MODERN POULTRY FARMING By Louis M. Hurd Extension Assistant Professor of Poultry Husbandry Cornell University Rurat SCIence J'eries The Macmillan Company, New York 6 194 Copyright, 1944, by THE MACMILLAN COMPANY. All rights reserved-no part of this book may be reproduced in any form witbout permission in writing from tbe publisher, except by a reviewer who wishes to quote brief passages in connection with a review written for inclusion in magazine or newspaper. Third Printing. NLVSIIVRl \\\\ \\\ \\\\ \\\ \\\ \\\\\\\\\1\ 00633 A Second Revised Edition of Practical Poultry Farming Copyrighted 1928, 1931 by The Macmillan Company PRINTED lIt THE UNITED STATES OF AMERICA TO My MOTHER, LENA R. HURD, WHOSE COURAGEOUS AND PROGRl!.SSIVE SPIRIT WAS AN INSPIRATION TO ME TO UNDERTAKE THIS WORK Preface THIS book is prepared as a practical guide for both large and small poultry keepers and those interested in start ing a po,u ltry enterprise. The practices and methods are those most commonly used by successful poultry keepers and are based on scientific principles. The author desires to express his appreciation to the follow ing members of the Poultry Department at Cornell University, who read or approved parts of the manuscript in their particu lar field: Mr. F. E. Andrews ....... feeding, caponizing and general man- agement. Professor H. E. Botsford ... egg marketing. Dr. J. H. Bruckner ....... breeding methods. Dr. G. O. Hall ....•. , .... breeds and breeding, selection and poul- try marketing. Dr. G. F. Heuser ......... feeding. Dr. F. B. Hutt ......... ·. genetics. Dr. W. F. Lamoreux .....• genetics. Dr. L. C. Norris ......... vitamins. Professor E. I. Robertson .. feeding and vitamins. Dr. A. L. Romanoff ...... incubation. Professor L. E. Weaver .... management. Professor E. Y. Smith ..... turkeys. Also to other members of the staff who made suggestions and other contributions to the book. The author wishes to express his appreciation for the as sistance of Dr. E. L. Brunett, who read and approved the chap ter on diseases and made several valuable suggestions. Dr. A. M. Goodman and F. L. Fairbanks of the Department of Agricultural.Engineering of Cornell University for their sug gestions· on poultry house ventilation. Chapters V and XIII vii viii PREFACE are taken partly from Cornell Bulletins Nos. 153 and 410 written by these men. Many of the pictures were especially taken by the author for this book. A number are from the files of the Poultry De partment at Cornell University. In some cases illustrations have been taken from books or experiment station bulletins or have been supplied by commercial concerns, fof which the author wishes to express his appreciation. Credit has been given in all such cases. Although there is more information about poultfY than ever before, it has not made the management of a flock. any easier. If anything, it has added to the many' conflictin~ ideas with regard to the best methods or practices to follow in caring for a flock. Every poultry keeper, therefore, needs to study, read extensively, and think clearly before starting an enterprise. Changes in practice should then be made cautiously and only when they are based on sound scientlnc evldence i'ltlITl rerra'o\e sources. Ithaca, N. Y. L. M. HURD Contents CHAPTER PAGE I. THE BUSINESS OF POULTRy-KEEPING • 1 II. STARTING A POULTRY ENTERPRISE • 8 III. CHOOSING A BREED.. • 22 IV. INVESTMENT, RETURNS AND EXPENSES IN POULTRY FARMlNG 39 V. POULTRy-HoUSE CONSTRUCTION 54 VI. A HOUSE FOR LAYING HENS 79 VII. HATCHING THE EGGS 98 VIII. R!"QUIREMENTS FOR BROODING CHICKENS • 131 IX. BROODING, FEEDING AND REARING CHICKENS. 159 X. CHOOSING A RATION. 189 XI. FEEDING THE LAYING STOCK • 217 XII. VITAMINS • 238 XIII. ARTIFICIAL ILLUMINATION AS A MEANS OF INCREAS- ING EGG PRODUCTION • 255 XIV. MARKETING EGGS 264 XV. MARKE'flNG POULTRY 298 XVI. CULLING AND SELECTING POULTRY BY EX'l'ERNAL CHARACTERS 348 XVII. SELECTION AND MANAGEMENT OF BREEDERS FOR EGG PRODUCTION 377 XVIII. PRINCIPLES OF BREEDING POULTRY FOR EGG PRODUC- TION 403 XIX. POULTRY DISEASES . 