Fell down this rabbit hole, it has to do with the use of NSAIDs (like Celebrex, Meloxicam, etc) and the thinning of egg shells.

https://www.sciencedirect.com/science/article/pii/S0160412022005657

NSAIDs have been implicated in the death of vultures.

Tylenol is not an NSAID btw.
I wish there was info about the half-life of these in the birds (i.e. how long does it take for the liver and kidneys to break down and process/remove from the body.). I know it accumulates some, but how much??
 
I wish there was info about the half-life of these in the birds (i.e. how long does it take for the liver and kidneys to break down and process/remove from the body.). I know it accumulates some, but how much??
I agree with the general lack of information. There is so much missing information on chickens tbh. One would think we would know everything there is to know about them by now but sadly the vast majority of the studies are done on commercial chickens which sometimes is relevant but often isn’t for backyard keepers. It is beyond frustrating when we are on our own so much of the time with caring for them and spans almost all topics about chicken health and care.

I would have lost many more chickens than I have if not for websites like this and people sharing what they know and their experiences freely.
 
I wish there was info about the half-life of these in the birds (i.e. how long does it take for the liver and kidneys to break down and process/remove from the body.). I know it accumulates some, but how much??

There likely is somewhere - I know that when they figures out that Diclofenic was killing the vultures in India, there was a lot of studies done.

It now banned in India I have read somewhere. It was too heavily used in cattle, and in humans that were then consumed by the Vultures in a sector of the population (their belief in everything being connected).

I fell down the rabbit hole as I was trying to find out about Previcox and chickens. Couldn’t find any info on it.
 
I got 2 Polish and one Bresse, chosen by DJ, as my first chickens. The Bresse terrorized my poor Polish. I added 7 full size pulleys, that I raised from day old chicks in the house. Both Polish let the 10 week old pullets, who were bigger than the were, know who's boss, and life was good for a while.
Then Jamie, lavender Polish, went broody. She would randomly come out of the coop and run screaming at everyone else. My lap chicken snapped viciously at me when I went to get eggs. She lived in the nest box house for 23 days, which is separate from the coop. Then she marched her floofy headed self back into the coop and returned to her former Number 2 spot, next to Big Boss Bresse who never learned you have to be a friend to have a friend.
Unfortunately this was Easter weekend and I was so consumed with visiting grandchildren, cooking, cleaning etc. that I didn't realize what was happening to her. Monday after the family finally left I went out to clean out the poop shelf. I noticed Jamie was getting pecked on the head by more than 1 evil chicken and not running away. I put her between my feet until I finished cleaning. When I inspected her I realized she had a bloody raw spot on her head and another on her back.
I cleaned her up, gave her Nutridrench, and set her up in a large dog crate in the run. When I saw 2 evil chickens pecking her through the bars and her still just sitting there and taking it, I had to wrap the sides in wire cloth.
She was wobbly when she walked for a few days, leading me to believe the Evil Ones did some brain damage. It turns out Polish have unprotected skulls under those crests. I told my DH she needed her own run with my other Polish. As usual, it took 3 times longer than planned and she lived in that stupid dog crate far longer than I would have liked. I just never trusted the big chickens around her again.
She is now queen of her own 10 by 10 run, has a cool roost tree, and is about to have a brand new coop. My black Polish had to come join her even though she held her own with the big girls. Jamie bosses Martina around. She deserves it.
Chickens can be down right evil and savage to one another.
 
If only silkies were chickens.....

View attachment 4228625

Maybe she would like a Sasquatch….

90ED7CE9-7D96-43D7-BA09-0EDB7142EC68.jpeg
 
Maybe in the Spring 😉

Right now I am in flux so I am trying not to get too over burdened. As it is I now have that darn tootin cough in the main gang.

Sue and Whiskers are wheezing and coughing and I though I heard Daisy also.

So Sue and Whiskers had a couple CC’s of half strength Tylosin shoved down their gobs along with some Sulphatrim and Tylenol. I have Daisy some Tylosin and Tylenol (no sulphatrim).

I also mixed up a batch of Tylosin water for both Mr P and the main gang’s water. Everyone is now on a course of Tylosin.

:he

I could just kick myself for buying those two chicks. Meanwhile those two are thriving and motoring everywhere.

Update - coughing wheezing

Well Sue and Whiskers are still rattly and are coughing a bit but not as bad as last night.

I dosed those two again, Tylosin and Sulphatrim, then noted Dorothy coughing up a storm so same treatment for her.

Thankfully they seem to be eating and drinking as usual. I am bracing for everyone to be hacking by the weekend. But hoping the Tylosin will nip it in the bud, thankfully the babies are not hacking. Nor the two new Polish they are thriving now - thanks ladies for bringing the gift that keeps on giving….

I may have to order more Tylosin hopefully my Vet will be back soon, he flew out to a horseshow on Sunday.

Tomorrow I am also going to mix up a batch of the Tylosin and make their porridge with it. Make sure every is getting.
 

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