Influence of Age on Expression of Genes Controlling Rate of Chick Feathering: Thesis (Classic Reprint) - Hardcover
Synopsis
Influence of Age on Expression of Genes Controlling Rate of Chick Feathering explores how feathering in chicks is shaped by age and by genetic factors.
This study tracks how early and late feathering develop, and what genes and modifiers influence the final feathering pattern in broilers and other breeds.
The book presents a frame of experiments comparing different stock types and breeds, including Leghorns, Barred Plymouth Rocks, and Rhode Island Reds. It explains how scientists observed feathering from day-old chicks through six weeks, using measurements of wing and tail feathers and a series of standardized descriptions. The results highlight how certain sex-linked genes interact with modifying factors to influence broiler feathering, and how these traits can be passed through generations.- Learn how researchers classify day-old chicks by feathering type and track changes at ten days and six weeks.
- See how traits like the number of secondaries and back feathering scores relate to later feathering in broilers.
- Understand the idea of sex-linked and autosomal modifiers and what they suggest about inheritance patterns.
- Get a sense of how practical selection strategies could improve broiler feathering while considering genetic complexity.
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