information on Gonazon™ for fish

This general information is aimed at International Vets and Fish Farmers - to find specific regional information please select your country from the list below

© 2011 MSD Animal Health

Product indications, usage instructions & withdrawal periods may vary by Country.
Always follow label instructions and consult your veteriarian or fish health adviser.

This page contains information on veterinary pharmaceutical and biological products that are sold in several different countries and areas where they may be marketed under different trade names and pursuant to different regulatory approvals. Accordingly, TheFishSite and MSD Animal Health give no guarantee that the details presented are correct with respect to all locations.

Advertisments and/or reference to commercial products or trade names within information provided by does not constitute an endorsement by and does not imply discrimination against any other similar products. This information is aimed at veterinary surgeons, veterinary nurses, pharmacists or professional keepers of fish.

Our Sponsors


Sustainable Aquaculture Modular Courses AVAILABLE NOW - University of St Andrews

Seasonal Picks

Know Your Freshwater Fishes - 5m

Aquacullture Webinars from TheFishSite - Sign Up Now