421 XX. TuRKEYS, GUINEA FOWLS AND PEAFOWLS • 501 XXI. DUCKS, GEESE AND SWANS. 531 XXII. PIGEONS • 555 XXIII. PHEASANTS 562 ApPENDIX 571 INDEX. 583 Ix MODERN' POULTRY FARMING I. The BusIness of Poultry-Keeping POULTRY-KEEPING is interesting because it gives pleasure as well as profit to persons of both sexes, all ages, all walks in life m all sections of the country It is useful alike on the farm and in the CIty back-yard, In the cold North, in the sunny South, in the hIll and mountain country, or on the plain It may be conducted as an exclusive business or as a sIde line It affords pleasure and profit for rich and poor ahke In fact, It IS the universal agricultural industry United States census reports show that poultry is more generally kept on farms than any other kind of hve-stock (FIg 1) It is a health-giving recreation to thousands, as well as a means of support FIg 1 The number of ch"kens onjarms over three months of age In 1930 A largejrae tlOTl oj the poult'JI_produced In the United States comesfrom the Middle West and M,ddll AtlantIC Statts U S D A Few realize how large the poultry business is today, due to the fact that it is spread out over such a large area The units, though small, count up quickly. 1 2 MODERN POULTRY FARMING In 1941 the combined gross farm income from chickens and eggs in the United States was $1,172,466,000. The per capita consumption of chickens, dressed weight, in the United States in the same year was 20.3 pounds; eggs, 345. DEVELOPMENT OF THE INDUSTRY (Figs. 2, 3, 4) As an occupation, poultry-keeping is comparatively new, although poultry has heen raised for domestic purposes or Fzg 2 Eggs produced on farms In 1939 About half of the eggs produced In the Unzted States comejrom ajew states In the Mzddle West U S D. A. otherwise for over thirty centuries. No attempt was made to keep poultry in any extensive commercial way until within the last half century. Fifty and sixty years ago there was very little scientific or general information in regard to poultry keeping. Practically no farms kept as many as 1,000 fowls, or even 500. Few if any tests were made at experimental sta tions, and even farm papers had given little attention to this occupation, while colleges had not taught it in any form. Today, however, practically every state college is teaching the science of poultry husbandry and many are doing ex- THE BUSINESS OF POULTRY-KEEPING 3 tensive experimental work also. There are hundreds of young men and women graduating from these institutions with special training along this line. Thousands of others in all parts of the country have become expert through long years of expe rience. It is not uncommon now for poultry-farms to keep 5,000 or more hens. The business of raising chickens is no longer merely a source of pin money for the farmer's wife, but rather, an interesting occupation giving employment to thousands. Per cent 265 250 235 220 POpulatlOn of 1890 = 100"/0 ..--- Humans 205 /..--, 190 ./" 175 ../" /' .................... 1"W.ch cows lbO - /~ ............. ............•...• ~ .. . 1"1~ 130 /".............. . ............... Sheep 110105 ~../ .."~ ---.-----------'-./,.... ........... ......._ ./... ./.._.,- ... '-..........".,-".".. .. -.--.-__- "~'.-I-~.. OSWthienre cattle ............. .. _....- 85 Turkeys 70 55 40 25 10 1890 1900 1910 1920 1930 ·1940 Year Fig. 3. Trends in numbers of principal farm animals from 1890 to 1940. U. S. D. A. Statistics 1941. One result of the rapid development of the poultry industry has been the broadening of the field of specialization within it. This has been stimulated by the rapid increase in the amount of poult~y kept and the newer methods of caring for it.