Poultry culture sanitation and hygiene . Fig. 189.—A broken egg showing Fig. 190.—An egg the tenth day ofa, heavy growth of mold: u, The mold. incubation: a, The air-cell. and hasten its spoiling. This is one source of smeared should be used in packing eggs, and smeared eggs should

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Keywords: ., bookcentury1900, bookdecade1920, booksubjectpoultry, bookyear1921