Number of Breeders required — Housing Re- 

 quired for Breeders — Incubator Capacity — 

 Brooder Capacity — Fattening Houses or Sheds 

 — ^Feed Storage — Killing and Picking House — 

 Resident — Horse Power — Feeding Track — 

 Electric Lights — Water Supply — Fences — ^La- 

 bor — Invested Capital — Working Capital — 

 Profits. 



IV. Commercial Duck Farming — Management of 



the Breeding Stock 55 



Age of Breeders — Distinguishing Young from 

 Old Ducks — Selection of Breeding Ducks — 

 Number of Females to a Drake — Securing 

 Breeding Drakes — Houses and Yards for 

 Breeders — Bedding and Cleaning the Breed- 

 ing Houses — Cleaning the Breeding Yards — 

 Water Yards for Breeders — Feeding the 

 Breeders — Egg Production — Time of Market- 

 ing Breeders — Disease — Insect Pests — Dogs. 



V. Commercial Duck Farming — Incubation ... 70 



Kinds of incubators used — Incubator Cellar — 

 Incubator Capacity Required — Age of Hatch- 

 ing Eggs — Care of Hatching Eggs — Selecting 

 the Eggs for Hatching — Temperature — Posi- 

 tion of Thermometer — Testing — Turning the 

 Eggs — Cooling the Eggs — Moisture — ^Fertility 

 — Hatching — Selling Baby Ducks. 



VL Commercial Duck Farming — Brooding and 



Rearing the Young Stock go 



Removing the Newly Hatched Ducklings to the 

 Brooder House — Brooder Houses Required — 

 Brooder House No. 1 — Construction of House 

 — Heating Apparatus — Pens — Equipment of 

 the Pens — Grading and Sorting the Ducklings 

 — Cleaning and Bedding the Pens — Ventila- 

 tion — Other Types of Brooder Houses — 

 hength of Time in Brooder House No. 1 — 

 Brooder House No. 2 — Brooder House No. 3 

 — ^Yard Accommodations for Ducklings — 

 Shade — Feeding — Lights for Ducklings — 

 Pounds of Feed to Produce a Pound of Market 

 Duck — ^Water for Young Ducks — Age and 

 Weight when Ready for Market — Cripples — 

 Cleaning the Yardfr— Critical Period with 



