Page:Poultry diseases, causes, symptoms and treatment, with notes on post-mortem examinations (IA cu31924000931570).pdf/17



HE ravages of disease add considerably to the difficulties of raising poultry in all parts of the world. It is the experience of poultry rearers that an annual toll has to be paid in the lives of young birds and older stock. Sooner or later, in addition, an epidemic may break out and result in heavy losses and much discouragement.

It is most important, therefore, to be able to recognize the symptoms and to know the causes of the many diseases to which various kinds of poultry are subject. Every practical effort should be made to reduce avoidable mortality. Am unexplained death should be regarded with concern. It may point to the presence of a serious disease. When there is not sufficient external