commercial brown layers VS australorp black VS light sussex

[Mitsos Lamprogiorgos]

It's hard for us to accept your 'truth' when we don't really know the details of your vet friends 'experiment'.

I compared a sussex and a silver campine with a brown layer from the world's biggest company...
When the food is layer feed the hybrid becomes the queen.
When the food is low density seeds, the heritage overlays the hybrid by faaaaar.

 

[aart]

I compared a sussex and a silver campine with a brown layer from the world's biggest company...
When the food is layer feed the hybrid becomes the queen.
When the food is low density seeds, the heritage overlays the hybrid by faaaaar.

So how many birds in your 'study'?
How long did the 'experiment' go on?

 

[Mitsos Lamprogiorgos]

So how many birds in your 'study'?
How long did the 'experiment' go on?

80 days
6 brown layers
3 sussex light
3 silver campine braekel

 

[aart]

Birds were all the same age...how old??
Did you test both feeds on all birds and for what duration?

 

[Mitsos Lamprogiorgos]

I just had the official answer in my e-mail to the company.
Hybrids need much more calcium and vitamin D than the heritage layers because their bones are of a decreased size. They made them so small so their bones can't "sacrifice" calcium to create the egg shell.

 

[Mitsos Lamprogiorgos]

Birds were all the same age...how old??
Did you test both feeds on all birds and for what duration?

Exactly the same age. I tested both the feeds. They started to lay almost the same day, only the sussex about 10 days later.