- May 19, 2009
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According to that 1999 history of EO's on the basque webite (quoting), '
"Specific production as a result of the data products
generated two varieties:"
Color variety -- Principal function
Gorria .. .........mixed (eggs and meat)
Lepasoila... .....meat
Marraduna ..... eggs
-----------------------------------------------
History of the Government project: http://euskaloiloa.blogspot.com/search/ … lina-vasca
-----------------------------------
1. Gorria is the base color for the breed. It is Black-Tailed Red like the New Hampshire. Then the plumage is tweaked to get the other 4 varieties in the breed.
2. Beltza is Gorria taken to the extreme. If one keeps adding Ml and rb to Black-Tailed Red, one gets the deep Rhode Island Red color. Keep adding ML and rb and eventually the whole bird is black(Beltza). ( Ml is Melonic; rb is recessive black)
3. Marraduna, is Gorria with barring (from the barring gene, not autosomal barring). Eoalak says a side effect is the chestnut hues are brightened. I think that's why I thought I was looking at a barred Black-Tailed Buff.... and not a barred Black-Tailed Red. That also explains the Mh in the Marraduna when I was expecting just Co/Co( to lighten and even out the buff hues).
4. Lepasoila : A Naked-Neck Gorria.
5. Zilarra : Take Gorria...change the red and brown areas to white and leave the black areas the same, viola!, Zilarra.
( same visual effect as Light Sussex)
6. Llodiana , at present, is not of the breed Esukal Oiloa.( sebastapol says Llodiana is a part of Euskal Oiloa, so maybe I am wrong?) It is a separate breed of Basque chicken. It is a barred eWh bird based on Gorria. The hen exists at the extreme lght end of the buff spectrum..very light buff with little, if any, black on the hen. ( a buff hen exhibiting the Co gene to the extent that black is almost or completely removed from the hen)
The cock looks like a Black-Tailed Red, except his stomach feathering is much lighter buff color. ( I was real disappointed to learn Llodian was not EO because I wanted to breed this color in EO's. But I will also have lot of fun breeding the other EO colors instead.
------------------------------------------
"The action of the sex linked barring gene
on Spanish chickens with gold plumage"
J. L. CAMPO F. OROZCO
Departamento de Genitica Cuantitativa y Mejora Animal
Instituto Nacional de Investigaciones Agrarias
Carretera de La Coruna Km. 7, Madrid (Espana)
Here is the English version of the study:
http://www.springerlink.com/content/d24973463n2214h1/fulltext.pdf Campo and Orozco worked together on study of genetics and preservation of Spanish Fowl. Campo was especially interested in the Basque fowl. From what I can gather, one of the Basque fowl was a very a rare color . The only other recorded poultry color which was the same was the Gold Barred Rock. Punnett and Pease wrote a paper on GBR in 1928. Excellent reading. http://www.ias.ac.in/jarch/jgenet/19/337.pdf Campo stated in his work that Euskal Oiloa carried Dominant White. From what I can gather from the P&P 1928 study, the GBR is Barred Buff Columbian built on a Dominant White base. I don't know if the Illiana (sp?) variety of Euskal Oiloa is the same as the bird Campo described. I need to find out from Lys if the persons who brought them back in Basqueland has revealed their genome.
"Specific production as a result of the data products
generated two varieties:"
Color variety -- Principal function
Gorria .. .........mixed (eggs and meat)
Lepasoila... .....meat
Marraduna ..... eggs
-----------------------------------------------
History of the Government project: http://euskaloiloa.blogspot.com/search/ … lina-vasca
-----------------------------------
1. Gorria is the base color for the breed. It is Black-Tailed Red like the New Hampshire. Then the plumage is tweaked to get the other 4 varieties in the breed.
2. Beltza is Gorria taken to the extreme. If one keeps adding Ml and rb to Black-Tailed Red, one gets the deep Rhode Island Red color. Keep adding ML and rb and eventually the whole bird is black(Beltza). ( Ml is Melonic; rb is recessive black)
3. Marraduna, is Gorria with barring (from the barring gene, not autosomal barring). Eoalak says a side effect is the chestnut hues are brightened. I think that's why I thought I was looking at a barred Black-Tailed Buff.... and not a barred Black-Tailed Red. That also explains the Mh in the Marraduna when I was expecting just Co/Co( to lighten and even out the buff hues).
4. Lepasoila : A Naked-Neck Gorria.
5. Zilarra : Take Gorria...change the red and brown areas to white and leave the black areas the same, viola!, Zilarra.
( same visual effect as Light Sussex)
6. Llodiana , at present, is not of the breed Esukal Oiloa.( sebastapol says Llodiana is a part of Euskal Oiloa, so maybe I am wrong?) It is a separate breed of Basque chicken. It is a barred eWh bird based on Gorria. The hen exists at the extreme lght end of the buff spectrum..very light buff with little, if any, black on the hen. ( a buff hen exhibiting the Co gene to the extent that black is almost or completely removed from the hen)
The cock looks like a Black-Tailed Red, except his stomach feathering is much lighter buff color. ( I was real disappointed to learn Llodian was not EO because I wanted to breed this color in EO's. But I will also have lot of fun breeding the other EO colors instead.
------------------------------------------
"The action of the sex linked barring gene
on Spanish chickens with gold plumage"
J. L. CAMPO F. OROZCO
Departamento de Genitica Cuantitativa y Mejora Animal
Instituto Nacional de Investigaciones Agrarias
Carretera de La Coruna Km. 7, Madrid (Espana)
Here is the English version of the study:
http://www.springerlink.com/content/d24973463n2214h1/fulltext.pdf Campo and Orozco worked together on study of genetics and preservation of Spanish Fowl. Campo was especially interested in the Basque fowl. From what I can gather, one of the Basque fowl was a very a rare color . The only other recorded poultry color which was the same was the Gold Barred Rock. Punnett and Pease wrote a paper on GBR in 1928. Excellent reading. http://www.ias.ac.in/jarch/jgenet/19/337.pdf Campo stated in his work that Euskal Oiloa carried Dominant White. From what I can gather from the P&P 1928 study, the GBR is Barred Buff Columbian built on a Dominant White base. I don't know if the Illiana (sp?) variety of Euskal Oiloa is the same as the bird Campo described. I need to find out from Lys if the persons who brought them back in Basqueland has revealed their genome.
)
