. Elementary principles of agriculture; a text book for the common schools. t scraps, etc. Forconfined fowls, cottonseed meal, milk, or the tankagefrom the slaughter-house, make an excellent substitutefor the animal feeds. Any of the grains may be fed topoultry. Green feed is very desirable for laying birds require grit to assist in the grinding of the feedin the gizzard. Coarse, sharp sand, crushed stone, or Farm Poultry 227 cinders, etc., are desirable forms of grit. Crushed oyster-shells, or bones, supply the material for making thebones in young growing chickens and the egg-shells
. Elementary principles of agriculture; a text book for the common schools. t scraps, etc. Forconfined fowls, cottonseed meal, milk, or the tankagefrom the slaughter-house, make an excellent substitutefor the animal feeds. Any of the grains may be fed topoultry. Green feed is very desirable for laying birds require grit to assist in the grinding of the feedin the gizzard. Coarse, sharp sand, crushed stone, or Farm Poultry 227 cinders, etc., are desirable forms of grit. Crushed oyster-shells, or bones, supply the material for making thebones in young growing chickens and the egg-shells forlaying hens. 312. Improving Poultry. To improve a breed orflock of poultry, use the eggs from the individuals hav-ing the desired characters. In breeding for increasedegg-production, the number of eggs laid by a hen ina year is of far more importance than the color of thefeathers. A hen lay-ing 200 or more eggsa year is worth manytimes more than onelaying from 30 to are many poorlayers in all using trap-nestsfor a full-year testthe Maine Experiment. Fig. 151. A home-made trap-nest. Station found that in a number of spring pullets all bredpure to type, only 3 laid more than 200 eggs; 10 laid175 to 200; 11 laid 150 to 174, and so on down; 11 laid75 to 100; 6 laid 50 to 75, and 5 laid 36 to 49. In the development of the breeds of poultry, muchattention has been given to perpetuating the color andcharacter of the feathers, combs, wattles, etc. In recentyears, greater efforts have been made to strengthen themore important qualities, such as regularity and fre-quency of laying, early maturity and other qualities,depending on the kind of poultry. 313. Preserving Eggs. Eggs decay as the result ofthe growth of germs in the rich substances of the temperatures favor the rapid development of 228 Elementary Principles of Agriculture the germs, hence eggs decay much faster in the how the germ makes its entrance through the shellis not fully underst
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