Author: Eugene Chen Seu
Publisher:
ISBN:
Category : Poultry
Languages : en
Pages : 118

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Book Description

Author: Brian Reeder
Publisher: Author House
ISBN: 1456747835
Category : Pets
Languages : en
Pages : 126

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Book Description
In this introduction to the genetics of form and feathering of the domestic fowl you will fi nd a straightforward method that allows anyone, beginner or advanced hobbyist, to understand how the major genes of form and feathering come together to create the silhouette that is the hallmark of each breed. Beginning with a discussion of the skeleton genes, then moving to muscling genes, feathering genes and fi nally to comb genes, an understanding of the layers that make the silhouette is revealed. From this system of understanding how the silhouette is formed, one can then understand what really makes one breed unique from another. All of the genes presented herein are found in the commonly seen exhibition breeds and many hobbyists will be familiar with these breeds, but may be less familiar with the genetic factors involved. This volume is a wonderful tool for learning the basis of how the breeds are made, how their respective forms are derived from separate genes of form and feathering, and how those genes all come together to make the one visual impression that we consider a breed. There is in fact no one single gene which makes the form of any given breed. Many genes are required to derive each type and the combination of those many genes creates the silhouette. As you will see from the many silhouette illustrations in this book, once you know a breed, it is instantly recognizable from its silhouette alone. In addition to the discussion of the genes, there is a discussion of basic genetic concepts and of the complex and often confusing method of quantitative selection that is very applicable to many of the genes described herein. This book presents a very clear system for learning about the genetics of form and feathering in the domestic fowl and is written to be understood by the young and beginners alike.

Author: University of Hawaii (Honolulu)
Publisher:
ISBN:
Category :
Languages : en
Pages : 68

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Book Description

Author: Helen Macdonald
Publisher: Grove Press
ISBN: 0802146694
Category : Literary Collections
Languages : en
Pages : 282

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Book Description
The New York Times–bestselling author of H is for Hawk explores the human relationship to the natural world in this “dazzling” essay collection (Wall Street Journal). In Vesper Flights, Helen Macdonald brings together a collection of her best loved essays, along with new pieces on topics ranging from nostalgia for a vanishing countryside to the tribulations of farming ostriches to her own private vespers while trying to fall asleep. Meditating on notions of captivity and freedom, immigration and flight, Helen invites us into her most intimate experiences: observing the massive migration of songbirds from the top of the Empire State Building, watching tens of thousands of cranes in Hungary, seeking the last golden orioles in Suffolk’s poplar forests. She writes with heart-tugging clarity about wild boar, swifts, mushroom hunting, migraines, the strangeness of birds’ nests, and the unexpected guidance and comfort we find when watching wildlife.

Author: Bernard Benjamin Bohren
Publisher:
ISBN:
Category :
Languages : en
Pages : 166

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Book Description

Author: Hawaii Agricultural Experiment Station
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 156

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Book Description

Author: Hawaii Agricultural Experiment Station
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 572

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Book Description

Author: Orville William Ostmann
Publisher:
ISBN:
Category : Feathers
Languages : en
Pages : 288

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Book Description

Author: Hawaii Agricultural Experiment Station
Publisher:
ISBN:
Category : Agricultural experiment stations
Languages : en
Pages : 552

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Book Description

Author: Albert B. Godfrey
Publisher:
ISBN:
Category : Poultry
Languages : en
Pages : 132

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Book Description