It wasn’t until this recent news cycle that I figured out WHY my standard Ivermectin order was so delayed.

Hmmmm.

I always get the same dozen tubes.  Usually it is competitively priced, easy and immediate through Riding Warehouse.

Not this time.  I just couldn’t understand it… and then I realized why my standard order was 2 months delayed.

However, the good news is that the two tubes I was able to get at Tractor Supply successfully did the trick in getting rid of Princess Buttercup Pebble’s Lung worms.  Doesn’t she look so much better and brighter?!  (pic below)

IVERMECTIN DAY!

The horses love and hate worming day.  They do it, but only because they get a super special treat afterwards.  Today, it was watermelon.

Actually, I think BG likes the taste of wormer.   She practically grabs the syringe out of my hand!   She has always been that way.  She’s a very willing food experimenter.  She likes a lot of healthy snacks that the others won’t even try.

*Did you know that non-fruiting mulberry tree leaves are a natural dewormer?

A dozen boxes of Ivermectin arrive… a dozen boxes immediately in the recyle. Yay! I’m glad that’s done!

I was a month late worming (due to the delays with my order) and Gwen’s tail showed the tell-tale signs (she didn’t need her udders cleaned…).

LUNGWORMS.

I wrote about lungworms a while back.  You can read that story here.

Donkeys get lungworms.  Horses not so much.  I had never encountered lungworms with Norma or Mo.  However the two newbies came in and they were both sick with one thing or another – having come from the feedlot in Texas.

When the vet came to examine PBP, I thought she had pneumonia.  But I was wrong.  She had lungworms.  Doc gave her a shot of Ivermectin then told me to give her booster Ivermectin paste every two weeks for 2 months.

Well.  The Ivermectin aisle looked like the toilet paper aisles of 2019!  There were two tubes left of the most expensive kind, of course.  So I grabbed them – and I was thrilled to get them!  Still, it didn’t occur to me that the shortage was due to Covid.  I thought it was the time of year or maybe inflation and gas prices… Anyway, it took 2 months for me to realize that there is no Ivermectin anywhere.  I am very happy that my order was in long ago.  I do know that Riding Warehouse just got in their supply.

Here is a pic of PBP after her Ivermectin treatments.  No more shaggy hair (the first pic is in mid July – it is hot here, everyone is shed out by then) and she now has hardly any lung rattle (she has some scarring).  She looks so much brighter!

The pic on the left was mid July, and it was hot. PBP is young and should have been shed out… . After her Ivermectin treatments, she is now shed out with hardly any lung rattle. Lung worms.

We are very close to our goal!  We only need $715 to meet our goal for “Donna’s 10”!  THANK YOU THANK YOU!

SEPTEMBER BUCKET FUND:   In honor of Donna (my mother), Let’s help 10 neglected and starved oldsters! September Bucket Fund: “Donna’s 10!”
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Princess Buttercup Pebbles has Lungworms.

How?  Well, she is a BLM donkey and I’m told that lungworms are prevalent in the BLM holding facilities for donkeys… she probably caught it there and was never treated and then carried it with her to the feedlot meat market where we found her in Texas.

When she came here, we gave her Strongid along with our other horses for their Spring wormings.  I had assumed that she was given Ivermectin when she was rescued, but I could have been wrong about that.  If she was given Ivermectin, it didn’t kill all the larvae…

He knew pretty quickly what was up…

SYMPTOMS

PBP didn’t cough at all… but she had a snotty nose – which we treated initially with Uniprim for a month.  Everything cleared up and I thought that was the end of it.  Then it came back, so the vet came out to figure if it was a bad tooth, a baby cap, a sinus infection…

He listened to her lungs… her face and sinuses… then he palpated her face and sinuses and took her temp, put fingers up her nostrils and smelled for infection… everything pointed to lungworms.

He said lungworms were common with BLM donkeys and she had a related infection in her respiratory system.  The fact that a young donkey hadn’t shed (she’s still shaggy) confirms it for him.

Poor baby.

He also said that she’s just 4 years old, looking at her teeth.  (I intend to shave her brand to read it correctly.  Right now, it is illegible.)

Ethel Merdonk and little Princess Buttercup Pebbles

??  I had never heard of lungworms.   Evidently, they are prevalent in donkeys and in cattle, however the species of lungworms are different in donkeys and cattle.  Horses rarely get lungworms because they are a bad host.  The worms cannot reproduce and die.  Most horses are regularly wormed with Ivermectin so it is a bit of a non-issue in regularly treated horses.

