Liver fluke and spring – comment from Dr Boray

TO: WormMail list (recip list undisclosed)    cc Sally E.   Autoposted to Posterous etc

International fluke guru Dr Boray comments on a WormMail (back in July) on liver fluke.

"Dear Steve,
I have to thank you again for not forgetting the flukes (You never did).

The intermediate snail hosts happily survive our so-called winter and also in the dry mud. If they were infected in late summer and early autumn the development of fluke larvae slows down or stops, but the larvae never die as long as the snails are alive.

After a few weeks in warm spring and a little moisture they complete their development and contaminate the pasture with metacercariae. There is more of a  problem if the stock missed the autumn drench. The surviving flukes are already adults and the fluke eggs contaminate the pastures and infect the surviving and fast multiplying snail populations in the spring and early summer.

A treatment is necessary in August-September.

It would be a good idea to have a egg count. Flukes are very clever at surviving.
Best wishes for the flukey farmers from an old parasitologist who will never die, but will eventually complete his life cycle.
Joe Boray    29 July 2009"

So, if you have liver fluke, did you treat in April?

Do you need a Spring treatment?  Have you done it yet?

Use a highly efficient flukicide in autumn – eg a triclabendazole product – then rotate to a different type of flukicide in spring.

Testing for fluke?  Worm egg count – looking specifically for liver fluke eggs – or liver fluke ELISA (blood test).  For details, check the Vet Lab Manual at our website.

Stephen Love
Veterinarian / State coordinator ~ internal parasites
Primary Industries | Industry and Investment NSW
Armidale District Office |

Autoposted to  Posterous, Tumblr, WordPress, Blogger, Twitter

Latest publications relating to parasites:

Sep 2009 Trapping blowflies (Primefact 842)
Spray-on flystrike prevention (Primefact 844)
Hand jetting sheep (Primefact 843)

Posted via email from vet26mi


Profarm Short courses – Faecal Egg Counting Course + others – Tamworth Oct/Nov 2009

TO: WormMail list and others (Wormmail 2009-09-22-1300)   (Autoposted to etc)

These courses may be of interest, if only for those in the north of the premier state. Doubtless there will be others near you.

I have rearranged the order of courses to reflect their importance, i.e. the worm-related course is listed first. 🙂

Mindful also that some of you have slow internet connections, I have stripped off all the PDF attachments.

For more information, contact Julie Chapman or Cassie Gardiner at Tamworth (see below for contact details) or go to

Note the 4WD course in this case only applies to NSW DII (DPI) and LHPA staff. (‘Good for those who are in a rut. Perhaps a name change is in order?).

If there are any typos above, please see the information on sproof-reading below. (Thanks to LC, who also referred me to a book on this subject, “A steroid hit the earth”).

Veterinarian / State coordinator ~ internal parasites


Hi All –


We are running a 2 day accredited 4WD course in Tamworth on 21-22 October. The course fee is 50% funded by Staff Training & Development for DPI and LHPA staff. This means your program will have to pay the remaining $247.50 GST free  (instead of $495 GST free). Any accommodation costs must be met by your program.

A flyer with details of the course is attached.  If you would like to attend could you please complete and return the fax back form attached to either Cassie Gardiner or Julie Chapman – Fax: 6763 1222.

We have also schedule the following two courses which are not funded by ST&D.

Date                20-22 October, 2009 (3 day course)
Cost                $375 GST free (includes up to 2 people per farm enterprise)
Trainer         Neil Griffiths

Date                10 November, 2009 OR 11 November, 2009 (1 day course)
Cost                $245 GST free
Trainers        Steve Love & Doug Richard

We are also running two more 1-day Faecal Egg Counting courses in Tamworth in November.

Attached below are the course information flyers and fax-back forms for these courses. If you or any of your staff, colleagues, family or friends are interested in attending, could you please pass this information on.

If you need any further information, please do not hesitate to call us: Cassie Gardiner (6763 1276 – tue, wed, thur) or Julie Chapman (6763 1285 – tue, wed).


Julie Chapman | Primary Industries, PROfarm Short Course Program
Industry & Investment NSW | 4 Marsden Park Road | Tamworth NSW 2340
T: 02 6763 1285 | F: 02 6763 1222 | E:
W: |


Here is one that came in today. The subject line in an email:

Hay Shed Fires Primefact on website

Proofreading is a dying art, wouldn’t  you say?

Man Kills Self Before Shooting Wife and Daughter
This one I caught in the SGV Tribune the other day and called the Editorial Room and asked who wrote this.  It took two or three readings before the editor realized that what he was reading was impossible!!!  They put in a correction the next day.
I just couldn’t help but sending this along. Too funny.
Something Went Wrong in Jet Crash, Expert Says

No crap, really? Ya think?


