Summary of The Mating and Breeding of Poultry

The Mating and Breeding of Poultry, by Harry M. Lamon and Rob R. Slocum, is a three-hundred-plus-page historical guide for poultry breeders, particularly those developing standard-bred exhibition poultry or strains selected for egg production.

Key Concepts in Poultry Breeding

Principles of Breeding

• Like produces like: Offspring tend to resemble their parents, although variation is always present.
• Reversion or atavism: Traits associated with earlier ancestors may reappear unexpectedly in later generations.
• Environment and inheritance: The book discusses historical ideas about acquired characteristics. Modern genetics distinguishes environmental effects on an individual from inherited DNA-based traits; management can shape development without automatically changing what offspring inherit.
• Mendelian inheritance: Dominant and recessive inheritance is illustrated through traits such as single and rose combs.
• Sex-linked traits: Some characteristics, including barring, follow inheritance patterns connected to sex chromosomes.

Breeding Strategies

The authors describe several systems used to concentrate desirable characteristics, maintain a family line or introduce additional variation.

• Inbreeding: Mating closely related birds to concentrate and fix traits. This can also expose weaknesses and requires careful selection and records.
• Linebreeding: A planned form of related mating intended to preserve the influence of superior ancestors while managing the risks of close breeding.
• Outbreeding: Introducing birds from another compatible line to broaden a breeding program and maintain vigor.
• Crossbreeding: Mating different breeds to combine productivity, hardiness or other characteristics. Crossbred offspring are not used to preserve a pure standard-bred line.

Selecting Breeding Stock

Selection is presented as the foundation of improvement. Breeders are encouraged to choose strong, active birds with good constitution, sound bone, appropriate feather quality and the traits required by the breeding program.

• Avoid using birds with serious structural, comb or reproductive defects.
• Select for vigor and functional soundness as well as appearance.
• When improving production, use hens with documented laying performance and males from productive families.
• Evaluate the whole family and its results rather than relying on one attractive individual.

Mating Systems

• Single mating: One breeding pen is expected to produce competitive or useful birds of both sexes.
• Double mating: Separate male-line and female-line matings are used when the ideal exhibition characteristics differ between the sexes.
• Stud mating: A selected male is paired or rotated among hens so the breeder can use and evaluate his influence carefully.
• Trap nesting: Individual hens are identified when they enter a nest, allowing the breeder to record production and select proven layers.

Breeding for Increased Production

The book recommends collecting performance information instead of relying on appearance alone. Trap-nest records help identify productive hens, and continued selection over several generations can establish stronger laying families.

Breeders must also decide how they will balance utility and exhibition qualities. A program may emphasize egg production, meat qualities, breed type or a combination, but its goals should be clearly defined and applied consistently.

Guidance for Recognized Poultry Classes

The authors discuss breeding birds from several established classes and breed groups, including:

• American Class: Plymouth Rocks, Wyandottes and Rhode Island Reds.
• Asiatic Class: Brahmas, Cochins and Langshans.
• Mediterranean Class: Leghorns, Minorcas and Andalusians.
• English Class: Orpingtons, Cornish and Sussex.
• Other exhibition groups: Polish, Hamburgs and Games.

Breed names and classifications should be compared with the current American Standard of Perfection, because recognized breeds, varieties and classification language may have changed since 1923.

Preparing Birds for Exhibition

The book connects breeding quality with conditioning and presentation. It discusses appropriate feeding and management for feather quality and general condition, training birds to stand and display themselves, washing light-colored plumage and presenting birds cleanly in the show coop.

Good preparation cannot replace correct breed type or sound condition, but it allows the judge to evaluate a well-managed bird at its best.

Why This Historical Book Still Matters

Lamon and Slocum present poultry breeding as a deliberate, long-term process built on clear goals, records, careful mating and honest evaluation. Those central lessons remain useful whether a breeder is working toward exhibition quality, productivity, hardiness or a combination of traits.

Modern breeders should read the book as both a practical historical resource and a reflection of early twentieth-century poultry science. Current genetics, welfare guidance, health practices and the latest Standard of Perfection should be used alongside it.

A scanned copy of The Mating and Breeding of Poultry is available through the Internet Archive.

Reference

1. Lamon, Harry M., and Rob R. Slocum. The Mating and Breeding of Poultry. 1923. Digital copy hosted by the Internet Archive.

This article summarizes a historical poultry-breeding text for educational purposes. Some terminology and scientific explanations reflect the period in which the book was written. Poultry keepers should compare historical recommendations with current genetics, veterinary, welfare, nutrition and breed-standard guidance before applying them.