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Interesting Necropsy


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#1 Guest_JNeel_*

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Posted 22 December 2012 - 04:54 PM

Hello there,

First off, I'd like to apologize if I'm posting this topic in the wrong section. If I am, please let me know.

Now then, to the subject at hand.

We recently performed a necropsy on a Golden Shiner, Notemigonus crysoleucas, that was 8+ years old. Anomalies found were inflamed kidneys, mustard colored liver with dull edges, and interestingly clear liquid-filled membranes. They were located posterior to the ovaries. They appeared like clear marbles varying in sizes where the largest one was about 2 cm in diameter and the smallest one about 5 mm. Slide samples from tissues and liquid inside the membrane did not indicate any bacterial infection. The liquid inside was not viscous, similar to water.

Has anyone come across something like this before or know what they are?

Any help or direction in finding out what they are would be greatly appreciated.

Thank you,

Joe Neel

#2 Guest_fundulus_*

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Posted 22 December 2012 - 04:58 PM

An unusual hydromineral balance process involving AVT? But you'd have to characterize the number and size of parvocellular neurons in the preoptic area of the hypothalamus to really demonstrate that.

#3 Guest_JNeel_*

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Posted 23 December 2012 - 09:58 AM

I'm sorry, AVT?

#4 Guest_Ken_*

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Posted 23 December 2012 - 10:02 PM

I believe he is refering to Arginine vasotocin (AVT)

#5 Guest_fundulus_*

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Posted 24 December 2012 - 10:38 AM

Yes, arginine vasotocin, a neuropeptide that regulates hydromineral balance among other things in fishes.

#6 Guest_JNeel_*

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Posted 25 December 2012 - 12:20 AM

Thank you. I'll bring this up to our vet.

#7 Guest_JNeel_*

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Posted 05 January 2013 - 09:40 AM

Fundulus or Ken-

Would you happen to know if this particular irregularity is due to old age or predisposition? Can the chances of its occurrence be minimized through animal care management?

Thank you in advance for your valuable input.



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