Download FUNDAMENTALS. OF COLOR GENETICS IN CANARIES. Reproduction by Octavio Perez-Beato PDF

By Octavio Perez-Beato

To go into the interesting grounds of colour canary breeding potential to appreciate what to do and whilst to do it. easy options of genetics are essential to rather achieve this ancestral pastime. The administration of mating, the id of genetic formulation to address breeding tactics, and at last get complete keep watch over of the consequences to degree good fortune and error are all useful as well.

This is precisely what this booklet is all approximately: supplying the information in easy and enterprise steps and giving the reader breeding strategies in a theoretical foundation to accomplish smooth colour canary breeding, together with the newest mutations.

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Additional resources for FUNDAMENTALS. OF COLOR GENETICS IN CANARIES. Reproduction and Control

Sample text

On the back, the lipochromic ground color was remarkable, different from the common Isabelle. In the Brown canary, this new mutation became particularly different, in such a way that provided the name to this new mutation in the canary. The ground lipochrome color is delicately blended with the pheomelanin, just like as it is in a pastel painting, therefore, the name pastel. The lines or streaks on the back and flanks are almost imperceptible, and the canary shows that same blending of lipochrome and melanin, all over the plumage.

This is the result of environmental factors, conclusively nutrition quality. From a genetic basis the parents only provide the offspring with genes responsible for the proper assimilation of certain pigments, the transformation of those plant pig24 Fundamentals of Color Genetics in Canaries ments into animal pigments, and finally the onset of these in the feather structures. If a bird is not properly supplied with a diet rich in beta-carotene to be transformed into red lipochrome, but is supplied with xanthophylls, then yellow lipochrome will be deposited in its feathers.

A portion of this formula has been previously explained in the chapter dealing with white canaries and in the chapter about yellow canaries, all these genes are also common in the red factor canary. The red factor canary genetically needs to bear the K gene to normally assimilate the carotenoid substances, plus the G gene in order to transform these substances into yellow pigments. If the red factor canary would bear the recessive g gene in heterozygosis condition, a proportion of the brood would be homozygote for that allele, and this is only possible in theory, since the recessive german white canary has never been obtained; it is only and exclusively a theoretical possibility, as has been explained somewhere before in this book.

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