. Commercial poultry raising;. Poultry. 102 COMMERCIAL POULTRY RAISING tained by flocks, where the poultryman does not wish to trap nest his birds. Let us assume the breeding pens consist of units of from twenty to a hundred fowls, and that they have been mated with the view to some definite purpose. As the eggs are col- lected from these pens let the collector mark the number of the pen on the receptacle in which the eggs are gathered; later, when the eggs are selected for incubation this number is marked on the egg shells and they are placed in the incubator or under hens. A card is made out
. Commercial poultry raising;. Poultry. 102 COMMERCIAL POULTRY RAISING tained by flocks, where the poultryman does not wish to trap nest his birds. Let us assume the breeding pens consist of units of from twenty to a hundred fowls, and that they have been mated with the view to some definite purpose. As the eggs are col- lected from these pens let the collector mark the number of the pen on the receptacle in which the eggs are gathered; later, when the eggs are selected for incubation this number is marked on the egg shells and they are placed in the incubator or under hens. A card is made out for each hatching, and on it is marked the date the eggs are set. When the eggs are tested for fertil- ity a report is made on the card of the number of clear eggs removed, and to what pen numbers they belong. The same idea is carried out at hatching time—the un- hatched eggs are counted and credited to their re- spective pens. Marking Chicks.—This data will keep a pretty good line on the fertility of the different pens, and the hatchability of their eggs. If the operator wishes to go further, and follow the progress of the chicks in the brooder, he can mark them when they are removed from the incubator, by leg bands, such as are used for pigeons. See Fig. 65. In keeping track of the eggs in the incubator they are given ordinary treatment up to the eigh- teenth day, or when the eggs are turned for last time. Then, by. Fig. 68. {Courtesy Kansas Experiment Station) -Wing band in place on a mature 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 Roberts, Howard Armstrong, 1885- [from old catalog]. Philadelphia, D. McKay
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectpoultry, bookyear1920
