PART III 



HEALTH AND DISEASE OF POULTRY. 

 INSECT PARASITES. 



MITES. 



THE successful outcome of poultry husbandry work must of 

 necessity depend largely upon a correct knowledge of the 

 materials with which the husbandman has to deal. Modern 

 times of close competition has driven from the field all kinds 

 of haphazard work when considered from the standpoint of economy 

 in production. The husbandman must not only undertake stock, 

 breeds, breeding, and be well informed along the various lines of 

 scientific feeding, but must also be prepared to meet obstacles and to 

 overcome difficulties when they appear. Perplexities are sure to 

 come in the poultry business. Diseases will appear and will work 

 sad havoc unless promptly checked. 



The successful outcome of poultry husbandry work must of ne- 

 cessity depend largely upon a correct knowledge of the materials 

 with which the husbandman has to deal. Modern times of close com- 

 petition has driven from the field all kinds of haphazard work when 

 considered from the standpoint of economy in production. The hus- 

 bandman must not only understand stock, breeds, breeding, and be 

 well informed along the various lines of scientific feeding, but must 

 also be prepared to meet obstacles and to overcome difficulties when 

 they appear. Perplexities are sure to come in the poultry business. 

 Diseases will appear and will work sad havoc unless promptly 

 checked. 



The most successful poultrymen are ever on the alert and watch- 

 ful of unfavorable conditions and tendencies, and are able many 

 times to change the conditions before really serious outbreaks occur. 

 However, when diseases do appear it is imperative that they be met 

 promptly with the most approved scientific treatment. The slack 

 methods of treatment on general principles will not suffice. A disease 

 is a specific abnormal condition and to be successfully treated must 

 be given specific treatment to relieve the adverse conditions and per- 

 mit nature to effect a cure. The following pages are prepared espe- 

 cially for ready reference to meet emergencies as they may arise. 



Birds are notorious as harborers of numerous species of insect 

 pests. These insects belong to three widely separated groups, viz.: 

 (1) the mites; (2) bird-lice; and (3) bugs and fleas. 



THE CHICKEN MITE. 



Bad Effects of Mite Infestation. One of the most formidable 

 enemies of chickens is unquestionably the chicken mite, scientifically 



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