"The Dosage is the Poison" - I'd love to claim credit for that line, but hat tip to Paracelsus.
As others have offered, calcium toxicity is a progressive pathology, with components of time and quantity. Sort of like smoking. A couple of days for birds in their second month are unlikely to have any effect at all.
Moreover, except at very high doeses, over long periods of time, evidince will be most "clinical" in nature - the kinds of things you can see and measure when you taske a bird apart, but escape outward notice. The largest effect of extended duration excess dosage beginning as hatchlings for most birds is rather insidious - reduced feed efficiency and reduced growth, both rate and eventual weight.
In short, a bird that may "look fine", but never quite reaches its potential. That's what the studies consistently find, anyways.
But a few days in their second month is too brief an exposure to be likely to produce even clinical signs.
As others have offered, calcium toxicity is a progressive pathology, with components of time and quantity. Sort of like smoking. A couple of days for birds in their second month are unlikely to have any effect at all.
Moreover, except at very high doeses, over long periods of time, evidince will be most "clinical" in nature - the kinds of things you can see and measure when you taske a bird apart, but escape outward notice. The largest effect of extended duration excess dosage beginning as hatchlings for most birds is rather insidious - reduced feed efficiency and reduced growth, both rate and eventual weight.
In short, a bird that may "look fine", but never quite reaches its potential. That's what the studies consistently find, anyways.
But a few days in their second month is too brief an exposure to be likely to produce even clinical signs.
