I understand and totally agree with preserving Heritage and pure Landrace breeds (and not only in poultry). My Icelandics are pure – I have hatched eggs from purebred hens that have been covered by purebred Cockerels. (There are no other breed cockerels here). And I will continue to keep "purebred" birds)
That being said, I also believe that a Landrace or Heritage breed can be used to introduce certain characteristics or traits into another breed that it may lack. This does NOT in any way make the Landrace or Heritage breed less pure, since the offspring of the crosses are not sold; they are not bred back to the Icelandics; they are only used as hybrids to introduce qualities into an existing flock of a different breed that lacks them. This is a recognized method of producing new breeds; those that breed true over several generations are considered “pure’ breeds.
If an Icelandic cock bird has covered a bird of another breed, it does not make him less of an Icelandic, nor would a hen being covered by another breed be less of an Icelandic. However, one would have to isolate her for a period of time and then introduce her back to the Icelandic cock bird to ensure that eggs hatched from her were pure.
There are instances when someone might exclude single combed birds from their breeding program because of the weather conditions they are or may be facing in order to reduce frostbite. Or they may desire feathered legs or not, and breed accordingly. By doing this we ARE interfering with natural selection and altering the strain each of us as individuals owns; in search for the bird that fits “our” particular need or desires.
So, anyone breeding birds is altering that breed’s genetics whenever they “pen” selections together. ONLY by allowing birds to free range and letting them choose their own breeding mate will they remain the Landrace that they started out as (talking here about only allowing ONE breed to roam together).
That being said, I also believe that a Landrace or Heritage breed can be used to introduce certain characteristics or traits into another breed that it may lack. This does NOT in any way make the Landrace or Heritage breed less pure, since the offspring of the crosses are not sold; they are not bred back to the Icelandics; they are only used as hybrids to introduce qualities into an existing flock of a different breed that lacks them. This is a recognized method of producing new breeds; those that breed true over several generations are considered “pure’ breeds.
If an Icelandic cock bird has covered a bird of another breed, it does not make him less of an Icelandic, nor would a hen being covered by another breed be less of an Icelandic. However, one would have to isolate her for a period of time and then introduce her back to the Icelandic cock bird to ensure that eggs hatched from her were pure.
There are instances when someone might exclude single combed birds from their breeding program because of the weather conditions they are or may be facing in order to reduce frostbite. Or they may desire feathered legs or not, and breed accordingly. By doing this we ARE interfering with natural selection and altering the strain each of us as individuals owns; in search for the bird that fits “our” particular need or desires.
So, anyone breeding birds is altering that breed’s genetics whenever they “pen” selections together. ONLY by allowing birds to free range and letting them choose their own breeding mate will they remain the Landrace that they started out as (talking here about only allowing ONE breed to roam together).