Feeding Experiment on baby chicks.

[Cyprus]

No, these are not true statements.
White minorcas weren't created yet and this would reduce egg production.
Minorcas eat more, are much heavier and lay less.
Minorcas don't have yellow feet.

If you read the article you might notice it stated the english outcrossed them because they didn't like the small body size. It wasn't about egg production, it was about size.

 

[Mitsos Lamprogiorgos]

Hundreds of years ago and yellow is recessive. White plumage and yellow legs can be bred easily.
I still believe that Minorcas were involved in the original crossing.

If Leghorns weren't outbred then explain to me what a hybrid is. If they were always bred from Leghorn blood, then they would still be Leghorns and not hybrids.

The four lines have different genes.
The terminal crosses produce better, consume less and are smaller than the original leghorns.
They also burn out faster because they lay through winters and they need more balanced feed.

 

[Cyprus]

So you're in Europe. Your strains are almost certainly not the same as those in the USA.

 

[Cyprus]

The four lines have different genes.
The terminal crosses produce better, consume less and are smaller than the original leghorns.
They also burn out faster because they lay through winters and they need more balanced feed.

Makes sense, but having different lines does not make them a hybrid.
Show breeders of various breeds get their birds from varying lines or vreate their own. That doesn't make their breeds hybrids. Lines are basically pedigrees.

I have had leghorns for 3 years. My 3yr old hens still lay an egg a day and I got them from a production hatchery line. Hy-Line.

 

[Mitsos Lamprogiorgos]

Hundreds of years ago and yellow is recessive. White plumage and yellow legs can be bred easily.
I still believe that Minorcas were involved in the original crossing.

If Leghorns weren't outbred then explain to me what a hybrid is. If they were always bred from Leghorn blood, then they would still be Leghorns and not hybrids.

White leghorns are OUTbred. Not CROSSbred.
The purpose is to make them better money makers.
They are the most capitalistic animal in the world.

Pure breeds can be linebred or outbred.
The purpose is a balance between production and responsee to the features of the breed.

 

[Mitsos Lamprogiorgos]

So you're in Europe. Your strains are almost certainly not the same as those in the USA.

I mainly use the strains of hy-line US and of dominant CZ.
They are available in Greece and so in many other countries.

 

[Cyprus]

@The Moonshiner

 

[Cyprus]

I mainly use the strains of hy-line US and of dominant CZ.
They are available in Greece and so in many other countries.

What is dominant CZ? You have US Hy-Line in Greece?

 

[Mitsos Lamprogiorgos]

If you read the article you might notice it stated the english outcrossed them because they didn't like the small body size. It wasn't about egg production, it was about size.

English leghorns have exactly the same size as the heritage ones of the other places.
Only the tails differ because standards want to set different criteria.

 

[Mitsos Lamprogiorgos]

What is dominant CZ? You have US Hy-Line in Greece?

I use hy-line w-80 and dominant leghorn d229.
http://dominant-cz.cz/produkt/dominant-leghorn-d-229-2/?lang=en
https://www.hyline.com/aspx/products/productinformation.aspx