Post by classact on Apr 27, 2011 15:35:41 GMT -8
Correct Pattern for a Biewer
BANDED ... BELTED ... STRIPED
By Nancy Anderson
All rights reserved. Violators will be prosecuted.
I doubt if I'm the right person to comment on the perceived wisdom currently being traded on the genetics of the Banded/Belted/Striped markings or more correctly the mis-markings. That withstanding our current beliefs on the inheritance of 'marking' are poorly founded and have been for some time now and possibly more generations than we care to admit. There is no other explanation for the failure of many dedicated and competent breeders to eliminate 'mis-markings' and fix the 'proper markings' other than the lack of knowledge to do so.
Most breeders will balk at the fact that Biewer Yorkies are white animals with COLOURED markings and the ability to keep the markings as they should be are in our hands and our hands alone. Each and every Biewer Yorkie breeder has the responsibility of the breed's welfare and survival in pattern terms within their very hands. Breeders discard dogs with bad temperaments, bad bites, poor confirmation, unthrifty dogs and those that are poor breeders but yet they will continually use a dog that is clearly mis-marked and not of breed standard in coat pattern. The concept is a relatively simple one but the outcome relies on our ability and determination to accept and breed to the concept. Breeders breeding for pets only have just as much responsibility to the breed as those who are breeding for Quality and Show.
Selection for Belted/Banded/Striped pattern should be a Biewer breeders number one concern. The most desired Belted/Banded/Striped pattern for the breed varies little from one breed registry to another. The genetics for the desired Belted/Banded/Striped pattern, and the mis-marking that interferes with that pattern, are constant throughout the breed. Assistance with pattern selection is not readily available from any other source other than from educating the breeder and hoping that the breeder makes wise decision on what to use for breeding stock. The only other avenue is during the dog shows is to NOT place a dog with a mis-marked pattern. Thus every Biewer Yorkie breed registry should offer its breeders guidelines on pattern selection. Further, mistakes in pattern selection can propagate less desirable genetic combinations for pattern inheritance. The resulting decrease in the frequency of desirable genetic combinations can make it more difficult for every Biewer Yorkie breeder to produce well marked animals. Thus every Biewer Yorkie registry should also have well defined pattern policies. Policies that are understood by everyone involved and enforced during dog shows.
Here arises a major problem for Biewer Yorkie breed registries. The rules of eligibility and other registration practices of a Biewer Yorkie must be designed to be consistent with the inheritance of the relevant patterns for the breed being the Banded/Belted/Striped pattern for the Biewer Yorkie. Consistent with the inheritance of both the desired pattern—the belt—and the undesired pattern complications—the mis-marking. The genetics involved sets the absolute guidelines, and given that the objective is to consistently breed animals with a particular pattern, the breeders and their registry must function within those genetic guidelines.
The rules of any registry will be consistent with the genetics involved only to the extent that the relevant inheritance, and the importance of that inheritance, is understood by the persons responsible for the rules. Most Biewer Yorkie breeders and breed registries, however, have failed to realize the limitations that the genetics of pattern inheritance place on consistently breeding well marked Biewer Yorkies. The problem is two fold. First, useful interpretation of the relevant information available on pattern inheritance requires a balance of genetics, animal husbandry, and purebred 'politics'. Such interdisciplinary interpretations have not been readily available and/or rejected by those who do not have the correctly marked Biewer within their breeding programs. And second, many Biewer Yorkie breeders, and thus indirectly their breed registries, actively resist any attempt to revise established registry practices in line with relevant genetics. Nevertheless, it is imperative that all pattern registration policies of all Biewer Yorkie breed registries be consistent with both the genetics of pattern inheritance in the breed and the realities of correctly marked *"Banded/Belted/Striped" production for the future survival of the pattern.
A dedicated Biewer Yorkie breed registry should thus actively pursue belting/banded/striped and mis-marked belting/banded/striped patterns on three fronts:
A. Interpretation of relevant genetic information.
B. Research into the genetics of belting and belted mis-marking.
C. Review of registry regulations.
Belting/Banded/Striped are genes within the dog that are set according to the genes they inherit from each parent. The Belting/Banded/Striped genes are recessive in nature making it necessary for 2 recessive genes of like kind be required to produce the desired pattern. The Biewer Yorkie bloodline was founded on the BANDED pattern. Where the mis-marked Piebald pattern has come into play is anybody's guess. If breeders do not take heed now and stop breeding the mis-marked Piebald Biewer then the true look of the Biewer will be lost forever. If breed registries do not stop placing the mis-marked dogs and rewarding the breeder for the breeding of them the true look of the Biewer will never be re-established.
It is unrealistic to lay the full blame at the fault of the registries totally as it is up to each individual breed of Biewer Yorkie to NOT use a mis-marked Biewer for breeding.
The Belted/Banded/Striped gene is recessive in nature and does breed true 99.9% of the time so there is no excuse for accepting anything less for Showing or Breeding.
It is up to every Biewer Breeder to preserve the breed and the look that makes our Biewer what they started out being and what they should be for generations to come.
