All I am pointing out is that turkey feed will not harm chickens. Turkey feed at 28% to 30% is starter feed meant for poults and is not for adult turkeys. Turkey grower feed is normally 24% protein and adult maintenance feeds are typically 15% to 16% protein. I do not recommend feeding turkey feed to chickens but it will not harm them.Sorry, other than the mention of UC Davis... I didn't see any actual scientific studies on your link. And ALL the ones I have seen state calcium levels higher than 3% would cause the kidney issues if fed long term. Your source says 1.2% Also, one thing.
As far as I can tell, that author has NO DVM or other correlating experience to make them qualified to write the article. Oh but wait, there's more... The author is selling their OWN feed!
"The UC Davis cockatiel flock (all normal greys) have been fed nothing but Roudybush crumbles and water since 1981. From 1981 to 1986 they were fed nothing but breeder formula."
For me I'm sticking with my original information despite reviewing yours. But thank you tons for sharing! I'm totally open to leaning new things and changing it up when I feel the need.
ETA: I do recognize that it most often occurs in birds that are predisposed. But how do you know before it's too late? (okay, reversal *may* occur). And that paper says..
"Don't feed your birds a deficient diet in order to protect the few birds that might have an underlying kidney malfunction."
Nobody is talking about feeding a deficient diet here.![]()
I suspect that the calcium levels are more important depending on where you live. If you live in an area that has high ground levels of calcium ( lots of limestone), you may want to be more careful about calcium levels than if you live in an area where the soil is not high in calcium.
I have not seen any evidence that using layer feed has had any ill effects on any of my adult male poultry. I do feed all of my adult poultry layer feed and the hens still regularly help themselves to the free choice oyster shell.