Weve fed Harrisons for about 18yrs.
Now we feed the Adult Lifetime course .The only thing we notice with ours is that over the years they seem to have got a little lighter in the plumage might be diet might be age don't know ??
.But one day a week they get AS 30 .They also get chop one day, Veg one day ,fruit one day besides their main feed .
About this annual thing !!! If you read some of my posts from Christmas I have a liitle saying you must have seen it
A Golden Lay around Boxing Day !
This year she was a bit later, about 5 weeks but were never far out
Tim at crimbo stripped her perfect chest to fluff overnight .
Tim is so predictable after all these years . At one time every time she stripped herself we used to run to the vets eg hormone injections ,implants and chewed flights removed
. Now we let her lay and let her sit em out . Having said that every year when they go for their annual mot in the spring to the vets she always withdraws a load of chewed up flights while she is doing her nails and beaks. That annual task is also the same, predictable.