510 



INDEX 



Double mating, purpose of, 139- 



140 

 Drainage, importance of, 250 

 Drake, characteristics of, 158 



number of ducks per, 158 

 Drawing and trussing, operation of, 



450 

 Dressed poultry, average price paid 



for, 22 

 Dressing, loss of weight in, 438 



special styles of, 438 

 Drinking vessels, 413—417 

 Dropping boards, 283, 285 

 Dry bone, 355 



mash, 379 



picking, advantages of, 431 

 methods of, 431^35 

 Dryness, importance of, in house, 



261 

 Duck farming, advantages of, 47 

 Ducklings, feeding of, 403—404 

 Ducks, Aylesbury, 63 



breeds of, 83-85 



care and management of, 157- 

 158 



feeding of, 403 



growing, standard for, 363 



housing and yarding of, 299 



Indian Runner as egg produc- 

 ers, 85 



Muscovy, origin of, 83 



number of, in United States, J.7 



Pekin, for market, 83 



standard style of pack, 447 

 Duodenum, 315 

 Dust wallow, need of, 286 



Early maturity, 148-150 



relation of, to high pro- 

 duction, 151 

 value of, 148, 149 

 Economic value of fancy points, 58 

 Ectoderm, description of, 169 

 Egg, analysis of the, 310 



appearance of fertile, 167, 174 

 bound, 484 



color of American class, 76 

 drying machine, 35 

 effect of feed on flavor of, 373 

 formation and fertilization of, 

 91-94 



Egg, freak, 94-96 



incubation, developpaent of 

 parts of, 167-176 

 periods, 182 

 Hme content of, 310 

 packages, 224 

 position of, during incubation, 



214 

 production, 89-94 

 forcing of, 393 

 receipts for last nineteen years, 



22 

 structure of, 162-166 

 tester, 202 

 tray, 190 



turning devices, 204-205 

 Eggs, absorption of odors, 468 

 average price paid for, 22 

 bacterial content of, 374, 466- 



468 

 candling, 469 

 causes of dirty, 467 

 demand for, 21-22 

 as food, 21 



hatching of, care of, 177 

 cooling, 207 

 disinfecting purchased, 



181-182 

 resting after shipment, 180 

 selection of eggs for, llfi 

 temperature for holding, 



179 

 time of holding, 178 

 turning of, 179 



during hatching pe- 

 riod, 215 

 warming of, 180-181 

 washing of, 180 

 home preservation of, 479 

 imports of, 24 

 infertile, production of, 478 

 keeping quality of, 467 

 market, deterioration of, 465 

 grades of, 469-477 

 loss in, 464 



where it occurs, 465 

 precautions which will 

 effect improvement, 

 .477-479 

 preparation of, 463-479 

 moisture, loss of, during incu- 

 bation, 209 

 shrunken, cause of, 465-466 

 size of, 166 



