. Poultry production. Poultry. THE BREEDING OF CHICKENS 159 re\'elatioiis ccmcerniiig the inlieritauce of fecundity. As a stallion bred in a speed-producing line, but not himself a great performer, can only be discovered to be a sire of great speed by the performance of his get, so the actual breed- ing ability of a male bird, with reference to fecundity, can be discovered only through the i)erf()rmance of his daughters at the nest. Under present practice, it is proljably safe to assert that in nine cases out of ten, by the time the records Fig. 77. ^. C ^\^ Leghorn, C>regoija, with a five-
. Poultry production. Poultry. THE BREEDING OF CHICKENS 159 re\'elatioiis ccmcerniiig the inlieritauce of fecundity. As a stallion bred in a speed-producing line, but not himself a great performer, can only be discovered to be a sire of great speed by the performance of his get, so the actual breed- ing ability of a male bird, with reference to fecundity, can be discovered only through the i)erf()rmance of his daughters at the nest. Under present practice, it is proljably safe to assert that in nine cases out of ten, by the time the records Fig. 77. ^. C ^\^ Leghorn, C>regoija, with a five-,\'ear record of 9S7 eggs. She rounded out her 1000 eggs early in lier sixth year. (Courtesy of Oregon Agricultural Experiment Station.) of the daughters of an unusual breeder are a%'ailable and it is discovered that he has a whole bevy of high-producing daughters, he is discarded and lost track of, if not actually destroyed. As long as the sire of prepotent sons and high- producing daughters can beget a few dozen chicks a year, he is a profitable investment to any breeder and of great value to his breed. To hope for stability in breeding for production there must be time to judge a male's breeding powers by the performance of his offspring, so that he may. 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
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectpoultry, bookyear1921
