. Poultry production. Poultry. THE BREEDING OF CHICKENS 121 While Felcli's sj'stem is commonly spoken of as line breed- ing, it is only with reference to the individuals shown in the outside lines of l-'igure 53 that true line breeding takes jjlaee. FiQ. 53 CNPRATIOMS. C »• Breeding chart, after Felch and Pierce. (Courtesy of Breeders' Gazette, Chicago.) The mating of the two extreme lines to produce the groups at I and M averaging half the blood of the sire A and half the blood of the dam B simply represents other methods of getting the results of the first cross, or of a brotlier and sister.
. Poultry production. Poultry. THE BREEDING OF CHICKENS 121 While Felcli's sj'stem is commonly spoken of as line breed- ing, it is only with reference to the individuals shown in the outside lines of l-'igure 53 that true line breeding takes jjlaee. FiQ. 53 CNPRATIOMS. C »• Breeding chart, after Felch and Pierce. (Courtesy of Breeders' Gazette, Chicago.) The mating of the two extreme lines to produce the groups at I and M averaging half the blood of the sire A and half the blood of the dam B simply represents other methods of getting the results of the first cross, or of a brotlier and sister. 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 Lippincott, William Adams, 1882-1931; Card, Leslie Ellsworth, 1893-. Philadelphia, Lea & Febiger
Size: 1490px × 1676px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjectpoultry, bookyear1921
