Aborting Cows

So, with everyone in full on stir-crazy/vaguely hysterical mid-revision mode it was likely to be an ‘interesting’ #vetfinals

Let’s get going:

Wendela started by making us all insanely jealous

And even Liz’s dogs wanted to join in!

Sooo, here’s the case

The differentials list for abortions in cattle:

We’re getting there!

So close!

For infectious we have:
– BVD
– IBR
– Lepto
– Salmonella
– Schmallenberg
– Listeria
– Brucella
– Neopsora
– Mycotoxins

And non-infectious:
– Stress, trauma
– Poor body condition/nutrition and can’t cope
– Accidental AI (oops)
– Accidental injection with PG or steroids
– Iodine deficiency
– Congenital disease of the calf
– Hyperthermia
– Bad rectal exam
– Concurrent disease

One last point on congenital diseases

Questions for the farmer please!

Time for some answers

This guy is on it!!  http://www.noahcompendium.co.uk/MSD_Animal_Health/Bovilis_SBV__suspension_for_injection_of_cattle_and_sheep/-61483.html 

More questions?

The state of the aborted material is important!

Not the pleasantest of thoughts, but this was a case I saw on rotations where a cow had aborted and several had nasty haemhorrhagic diarrhoea – then the farmer started describing his diarrhoea issues over the past week… Salmonella jumps straight to the top of the list!

Diet is important to think about…

http://twitter.com/JessfBowen/status/341997686674837504

A bit more on the vaccination status of the herd:

This is important to consider, as highlighted in the Farmers Weekly I was reading yesterday…
 http://www.fwi.co.uk/articles/09/05/2013/138952/delayed-animal-treatment-could-compromise-vaccine-efficacy.htm#.Ua8EJBVwbIU 

What about the fertility in the herd?

Let’s consider how everything gets pregnant

BIOSECURITY part 1

BIOSECURITY part 2

One more thought

http://twitter.com/JessfBowen/status/342000710025621505

Now we have some more details, how are we going to quatify the problem?

Nail hit soundly on the head there

How are we going to differentiate these?

http://twitter.com/JessfBowen/status/342002381493506050

Boom. Next steps…

So all abortions SHOULD be reported to AHVLA…

Ahhh, you do now though Lee, and that is the beauty of #vetfinals

So what samples would our lovely friend Alan at the AHVLA like us to send in?

But, what are the chances of lovely Alan giving us a diagnosis, even if we are tip-top vets (and obviously we all will be) with immediate sending of nice fresh samples of all of the above?

So not too good despite our tip-top vettiness. Do we blame Alan then?

Lee has no confidence in the new final years…

More reasons!

So this time Alan and the little newbie final years (they were obviously still at the uber-enthusiastic stage…) have been beavering away and have been SUCCESSFUL!

Drage getting a bit excited there over the thought of small animal condition!

Annnnnd we have Neospora. Thoughts please?

What is the other big thing we need to consider with Neospora?

Annnnd here it comes with the excellent small animal neuro knowledge 🙂

So what do we need to consider with regards to our cows that have already aborted?

So why is this all important?

So lot’s of Neospora = BAD

Back to the naughty infective dog

So what are we going to do about the whole issue?

Is it bad that TLC for cows just makes me think of someone going and giving them a big cuddle and tucking them up Gayle-style in horse rugs?

Now Lee was in favour of a dog cull…

What are we going to do about our infected dog now we are not killing it?

Treatment in smallies:
– Clindamycin (8
weeks)

– TMPS with folic acid
supplementation for cats

– Repeat PCR and
serology before ending treatment

So we have decided we need to test and treat the dog, then improve our dog/cow hygiene to try and stop spread between the two.

Now, back to the cows

For anyone else who’s brain is in the same revisionmush state as mine:
– Horizontal transmission: spread via dogs, deer and cows ingesting each others placentas (urrrrgh…)
– Vertical transmission: transmission across the placenta in 90% of infected cows – very efficient!

Vertical transmission results in:

1. PI calf

2. Abortion
3. Healthy uninfected calf
(rare)
If we do want to go down the cull and replace route (along with our excellent new dog-related biosecurity), what do we need to consider?

And for replacements from our herd?

Nearly there with our plan!

^ This is a nice link for all you need to know about testing and control!

What about vaccination?

And treatments?

What about our breeding options?

First things first, the bull:

And embryo transfer:

And finally BVD:

So, we’re all done!
For a bit more reading that covers testing protocols and little overviews of different diseases, check out this In Practice article:  http://inpractice.bmj.com/content/29/8/455.full.pdf+html?sid=a988b4ac-78fc-4616-9bef-b6c1c4531e9d 

Lee was obviously very happy with the situation:

But Drop found the whole experience exhausting!