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 Post subject: Isa Browns
PostPosted: Fri Jun 02, 2017 8:37 pm 
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Dapper Duck
Dapper Duck

Joined: Thu May 18, 2017 4:57 am
Posts: 31
Hi just wanting to know what the isa brown is a cross with,I was told that if you cross a Rhode Island rooster with a leghorn hen the result is a isa brown and the roosters chicks are always white,is this correct, appreciate any info thanks


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 Post subject: Re: Isa Browns
PostPosted: Fri Jun 02, 2017 9:48 pm 
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Old Mother Goose
Old Mother Goose
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Joined: Thu Apr 23, 2009 11:15 pm
Posts: 6275
Location: ACT area
ISA is a secret recipe. ISA is a brand name, not a breed ie an ISA male x ISA female will not breed true.

https://en.wikipedia.org/wiki/ISA_Brown

It is unlikely that a true ISA male will be publicly available as the sex linked colour ensures that they are culled at hatching.

There are other commercial hybrids. RIR x Leghorn is one. The name varies according to the brand. Most commercial hybrids will exhibit sex linked colours. As the males are of no commercial value they are culled.

But yes (as a general rule) red x white will give red females and white males. (what ever the breeds) however although we are familiar with the ISA brown, there is also an ISA white (not sure if it is available in Australia)


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