Show INFECTED CHICKS SPREAD DISEASE tainted birds immediately become menace to others prepared by th united state department ot Aerl cultura bacillary white also known as disease may bowd from infected chicks to healthy chicks in the same incubator even though the chicks ale not actually in contact the united states department of agriculture announces in reporting progress in the study of the cure prevention and eradication of this serious disease drs hubert bunyea and W J hall have demonstrated the danger of athla type of infection in investigations under way tor two cirs at the bu reau of animal industry experiment station Beth seda md their work was part of a program of study form by the bureau and the rational poultry council the committee in charge of these investigations consisted of drs M dorset M A jull and II 11 bunyea all of the bureau of animal industry the eggs used in the experiment came from two flocks one known to have the disease the other tree from it as shown by the agglutination test separate trays for the two kinds of eggs were used in the incubators and the chicks when hatched were prevented from coming in contact with those in the other trays in four dlf ferent types of incubators it was found that disease was transmitted from infected chicks to normal chicks the infection ranged from 45 per cent in the still air type to 81 per cent in alie agitated air type the control chicks hatched in separate incubators from eggs obtained from non reacting hens showed less than one tenth of one per cent infection in all cases the spread of the disease occurred within a period of from 18 to 24 hours after hatching apparently as a result of air circulation in no case did any of the chicks from one tray have direct contact with those in another tray deaths of healthy chicks exposed to the disease showed that even when the chicks were blooded brooded under the most favorable conditions a large percentage died within two weeks as a result of the infection the experiment showed eliat from th moment it comes out of the shell an infected chick immediately becomes a menace to all other chicks in the game incubator an infected chick Is also a menace when placed in a brooder with healthy chicks incubators for ducks Is now common method the desire to incubate their own eggs has been bred out of many strains of ducks particularly the pe aln this reason alie egg must be batched in incubators or under heos duck eggs should be gathered dally kept in a cool place and turned dally they should be set as soon as 1 ble after laying as they do not keep as well as hens eggs in incubating duck eggs artificially they are handled about the same as hens eggs except that the temperature should be held at degrees tor the first three weeks and mor mols ture supplied in the they may be tested for fertility on the fourth or fifth day I 1 dont waste sunshine needed by chickens even if yon are feeding cod liver oil and have substitute glass in the windows dont waste any pure raw sunshine when coq have a chance to use it on the chicks be willing to open the windows and doors on still sunny days then watch the weather and dose them up when clouds and raw winds appear let the chicks en joy the warmth of pure raw sunshine whenever possible A little extra work in caring for the windows and the ventilating system will be repaid n the improved vigor of the chicks eradicating lice for eradicating lice from poultry use bedlum it kills all varlo ties of lice body head and feather this chemical may be applied by dusti ing or by dipping rither the chemically pure or the commer clar grades kiy be used but the latter Is cheaper and more easily obtained young chicks require very little and a pound of powder costing about 50 cents should kill the lice on a flock of chickens dipping the fowls Is still easier and cheaper clean ground best the chief of the poultry section of the iowa experimental station says even though the old birds show no signs of infection it is not safe to allow young birds even to have access to the same yards runs or ground la oid stock have b ast try setting the 1930 chicks on clean ground entirely away troia the old birds infection can be easily on the shoe by old stock and in T ways Is al ways the best cure |