Police Begin Campaign to Run Down Jaywalkers

Now that’s taking things a bit far!

Panda Mating Fails; Veterinarian Takes Over

What a guy!


Miners Refuse to Work after Death

No-good-for-nothing’ lazy so-and-so’s!


uvenile Court to Try Shooting Defendant
See if that works any better than a fair trial!

War Dims Hope for Peace

I can see where it might have that effect!


If Strike Isn’t Settled Quickly, It May Last Awhile
Ya think?!


Cold Wave Linked to Temperatures

Who would have thought!


Enfield ( London ) Couple Slain;
Police Suspect Homicide
They may be on to something!


Red Tape Holds Up New Bridges

You mean there’s something stronger than duct tape?

Man Struck By Lightning:
Faces Battery Charge
He probably IS the battery charge!


New Study of Obesity Looks for Larger
Test Group
Weren’t they fat enough?!


Astronaut Takes Blame for Gas in Spacecraft

That’s what he gets for eating those beans!

Kids Make Nutritious Snacks

Do they taste like chicken?

Local  High School Dropouts Cut in Half
Chainsaw Massacre all over again!


Hospitals are Sued by 7 Foot Doctors

Boy, are they tall!

And the winner is….

Typhoon Rips Through Cemetery; Hundreds Dead

Did I read that right?


Posted via email from slvetnet

Posterous new home for 'Auswormblog' ? (wormmail 2009-09-21-1200)

WormMail is an electronic mailing list I set up a number of years ago.(Subscription through )

It is a vehicle for monthly WormFaxes (a round up of worm egg counting results around the state), Turning the Worm (a newsletter that in theory comes out 2-4 times a year – I haven’t forgotten you Dr Nilon), and occasional news items (1-3 times? a week).

Lately I have been posting most WormMails on a blog called ‘auswormblog’ at the WordPress site.

Some people have trouble accessing this due to their corporate set ups, although the I.T. people for most organisations are usually happy to allow access to individual blogs or sites on a case by case basis. For example Joedy Frape, IT guru for the LHPAs, kindly re-jigged things so District Vets could get access to auswormblog.

(The Qld DPI (now DEEDI) seems to be screwed down so tight that nothing gets in or out. (Sorry Maxine – perhaps some of your colleagues were spending too much time on Facebook) :-).

I was investigating ‘Posterous’ over the weekend -after reading this – and thought it may have a lot of potential. I set up one for personal use and so far am impressed with Posterous.

When items are posted on Posterous, they can also be automatically posted to other places (eg other blogs, Facebook, Twitter etc).

At the moment, I have set up Posterous ( ..  maybe I should have called it ‘posturing’ ?) to auto-post to auswormblog and Twitter (slagvet).  

Is all this a pointless waste of time?  Maybe, but some people like to ‘communicate’ this, and some even like Twitter and similar things in the Status-sphere ( new word I learnt).

(In a similar fashion, there are people who gave up writing letters with ink and quill, and started using email. Maybe you are one of them?).

One advantage of having WormMail in the ‘blogosphere’ as well as in emails, is that you can easily go back and find things on a blog. (Blog is short for web-log).

The other thing I have to improve is how I manage the WormMail mailing list. Currently I do this in the email client (Lotus Notes) on my work computer. This can take up a fair bit of time because people leave jobs, change emails, get deported etc without telling me. Something like Google Groups may be a solution: I don’t know. (I don’t like the Listserv option much).

For those who have given me feedback (OK, the positive stuff is especially nice) – and let me know when they change addresses or want to unsubscribe –  a big thank you. It’s appreciated.

And a big thank you also to those who completed the WormBoss on-line survey and/or provided other feedback – on the new website for example (Yes, there are some problems).

But things change so fast: what will be ‘THE thing’ next week??  🙂

Stephen Love
Veterinarian / State coordinator ~ internal parasites
Primary Industries | Industry and Investment NSW
Armidale District Office | Tel: +61 2 6738 8519 | Useful links

If the above is all too much, you might like this:

Painting by Derek Bacon

From:   |  

This message is intended for the addressee named and may contain confidential information. If you are not the intended recipient, please delete it and notify the sender. Views expressed in this message are those of the individual sender, and are not necessarily the views of their organisation.

Parasitic and other sheep diseases being monitored at NSW abattoirs

The following article is by Dr Bruce Watt of Tablelands LHPA (central tablelands area of NSW) and is published here with permission.

(Hyperlinks added by blog owner).



In the last few weeks, a number of sheep producers have phoned to ask me about bladder worm (Cysticercus tenuicollis) in sheep. The reason for the sudden interest in this parasite is that these producers have recently consigned sheep for slaughter. Abattoir meat inspectors have detected bladder worm in the carcase. These finding have now been reported back to producers via the National Sheep Health Monitoring Program.

