- Apr 2, 2010
- 754
- 14
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Can someone please tell me what ISO stands for?
We have hatched each year from eggs from a local breedern but this year we are going to buy chicks. When I checked at our local feed store I was told they stock Sussex, RIR and ISO. What on earth are ISO?

We have hatched each year from eggs from a local breedern but this year we are going to buy chicks. When I checked at our local feed store I was told they stock Sussex, RIR and ISO. What on earth are ISO?