The practice of brooding poults artificially is becoming more popular and is usually more successful than brooding with turkey hens. The methods used in artificial brooding are very similar to those used in raising chicks, which are discussed in Farmers' Bulletin 1538, Incubation and Brooding of Chickens. However, one point of great importance in brooding poults artificially is to make sure that they do not crowd together while in the brooder house. This can be avoided by frequent attention, by providing an even temperature, and by having good ventilation in the brooder house. A colony house or permanent brooder house that is suitable for brooding chicks is equally suitable for turkeys, but fewer birds should be put in the house, as turkey poults are larger than chicks. Between 75 and 125 poults should be placed under one 52-inch hover in the average colony brooder House. Larger hovers and larger brooding rooms will accommodate 225 poults or more, but only an experienced operator should attempt; to raise groups larger than 150. The prevailing custom is to use brooder stoves in portable colony houses or permanent brooding quarters.
The colony houses may be moved several times each season, thereby giving the poults plenty of free range on clean soil. Since blackhead is closely associated with insanitary conditions, special effort must be made to keep the houses, runs, and yards clean. If permanent brooder houses are used, a floor of concrete from 12 to 14 feet wide or a small gravel or cinder-floored yard is often used in front of the house. A skeleton framework covered with to 1-inch-mesh wire may also be used to floor the outside run either with the permanent brooder houses or with the colony houses ([fig. 11]). Poults are regularly confined to this small yard for the first 8 weeks and in some cases have been successfully reared to market age in it. However, a clean yard containing growing green feed is an advantage in brooding. If it is used only for about 8 weeks each year, there seems little danger of contamination.
The brooder and brooder house should be operated to keep the young turkeys comfortable. A dim light under or above the hover at night has a quieting effect on the poults. The temperature should be high enough to keep the poults comfortable but not high enough to be detrimental to their health. When the poults are first put into the colony house with the brooder stove, the temperature 3 inches above the floor under the hover should be from, 95° to 110° F. This temperature should be lowered gradually as the poults get larger until they are 6 or 8 weeks old, when they require little or no heat, especially in the daytime. It is a common practice in cold weather to keep the general room temperature at the floor rather high, about 75°, to prevent crowding. The exact temperature, however, is of minor importance provided the poults are kept comfortable and good ventilation is maintained. The poults, if comfortable, will be active and contented. This is the real test of temperature. All warm points and surfaces except those at the brooder itself should be eliminated. Free access from all parts of the brooder room to the hover must be provided. All corners in the brooding room, especially back of the hover, should be rounded, preferably by using 1/2-inch-mesh poultry wire. A fence of the same material should be set up around the hover for the first 2 or 3 days until the poults become accustomed to their surroundings and learn to return to the source of heat. Flat roosts 2 to 21/2 inches wide and slightly tilted up at the rear may be placed at graduated levels in the brooder house when the poults are from 2 to 3 weeks old, to encourage them to begin roosting at an early age. This provision lessens the danger of night crowding. The front roost should be 6 inches above the floor and each of the others a few inches higher than the one in front of it and about 81/2 inches apart, center to center.
Figure 11.—Young turkeys in a colony house equipped with wire-floored sun porch.
SANITATION
The brooder house should be thoroughly cleaned and the litter changed once every 7 days, or oftener if disease occurs, regardless of the type of litter used. This cleaning schedule must be adhered to rigidly if blackhead, coccidiosis, and other diseases are to be prevented.
Thoroughly clean and disinfect brooder houses and equipment used for turkeys at the end of each brooding season or oftener if disease occurs. First clean the house thoroughly and burn all litter and droppings or haul them to land that is not to be used for poultry and from which there will be no drainage into the turkey range. Then scrub the floor and sides of the house, if it is of board construction, with boiling hot lye solution (one-third of a can to a pail of water) and allow them to dry out. Next, thoroughly spray the entire inside of the building with a 3- or 4-percent solution of cresol compound or any other approved disinfectant. Give the same treatment once a year to the quarters occupied by the breeding stock. The "fire gun", a large kerosene torch which involves the blow-torch principle, has proved to be valuable in disinfecting, if it is properly used and the house has been thoroughly cleaned.