. Annual report of the North Carolina Agricultural Experiment Station. ylrdark eggs from the 6th to 8th). Shouldceils at different stages of incuba-anv grerm have died, it will be detected tion from 5 to 19 days. i 1 • i ,, -i o ,i by a red circle on the side ot the all such at once. I alwayskeep the tester on top of my ma-chine, so that when cooling theeggs at any time during the hatchat night I can examine a few andoften detect an egg that mightpossibly cause trouble later the hatch progresses, the eggsbecome more clouded each day,and by the 10th day the chick canbe distinct
. Annual report of the North Carolina Agricultural Experiment Station. ylrdark eggs from the 6th to 8th). Shouldceils at different stages of incuba-anv grerm have died, it will be detected tion from 5 to 19 days. i 1 • i ,, -i o ,i by a red circle on the side ot the all such at once. I alwayskeep the tester on top of my ma-chine, so that when cooling theeggs at any time during the hatchat night I can examine a few andoften detect an egg that mightpossibly cause trouble later the hatch progresses, the eggsbecome more clouded each day,and by the 10th day the chick canbe distinctly seen to move, thehead being discerned the germs that have died at thisstage will float about in the eggwhen moved, no veins being visi-ble. Take them out. By the 18thday the strong germs should bedark, and nothing discernable savethe air cell which allows the chickbreathing room and space to ex- ^^i^^i^Sm^^^tnc&te himself from the shell. (See Figs. 32 and 33 for cut of both hen and duck eggs, showing proper size for air cells at different stages. 250 N- c- AGRICULTURAL EXPERIMENT STATION. 1896. of incubation). At this time close your machine and await not be too anxious, and never undertake to help the little fel-lows out of the shell, for not only nine cases out of ten are fatal tothe chick, but you allow cold air to rush in upon and chill the otherchicks in the machine. Do not remove any chick until the hatchis finished. Moisture and Ventilation.—The subject of moisture and ventilationare two very complex ones. Many operators declare no moisture isneeded, while others supply it several times during the hatch. Morefailures are due to the wrong application of the moisture than anyother. Just how much or how little to use has simply to be learnedby actual experience. The condition of the outside atmosphere mustalways be considered as regards moisture and humidity. In otherwords, if the weather outside is damp and full of moisture, so thatthe cellar
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectagriculture, bookyear
