Rooster lost half of upper beak

[NatJ]

Beak do not regrow back.

Beaks certainly do grow longer with time (that's how chickens can have overgrown beaks--especially common in chickens with crossbeak, but can happen to other chickens too.)

They grow from the base, and usually wear away at the tip.

Given that mechanism, why are you sure a beak cannot grow back?

 

[Poultrybonkers]

Beaks certainly do grow longer with time (that's how chickens can have overgrown beaks--especially common in chickens with crossbeak, but can happen to other chickens too.)

They grow from the base, and usually wear away at the tip.

Given that mechanism, why are you sure a beak cannot grow back?

If that was true birds from big farms that had them cut would grow back...they never do trimming just the tip it will anything more they do not grow back

 

[NatJ]

If that was true birds from big farms that had them cut would grow back...they never do trimming just the tip it will anything more they do not grow back

But the trimmed beaks DO continue to grow. Maybe not all the way back, but certainly some growth.

Any study I try to read about beak-trimming protocols, talks about the rate at which the beak continues to grow.

For example:
https://www.sciencedirect.com/science/article/pii/S0032579119402745
"Beak regrowth measures followed a predictable growth curve based on guard-plate length and energy setting. Birds trimmed using the shorter plate (25/23C) had shorter upper and lower beaks compared with those trimmed with the longer (27/23C) plate, as more beak tissue was exposed to the infrared energy (P < 0.0001; Table 1, Table 2). The greater the energy level used, the shorter the upper, and generally, lower beak length."

I would expect that beak regrowth is affected by how much damage is done to the tissue it grows from, but I don't have any specific evidence or source for that.

 

[Pastel the Rooster]

@Pastel The Rooster
Oreo is still doing great! His beak doesn’t seem to bother him at all. He's very excited when I feed him in the morning. Oreo is able to eat his normal food now and has no problems foraging.
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Yay!! I just saw the rest of this... GO Oreo!!