A Guide To Sexing Chicks

By Charles S. Gibbs

Many of the earliest books, particularly those dating back to the 1900s and before, are now extremely scarce and increasingly expensive. We are republishing these classic works in affordable, high quality, modern editions, using the original text and artwork.

• Language: English
• Publisher: Read Books Ltd.
• Release date: Sep 6, 2016
• ISBN: 9781473353275

Book preview

A GUIDE TO

SEXING CHICKS

BY

CHARLES S. GIBBS

Research Professor of Veterinary Science,

Massachusetts State College,

Amherst

ILLUSTRATED

1935

PREFACE

THE writer of this first edition of A Guide to Sexing Chicks was a member of the faculty of the College of Agriculture and Forestry, University of Nanking, Nanking, China, during the period that Dr. Kiyoski Masui and Dr. Juro Hashimoto discovered and gave to the world the art of sexing chicks. Also he made two visits to Japan and had the good fortune of sitting at the feet of Dr. Masui during a series of lectures and seeing Kojima at work among a group of Japanese student-farmers.

Later he found Chinese farmers practising the art in the large poultry raising districts of Shantung. It seems that the art of sexing chicks has been known in the Orient for a long time, but credit should be extended to Dr. Masui, Dr. Hashimoto, Mr. Kojima and Mr. Sakyiyama for raising the art out of mediocrity and placing it on a scientific foundation for the benefit of the poultry industry the world over.

Since returning from the Orient it has been a pleasure for the past five years to make the art of sexing chicks available to the poultrymen of the United States and Canada. With this end in view the writer has given unsparingly of his experience, time and energy to the preparation of this guide, and it is hoped that it will reach a larger group of poultrymen than is physically possible in lectures and demonstrations.

Finally, it must be admitted that this guide is addressed primarily to poultrymen who are unable to obtain expert assistance in sexing chicks, and if it will make up for the lack of properly trained teachers for the time being it will have served its purpose well.

—CHARLES S. GIBBS.

Massachusetts State College,

Amherst, Mass.

CONTENTS

I. GENERAL CONSIDERATIONS

INTRODUCTION

PERSONAL APPRAISAL

BIOLOGICAL FOUNDATION

THE DEVELOPMENT OF THE PROCESS

SOME REASONS FOR SEXING CHICKS

II. GENERAL TECHNIQUE

THE EQUIPMENT

THE METHOD

FIRST PRACTISE

HOLDING THE CHICK

IDENTIFYING THE PROCESS

CROSS-BREEDS

THE LATERAL FOLDS

TRAINING THE EYE

CHECKING THE RESULTS

ANOTHER LESSON IN SEXING

III. SPECIAL TECHNIQUE

TYPES OF PROCESSES

Male Chick Types

Female Chick Types

GROUPS OF PROCESSES

Rotund Group

a. Papular Process

b. Small Rotund Process

c. Large Rotund Process

d. Irregular Rotund Process

The Pointed Group

a. Pyramidal Process

b.