Transcriber’s Notes
Obvious typographical errors have been silently corrected. Variationsin hyphenation and accents have been standardised but all otherspelling and punctuation remains unchanged.
POULTRYDISEASES
Causes
Symptoms
and Treatment
With Notes on
Post-Mortem Examinations
E. J. WORTLEY, F. C. S.
Illustrated
NEW YORK
ORANGE JUDD COMPANY
1915
LONDON
KEGAN PAUL, TRENCH, TRÜBNER & CO., Limited
Copyright, 1915, by
ORANGE JUDD COMPANY
All Rights Reserved
Entered at Stationers’ Hall
LONDON, ENGLAND
Printed in U. S. A.
[Pg v]
PREFACE
Poultry farming as a means of profit canbe made successful only by maintaining themost vigorous and sustained campaignagainst disease. The aim of the poultryrearer should be to stamp out disease bypreventive measures. Practical experienceproves the inefficiency of many so-calledcures, and points to the urgency of poultrymenendeavoring to understand more thoroughlythe causes of the ailments to whichdomestic fowls are liable.
My aim is to put a concise handbook intothe hands of poultry rearers, who shouldthus be assisted in determining the variousdiseases and in taking the precautionarysteps important in preventing the introductionand spread of contagious diseases. Noeffort is made to elaborate the scientific sideof the subject. Those desirous of obtainingfull information about the types oforganisms that have been proved to be thespecific causes of, or to be invariably asso[Pg vi]ciatedwith, particular disorders, may do sowith profit by obtaining fuller works on thesubject. Many scientific workers are devotingtheir time to the problem of combatingdiseases among poultry, and assistanceis willingly given by officers of the experimentstations to farmers who desire toidentify any disease causing loss in theirflocks.
The practical poultryman will recognizethe fact that measures for the control ofdisease cannot be limited to sanitationand the treatment of sick birds, but, inreality, include such important matters asthe selection of healthy stock, intelligentfeeding, proper housing, and other detailsessential to the successful management ofpoultry.
I gratefully acknowledge my indebtednessto the works of Dr. D. E. Salmon andJohn H. Robinson, editor of Farm Poultry,and to the recent publication on poultry diseasesby Dr. Raymond Pearl, Frank M.Surface, and Maynie R. Curtis. My thanksare due to R. S. Martinez for the care taken[Pg vii]in making the photographs from which thedrawings for the illustrations in the chapteron Post-Mortem Examinations were prepared.Much valuable information hasalso been obtained from bulletins issued bythe experiment stations of the United Statesand by the Ontario Agricultural College ofCanada.
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