Accept NO IMITATIONS!
BANDED ... BELTED ... STRIPED
By Nancy Anderson
All rights reserved. Violators will be prosecuted.
I doubt if I'm the right person to comment on the perceived wisdom currently being traded on the genetics of the Banded/Belted/Striped markings or more correctly the mis-markings. That withstanding our current beliefs on the inheritance of 'marking' are poorly founded and have been for some time now and possibly more generations than we care to admit. There is no other explanation for the failure of many dedicated and competent breeders to eliminate 'mis-markings' and fix the 'proper markings' other than the lack of knowledge to do so.
Most breeders will balk at the fact that Biewer Yorkies are white animals with COLOURED markings and the ability to keep the markings as they should be are in our hands and our hands alone. Each and every Biewer Yorkie breeder has the responsibility of the breed's welfare and survival in pattern terms within their very hands. Breeders discard dogs with bad temperaments, bad bites, poor confirmation, unthrifty dogs and those that are poor breeders but yet they will continually use a dog that is clearly mis-marked and not of breed standard in coat pattern. The concept is a relatively simple one but the outcome relies on our ability and determination to accept and breed to the concept. Breeders breeding for pets only have just as much responsibility to the breed as those who are breeding for Quality and Show.
Selection for Belted/Banded/Striped pattern should be a Biewer breeders number one concern. The most desired Belted/Banded/Striped pattern for the breed varies little from one breed registry to another. The genetics for the desired Belted/Banded/Striped pattern, and the mis-marking that interferes with that pattern, are constant throughout the breed. Assistance with pattern selection is not readily available from any other source other than from educating the breeder and hoping that the breeder makes wise decision on what to use for breeding stock. The only other avenue is during the dog shows is to NOT place a dog with a mis-marked pattern. Thus every Biewer Yorkie breed registry should offer its breeders guidelines on pattern selection. Further, mistakes in pattern selection can propagate less desirable genetic combinations for pattern inheritance. The resulting decrease in the frequency of desirable genetic combinations can make it more difficult for every Biewer Yorkie breeder to produce well marked animals. Thus every Biewer Yorkie registry should also have well defined pattern policies. Policies that are understood by everyone involved and enforced during dog shows.
Here arises a major problem for Biewer Yorkie breed registries. The rules of eligibility and other registration practices of a Biewer Yorkie must be designed to be consistent with the inheritance of the relevant patterns for the breed being the Banded/Belted/Striped pattern for the Biewer Yorkie. Consistent with the inheritance of both the desired pattern—the belt—and the undesired pattern complications—the mis-marking. The genetics involved sets the absolute guidelines, and given that the objective is to consistently breed animals with a particular pattern, the breeders and their registry must function within those genetic guidelines.
The rules of any registry will be consistent with the genetics involved only to the extent that the relevant inheritance, and the importance of that inheritance, is understood by the persons responsible for the rules. Most Biewer Yorkie breeders and breed registries, however, have failed to realize the limitations that the genetics of pattern inheritance place on consistently breeding well marked Biewer Yorkies. The problem is two fold. First, useful interpretation of the relevant information available on pattern inheritance requires a balance of genetics, animal husbandry, and purebred 'politics'. Such interdisciplinary interpretations have not been readily available and/or rejected by those who do not have the correctly marked Biewer within their breeding programs. And second, many Biewer Yorkie breeders, and thus indirectly their breed registries, actively resist any attempt to revise established registry practices in line with relevant genetics. Nevertheless, it is imperative that all pattern registration policies of all Biewer Yorkie breed registries be consistent with both the genetics of pattern inheritance in the breed and the realities of correctly marked *"Banded/Belted/Striped" production for the future survival of the pattern.
A dedicated Biewer Yorkie breed registry should thus actively pursue belting/banded/striped and mis-marked belting/banded/striped patterns on three fronts:
A. Interpretation of relevant genetic information.
B. Research into the genetics of belting and belted mis-marking.
C. Review of registry regulations.
Belting/Banded/Striped are genes within the dog that are set according to the genes they inherit from each parent. The Belting/Banded/Striped genes are recessive in nature making it necessary for 2 recessive genes of like kind be required to produce the desired pattern. The Biewer Yorkie bloodline was founded on the BANDED pattern. Where the mis-marked Piebald pattern has come into play is anybody's guess. If breeders do not take heed now and stop breeding the mis-marked Piebald Biewer then the true look of the Biewer will be lost forever. If breed registries do not stop placing the mis-marked dogs and rewarding the breeder for the breeding of them the true look of the Biewer will never be re-established.
It is unrealistic to lay the full blame at the fault of the registries totally as it is up to each individual breed of Biewer Yorkie to NOT use a mis-marked Biewer for breeding.
The Belted/Banded/Striped gene is recessive in nature and does breed true 99.9% of the time so there is no excuse for accepting anything less for Showing or Breeding.
It is up to every Biewer Breeder to preserve the breed and the look that makes our Biewer what they started out being and what they should be for generations to come.
Accept NO IMITATIONS!