Society Finch Background Colors

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Post  FinchG on Wed Mar 23, 2011 5:30 pm

SOCIETY FINCH BACKGROUND COLORS:
Chocolate, Chestnut and Fawn: Since the Café au Lait coloring is an integralCreamino characteristic, it is generally preferred to breed Creaminos in thedarkest possible background color. Due to their high levels of feather pig-ments, the Chocolate background has been the gold standard for breeding November/December, 2005 - Journal of the NFSS
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Creaminos. In general, the Chestnut and Fawn backgrounds are not nearly aspreferred for Creamino, the reason being that these two mutations havealready suffered a decrease in pigments. Creamino feather darkness isbelieved to be related to the background in which they are bred with ChocolateCreamino > Chestnut Creamino > Fawn Creamino, relative to overallCreamino pigmentation. I have not personally bred Creamino in a Chestnut orFawn background, preferring instead to heed what breeders have communi-cated with me about their Creamino breeding experiences. I keep Creaminosin either the Chocolateor Black Brown backgrounds.Black Browns, Mocha Browns & Red Browns: Commonly known as Euros,these birds are three-way hybrids between the Society Finch, the BlackHeaded Nun (Lonchura malacca) and the White Headed Nun (Lonchura maja)and in the case of the Red Brown, also possibly the Chestnut BreastedMannikin (Lonchura castaneothorax). (The term Euro was coined by the lateBob Rittman.) Euros have become all the rage in U.S. Society Finch circlesdue to recent importations from Europe, many via Canada.

The Black Brownbackground can also be used for breeding Creaminos, however some feel thatsince the Black Brown has such a high degree of eumelanin, it is not the bestbackground to use for Creaminos. A Creamino's coloring should always bewarm, and some feel that using Black Browns, particularly very dark almostebony ones, make for Creaminos which appear too cool in their color tones.While I do not keep or breed Mocha Browns and Red Browns and thereforecannot relay any personal experience, there is some evidence that dilutedback color isn't as important in breeding Creaminos in the more color intensiveEuros. With regard to using Black Browns for breeding Creaminos, I do haveone genuine German imported male Black Brown. He is not the best exampleof a Black Brown, exhibiting too much pigment reduction to be acceptable (inmy eyes) for the Black Brown phenotypic designation. I consider this cockbird to be 'Euro Influenced' since with his intermediate phenotype, he's obvi-ously not a Chocolate nor is he a top quality Black Brown. He is, however,noticeably darker than many of my Chocolate Society finches as well as beingbigger, bolder, more vertical and he has much more impressive belly scales. Idecided to use this cockbird to increase the size and improve the stance andbelly scaling in my Creaminos. I set him up with a Creamino/Gray hen proge-ny of Lehigh's, and I had the additional pleasure to discover that my ‘EuroInfluenced' cockbird is also split for Creamino and Gray. In their very firstclutch, they gave me a Grayino male. Yet another Creamino casino payout!Grayino is the combination of Gray and Creamino (see 'Grayino' sectionbelow). Recently, this same pair gave me a male Creamino chick. As soon ashe feathered out, this Creamino chick had decidedly darker pigment on hisback (for a fledgling) than any of the Creaminos I have bred to date. He isalso noticeably warm toned. After his first molt, belly scales are becomingmore apparent on his breast. Due to these very limited breeding results, Iremain unconvinced that Black Browns are not a satisfactory background colorfor breeding the Creamino mutation. Furthermore, if you desire bolderCreaminos with more prominent belly scales, the Black Brown background isprobably the way to go. Assuming you can find Black Browns, that is. Journal of the NFSS
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Post  FinchG on Wed Mar 23, 2011 5:48 pm

CREAMINO GENETICS:

Creamino is sex-linked recessive in both SocietyFinches and Shafttails. This means that a female is NEVER split for Creaminosince hens have only one Z (X) sex chromosome. She either has the muta-tion and you can see it, or she doesn't. Like all sex-linked mutations, aCreamino hen inherits her Creamino coloring from her father, not her mother.Males can be split for Creamino. A visual Creamino male must inherit oneCreamino Z (X) chromosome from each parent. In other words, the fathermust be at least split for Creamino and the mother must be a Creamino inorder to breed male Creamino offspring. To my knowledge, there is no way tovisually assess which male birds might be Creamino split. The only way toknow for sure is simply to breed them


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Post  FinchG on Wed Mar 23, 2011 6:13 pm

CREAMINO PAIRINGS:

When breeding Creaminos, its best that one parentshould be Chocolate (or interchangeably Black Brown). Table 2 presents pair-ings which will produce Creamino (or split) progeny:While Creamino x Creamino matings do produce the most Creamino chicks(all progeny will be Creamino) in the shortest period of time, this pairing doesnot allow the breeder to select one mate which will have a rich dark Chocolatephenotype. If you are breeding for quality and/or the show bench, Creaminox Creamino pairings are not recommended. To reiterate, the prized Creaminois one with the lowest possible levels of eumelanin (approaching zero) yetretains deep warm pinkish phaeomelanin hues.CREAMINO COMBINATIONS: Creamino severely affects and reduces allmelanin feather pigments and therefore doesn't really combine very well withmost other color mutations. Please see the 'Background Colors' discussionabove for an explanation of why this may be.


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