Need help! Another sudden chicken death. This time on video.

[CanadaEh]

Got another sudden chicken death within 10 days, this time it was caught on video

Explanation/timeline for ease of tracking:
@0:35 she gets out of the coop. Chickens are thirsty after night in the coop, she is the lowest in pecking order so she keeps distance as usual
@1:21 frenzy starts because of veggie scraps are thrown. She runs under coop thinking the disturbance was caused by danger
@1:37 she runs from under a coop to take a sip from nipple waterer
@1:53 takes a poop behind the roof post?
@2:00 first signs of problems - being unsteady on her feet on the coop deck, then crawling and "nesting" against coop wall
@13:20 some pecking starts by other chickens causing her to flip on her back with wings out @13:42 and she is ever still after about @14:25
Please ignore the audio - it seems to be super slow and out of sync.

Here another view from inside the coop. She jumps from the roost @0:15 and goes out the coop door @0:39

Any clues from the videos and suggestions what organ failures to look for while doing necropsy?

This is the second chicken sudden death within 10 days. The first one happened in the coop overnight 10 days ago (thread: https://www.backyardchickens.com/threads/chicken-sudden-death-overnight-causes.1448114/) and with no other clues I had to attribute it to chickens getting soaked in the rain with freezing temps overnight and some chicken(s) not able to find the roost after lights out in the coop, but this one is in a broad day/morning with very mild temps overnight.

 

[Wyorp Rock]

I'm sorry about your hen.

Do you still have the body? If so, can you send the body for necropsy or do an informal one yourself? Sometimes even with home necropsy you may find something.
Take some photos if that's something you plan on doing, we'll try to help you with what you see.

 

[MamaBelle5]

I know nothing about this sort of thing and I am very sorry for the unexpected loss of your hen.

In watching the video I see a lot of food scraps. Is it possible that some of the food got moldy and she ingested it?

 

[CanadaEh]

I In watching the video I see a lot of food scraps. Is it possible that some of the food got moldy and she ingested it?

nothing gets moldy inside the run - everything either gets eaten or composted.

 

[MamaBelle5]

nothing gets moldy inside the run - everything either gets eaten or composted.

As I said, I had no real clue, I was just trying to think of something that could have caused it. I am sorry for the loss of your chickens. The rest of the flock doing okay?

 

[CanadaEh]

Do you still have the body? If so, can you send the body for necropsy or do an informal one yourself? Sometimes even with home necropsy you may find something.
Take some photos if that's something you plan on doing, we'll try to help you with what you see.

Have done necropsy last night and did not see anything extraordinary, so had to take lots of pictures (click spoiler button below). Here are some questions/observations:
1) lots of blood inside is it normal for non-butchered bird?
2) is the gizzard supposed to have easily separable liner?
3) I knew she was under developed and not laying at 6 months, but I was surprised not to see any developing eggs "chain" unless I did not look far enough.

I would really like to know if you see anything wrong in the innards, as well as how is it possible for the bird to start acting sick and die within all in 15 minutes (video above).

Thank you

Spoiler: Graphic content

 

[Wyorp Rock]

Have done necropsy last night and did not see anything extraordinary, so had to take lots of pictures (click spoiler button below). Here are some questions/observations:
1) lots of blood inside is it normal for non-butchered bird?
2) is the gizzard supposed to have easily separable liner?
3) I knew she was under developed and not laying at 6 months, but I was surprised not to see any developing eggs "chain" unless I did not look far enough.

I would really like to know if you see anything wrong in the innards, as well as how is it possible for the bird to start acting sick and die within all in 15 minutes (video above).

For me, lots of blood would not be normal. Probably bled out from a rupture.
I have had a pullet that seemed perfectly healthy - eating/drinking/active 1 minute only to look out the window when I went inside and she was in the last reflexive moves of dying. I necropsied her - her abdomen was full of blood. The only thing I could figure was her liver ruptured, but I couldn't be sure - whatever ruptured - she was gone in just a few short minutes.

The lining of the gizzard - you generally should be able to remove that by hand, it's not that hard to take off.

You didn't see any ovaries (ovum) at all? You may have missed them with all the blood, they are along the back.

 

[Eggcessive]

Liver issues can cause bleeding. One of mine had presumed fatty liver hemorrhagic disease, and had a large clot of blood next to the liver. But I have never seen frank blood inside the abdomen. Could the chicken have gotten into rat poison, or eaten something sharp that caused bleeding? Your state vet can usually find a cause of death with a necropsy, if you lose anither. Sorry for your loss.

 

[CanadaEh]

Liver issues can cause bleeding. One of mine had presumed fatty liver hemorrhagic disease, and had a large clot of blood next to the liver. But I have never seen frank blood inside the abdomen. Could the chicken have gotten into rat poison, or eaten something sharp that caused bleeding? Your state vet can usually find a cause of death with a necropsy, if you lose anither. Sorry for your loss.

So you are 100% positive there should be no blood in the abdomen just because the chicken was not butchered/bled and was dead for about 12 hours at +10C? I have examined gizzard and guts and did not find any blockages or ruptures. We do use any poisons on the property.

 

[Kiki]

So you are 100% positive there should be no blood in the abdomen just because the chicken was not butchered/bled and was dead for about 12 hours at +10C? I have examined gizzard and guts and did not find any blockages or ruptures. We do use any poisons on the property.

That is a lot of blood.

Do you feed treats often?