Below are the symptoms… and she had 2.  Basically, she was skinny/shaggy – and she had good nutrition and grass hay 24/7 (failure to thrive), plus the nasal discharge.  She didn’t cough or any of the other markers.

CURE – IVERMECTIN

If I had wormed her with Ivermectin, she would still have probably needed a second dose in 3 weeks and in 6 weeks.  So, that’s what is happening now.  I’m glad I had the vet out because even on our regular worming schedule, I would not have given her enough Ivermectin – often enough –  to kill this bad of an infection.

The vet gave her a shot of wormer, a shot of antibiotics, she is on daily antibiotics for a long dose and she will be wormed again in 3 weeks and 6 weeks.

Ethel Merdonk will have Ivermectin, too.  In fact, everyone will get a dose, just in case.

ARTICLES

The original article from Horse DVM linked here.

Click image to go to the original article

Go to Stable Management article here.

Click to go to article

Many horse owners these days (including me) have a donkey or two on their property. They make great companions, and most horse folks think they are adorable. Many of these donkeys have been rescued or are given to farm and stable owners.

Donkeys are asses, so they have some different problems than horses, including a propensity to be easy keepers. One thing that is usually mentioned, but not completely understood, is lungworms that are associated with donkeys.

Horses that graze with donkeys can be exposed to lungworms. While donkeys with lungworms generally won’t show any clinical signs of disease, horses that graze with donkeys can pick up the parasite, which can cause respiratory problems.

Species Specific

We asked Dr. Nathan Voris, a field veterinarian with Zoetis, to give us some basic facts about lungworms in donkeys and horses.

The lungworm found in donkeys is Dictyocaulus arnfieldi, which is different from the lungworm found in cattle (Dictyocaulus viviparous), which causes severe lung damage. These two lungworms do not cross animal species (cattle lungworms don’t infect horses and donkeys), but horses can get lungworms from infected donkeys.

Life Cycle and Description

These internal parasites are up to 80 mm long (3 inches) and are a white worm.

Dictyocaulus spp. are host-adapted, meaning horses are almost never infected unless they are grazing with donkeys, according to Voris. “D. arnfieldi cannot reach adult, reproductive stages in the horse, so an infected horse cannot infect other horses,” he noted. “Infected donkeys are clinically unaffected by lungworm infections, whereas horses can suffer respiratory irritation/bronchitis. In the donkey, adult worms live in the terminal bronchioles and can be found in the major airways. Following reproduction, immature lungworms–or larvae-a-re coughed up, swallowed, then passed in the feces, infecting the pasture.”

What this means is that while lungworms can infect horses, they cannot reproduce in horse—which makes horses a “dead-end host” for this parasite.

“Since horses are not definitive hosts, reproductive stages will not be found in horses,” emphasized Voris. “Therefore, eggs and larvae of Dictyocaulus arnfieldi will not be present in feces, making them difficult to identify as the definitive cause of respiratory disease in the horse.”

Larval culture of donkey feces is the definitive diagnostic tool.

Problems in Horses

In horses that show clinical signs of coughing or respiratory disease, it can be difficult to diagnose lungworms as the culprit. For horses with respiratory problems that graze with donkeys, a veterinarian might take a fecal sample from the donkey to look for the lungworm larvae or perform diagnostic tests to further define the type of Inflammatory Airway Disease (IAD) being experienced by the horse.

“Unlike cattle lungworm infection, equine lungworm infection is restricted to the bronchial tree (the part of the windpipe just before and after it branches to go to each lung) so lung damage, per se, should not occur,” noted Voris. “However, lungworms can cause Inflammatory airway disease, which can be difficult to manage. Unfortunately, lungworm infection can be difficult to definitively diagnose as the cause of the problem and is often diagnosed via ‘guilt by association’ when there is a history of the horse grazing with a donkey.”

Prevention and Treatment

Voris said horses grazing with donkeys are at risk for lungworm infections. “Make sure both the horses and donkeys are dewormed appropriately,” he advised. “Grazing horses and donkeys in separate pastures will prevent exposure.”

Your veterinarian can help advise you on how to best protect your horses and donkeys against parasite infections.

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HORSE AND MAN is a blog in growth... if you like this, please pass it around!