. Principles and practice of poultry culture . Poultry. APPLICATION OF PRINCIPLES OF BREEDING 527. Fig. 554. Rose-Combed Black Minorca cock- erel. Undeveloped form of Fig. 552 1 are never wholly absent in the best-bred stock. When serious, they cannot be got rid of by any quick method. In stock in which brassiness is bad no improvement of consequence can be made by mating with good white stock. Because brassiness may not appear in females, a breeder often sup- poses that it does not exist in them, and uses them with white males. Almost invariably the result is brassy males in the offspring. It
. Principles and practice of poultry culture . Poultry. APPLICATION OF PRINCIPLES OF BREEDING 527. Fig. 554. Rose-Combed Black Minorca cock- erel. Undeveloped form of Fig. 552 1 are never wholly absent in the best-bred stock. When serious, they cannot be got rid of by any quick method. In stock in which brassiness is bad no improvement of consequence can be made by mating with good white stock. Because brassiness may not appear in females, a breeder often sup- poses that it does not exist in them, and uses them with white males. Almost invariably the result is brassy males in the offspring. It is just as necessary to know that the sire of an apparently very white hen was free from brassiness as to know the breeding of the sire of a black-red female. In White Plymouth Rock males close inspection often shows a suggestion of black barring, especially in the hackle, and sometimes the tips of hackle feathers are plainly tipped with gray. The whitest plumage is secured only by long-continued selection of the whitest birds. In the present state of development of white breeds no one who breeds for exhibition can afford to waste time with birds in which brassiness is conspicuous. Those who breed white poultry for utility purposes need not be so careful, but males that are badly brassy should never be used. Mating black fowls. It is as rare for a black fowl to be dead black as it is for a white fowl to be pure white. Ordinary black fowls are a rusty black or a brown black, usually with white appearing as gray in various parts of the plumage, oftenest in the wing flights, in the concealed tail feathers, and in the undercolor. Even in good black fowls red is usually present, either visible or. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Robinson, John H. (John Henry), 1863-1935. Boston ; New York : Ginn
Size: 1515px × 1650px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorrobinson, bookcentury1900, bookdecade1910, bookyear1912
