Introductory 21 



upon which the variety is named. Thus the Silver-spangled 

 Hamburg. 



GLOSSARY OF TERMS USED IN THE TEXT 



It is essential for the student to possess a sufficient knowledge of 

 terminology to intelligently comprehend the text. The following gives 

 a comprehensive glossary: 



Abdomen. That part of the body between the thorax and the pelvis. 



Albuminoid. The more complex forms of protein. They are in- 

 soluble in water or may be rendered so by heat. 



Alfalfa. A leguminous plant used as roughage. Sometimes ground 

 and placed as a part of the mash. 



Alimentary Tract. The whole digestive tube, including the esophagus, 

 crop, stomach, gizzard and intestmes. 



Antiseptic. An agent which prevents the growth of or destroj^s 

 bacteria (germs). 



Artificial Selection. The selection or mating of birds by the breeder 

 to produce certain features which he desires to perpetuate. 



Ash. The portion of feeds left after they have been burned. It con- 

 tains the mineral matter. 



Assimilate. The conversion of digested nutrients into fluid or solid 

 substances of the body. 



Balanced Ration. A combination of farm foods in such proportions 

 and amounts as will nourish an animal or bird for twenty-four hours, 

 with the least waste of food nutrients. 



Barring. Stripes extending across feathers at right angles to its shaft. 



Beard. A group of feathers pendent from the throat, as in Polish or 

 Houdans. In male turkeys, a tuft of coarse, bristly hair, 4 to 6 inches 

 long, projecting from the upper part of the breast. 



Breeding Pen. Is usually made up of from 6 to 14 hens and a male 

 bird. By some 4 hens and a cock is considered a pen. 



Broiler. A bird weighing 2]4 pounds or less and from six to twelve 

 weeks old. 



Brood. All the young birds hatched and brooded by the mother at one 

 time. 



Calorie. The amount of heat required to raise 1 pound of water 4° F., 

 or 1 kg. of water 1° C. 



Cape. The short feathers on the back, shaped like a cape and lying 

 underneath the hackle. 



Capon. A male bird deprived of his generative organs for the purpose 

 of improving the weight and quality of flesh. 



Capacity. Extent of abdominal room for digestive and reproductive 

 organs. 



Carbohydrates. A group of nutrients containing hydrogen and oxygen 

 in the proportions that they form water. They do not contain nitrogen. 

 They include starches, sugars, gums, resins, and other similar substances. 