The program is being piloted in the Tablelands LHPA. Meat inspectors are reporting on a wide range of conditions from hydatids, sheep measles, liver fluke, OJD (ovine Johnes disease)  and pneumonia to grass seeds, dog bites and bruising.

Dr Ian Links, Biosecurity Special Projects Officer who works for an alliance between Industry and Investment NSW and CSU Wagga then collates and distributes the reports to producers.

Bladder worm is a tapeworm cyst. It is quite common and is sometimes mistaken for hydatids. However as the name suggests the cysts look like a bladder filled with clear fluid. It also contains a white spot, the tapeworm head. These cysts occur around the liver while the adult tapeworm lives in dogs.

I needed to know more before answering the questions these producers put to me so I turned to Dr David Jenkins now also at CSU. I have known David for nearly thirty years and have always enjoyed his infectious enthusiasm. He is also a world expert on tapeworms.

David reminded me that dogs acquire the tapeworm when they are fed sheep offal that contains the cysts. The mature tapeworms inside dogs produce segments every day or two and these segments contain a massive number of eggs. These eggs are also tough, surviving for a year or two.

Sheep consume the eggs when they eat contaminated pasture. After the eggs hatch inside the sheep, the little worms burrow through the gut wall and migrate through the liver causing damage along the way. If sheep eat sufficient larval their health and productivity can be affected.

The larvae then develop to form a cyst on the liver while they wait for the opportunity to become a dog’s breakfast and complete their life cycle.

Bladder worms are harmless to dogs and people but their presence indicates that tapeworms are maturing in home or visiting dogs. This means that these dogs could also be carrying the much more serious hydatid tapeworm or the tapeworm that cause sheep measles.

If you have lived in rural NSW for a generation or two you will almost certainly know someone who has suffered the consequences of hydatid cysts. As you will know, they are dangerous and can be fatal.

Sheep measles causes small white cysts through the meat leading to carcase condemnation. Fortunately, it is not a health risk to consumers but the rice grain sized lumps in their roast do not impress them. You will also not be impressed when the abattoir reports to you that they have condemned a proportion of your consignment.

Therefore, if your get a report of bladder worms in your sheep consignment take it as a gentle reminder that you need to control tapeworms in your dogs. You can do this by dosing them every 4-6 weeks (using a product containing praziquantel) and by ensuring that your dogs and those of your visitors are not fed fresh sheep meat (unless it has been frozen for 14days) or offal.

Remember that dogs belonging to casual farm workers are a source of tapeworms. It is recommended that you ask that they be tied up for 3 days after dosing and their droppings collected and disposed of safely.

The National Sheep Health Monitoring Program has the potential to deliver valuable information both to individual farmers and to the region. I am sure I will be reporting more of its findings to you in the future. I would like to commend The Sheepmeat Council of Australia, WoolProducers Australia and Industry and Investment for supporting this initiative.


For further information on larval cestodes of sheep and other animals see:

The following Primefacts at the NSW DII website:

The sheep measles Primefact also has a table with a summary of ‘cysts of larval cestodes (tapeworms) of sheep and cattle’.

Also see the WormBoss website: (The old URL, , will redirect to the new location).

While you are there, spend a few minutes doing the WormBoss on-line Survey.  🙂

Treating for stomach fluke in ruminants

This follows on from an email from a vet asking about treating for paramphistomes. This and other aspects of stomach fluke is discussed in the primefact on stomach fluke. Also see WormBoss:

Firstly, the mere presence of stomach fluke in the forestomachs of cattle or sheep, or their eggs in the faeces, does not indicate that treatment is necessary. Clinical disease (paramphistomosis) only occurs in certain areas (for example, the NSW North Coast) and under defined conditions, and is due to duodenitis from large numbers of migrating immature fluke.

Nilzan(R) (levamisole + oxyclozanide),  especially now that Mansonil(R) (niclosamide) is no longer available,  is the only product effective to a useful degree against immature stomach fluke.

However the product is not registered in NSW for this use  in cattle. Off-label use can only legally be done under veterinary prescription. For this reason Nilzan was removed from the current edition of the stomach fluke Primefact, although veterinarians can get more information by checking the references listed in the Primefact.

Dr Joseph Boray – long time expert on stomach and liver fluke (and one of the people behind the development of triclabendazole), responded at my invitation to our discussion on treating for stomach fluke. Here below is his letter, used with permission.

Boray J-Mail0016-paramphistomes 1-200908

Boray J-Mail0016-paramphistomes 2-200908


stom fluke primefact