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Leech News – Growing leeches

In 2014, we completed a repair and upgrade of an existing building that is now ideal for leeches.  This allows for better control of their environment. We tend to the leeches seven days a week with everything kept as clean as possible.  We have our own bore, which supplies pathogen free water. 



The Leech Shed, home to more than 30,000 leeches! 

Leeches hatch from eggs and then take up to four years to be big enough for sale.  It can take up to five years to get a leech to ideal breeding size. Leeches are fed with top quality blood.



Newly hatched baby leeches with breeders. 

Newly hatched leeches are incredibly small.  We call them ‘threads’ as they are much like a swimming piece of cotton.  Some are so small as to be difficult to see.   They are very difficult to handle and can suck on to most things.  We try to hatch up to 10,000 each year.  Happily, leeches are hermaphrodites so at least we do not have to sort the sexes.



Once fed baby leeches, a little bigger!



Growing leeches, some almost ready for sale. 

We are constantly trying to lift the bar with the standard of our leeches.  It is a slow process, for which there is no manual, so therefore, I am writing the manual!  It may take another few years to complete, but due to commercial sensitivity, it will not be published.

As a rule, we do not export.  Other companies have overseas covered and due to our bio-security laws, leeches cannot be imported.


Did You Know?
  • Leeches have been used in medicine for thousands of years and are still in use today.
  • Leech therapy is called Hirudotherapy in Europe.
  • In New Zealand our leeches are the species Richardsonianus mauianus.