Some features of the Domestic Pigeon Feather structure
DOI:
https://doi.org/10.31548/poultry2020.01.006Keywords:
Domestic Pigeon, cover feathers, main flying feathers, auxiliary flying feathers, calamus, stem of a feather, vane of a featherAbstract
Feathers of birds of different species have not been studied sufficiently. This article describes the peculiarities of the feather structure of different parts of the body (pterygium) of one of the common birds in Ukraine – Domestic Pigeon. The pigeon's feather cover is combined because its fan is formed by branches of different types – contour, false contour, feather and mixed. The contour branches are rigid, their beards clamp together with the help of hooks and thorns and form a solid fan. The false contour branches are also rigid, but their beards are not interconnected because they do not have hooks. The fan, or part of it, formed by the false contour branches is incomplete. Down branches are soft, easy to bend in different directions. The fan or part there of formed by such branches is voluminous. The initial part of the combined branches of the fan of the feathers is usually contour, and the end may be down or false contour. It has been established that cover and flying feathers the Domestic Pigeon are capable of losing beards that turn into fine powder. This process occurs both with a certain pattern and in a chaotic manner. In terms of absolute and relative parameters, as well as functional purpose, flying feathers are divided into two types – basic and ancillary or supportive. Supportive feathers dorsally and ventrally cover the basic flying feather and prevent it from shifting in any direction. Support feathers have a relatively long calamus, which is deep within the skin. The relative length of the calamus of the supporting feathers is close to that of the calamus of the main flying feathers. The calamus of the cover feathers is much (both absolutely and relatively) smaller. The size of the supportive feathers can be divided into larger, medium and smaller feathers. All three varieties of support feathers are arranged one after the other. More support feathers cover the main flying feathers, average supports more, and less supports average.References
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