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Genetics Of The Fowl

Autor: F. B. Hutt
Publisher: Norton Creek Press
ISBN: 0972177035
File Size: 17,47 MB
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This has been the indispensable companion of chicken breeders since its introduction in 1949. Chapters include the genetics of plumage, egg production, body size, disease resistance, and much more. (Animals/Pets)

Genetics And Evolution Of The Domestic Fowl

Autor: Lewis Stevens
Publisher: Cambridge University Press
ISBN: 9780521403177
File Size: 20,34 MB
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The science of genetics has undergone a period of very rapid and significant development in recent years, and the area of poultry genetics has been no exception. This book provides a balanced and up-to-date account of all the major areas of this subject from Mendelian to modern molecular genetics. The book begins by tracing the evolution of Gallus domesticus from its avian ancestors. Subsequent chapters cover important aspects of poultry genetics, including cytogenetics, transmission genetics, gene mapping, sex linkage, lethal genes, genetics of feathering and plumage, and quantitative genetics. In each chapter, a concise explanation of the genetic principles is followed by a full discussion illustrated by key examples. In the latter part of the book, recent advances in gene cloning and sequencing are examined. The impact of these exciting new developments on our understanding of gene structure and organisation, immunogenetics and the evolution of proteins is assessed. Finally, the uses of transgenic techniques and their implications are discussed. This book provides a clear and useful survey of the genetics and evolution of the domestic fowl, which will be of interest to postgraduate students and researchers in the fields of genetics, agriculture and veterinary medicine, as well as to poultry breeders (both commercial and non-commercial).

An Introduction To Form And Feathering Of The Domestic Fowl

Autor: Brian Reeder
Publisher: Author House
ISBN: 1456747835
File Size: 30,81 MB
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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.

Gamefowl Genetics

Autor: Napoleon Nalcot
Publisher: Napoleon Nalcot
File Size: 30,84 MB
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Breeding is as complicated as a jigsaw puzzle you’re trying to complete with. You have to be well-versed in the basics of gamefowl genetics to gain traction in whatever breeding program you’re into. You have to know what DNA is all about and of its functions. Sure, we were taught about genes in schools and that they’re made up of pieces of DNA. Human DNA, for example, serves as a blueprint for which all the information about a particular person’s traits is stored. Gamefowl DNA functions the same. While there are many different breeding methods you can choose from, the goal is one and the same. And it has something to do with the outcome of a particular mating you were able to predict with reasonable accuracy from the very start. You can freely breed your favorite gamefowls any way you want, but you can only consider yourself a successful breeder when, in doing so, the desired results outweigh all the risks. This book aims to educate, for the most part, the ordinary “rooster man” or sabongero, as well as the neophyte gamefowl breeder, on the proper gamefowl genetics selection, pros and cons of different gamefowl breeding methods, and my personal bias on the best breeding method involving gamefowls.

Inheritance Of Characteristics In Domestic Fowl

Autor: Charles B. Davenport
Publisher: Createspace Independent Publishing Platform
ISBN: 9781729819296
File Size: 5,34 MB
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This special re-print edition of Charles B. Davenport's book "Inheritance of Characteristics in Domestic Fowl" is a basic guide to poultry genetics. Written in 1909 by of the early experts on poultry and particularly chicken genetics, this classic text sheds light on the inheritance of the basic characteristics of poultry. Included in this short book are chapters on the inheritance of the Split or Y Comb, Polydactylism, Rumplessness, Winglessness, Booting, Nostril Form, Crests, Comb Lops, The Basic Plumage Colors of White, Black and Buff, The Inheritance of Blue, Spangled or Barred Plumage and more. Note: This edition is a perfect facsimile of the original edition and is not set in a modern typeface. As a result, some type characters and images might suffer from slight imperfections or minor shadows in the page background.

Poultry Genetics Breeding And Biotechnology

Autor: W. M. Muir
Publisher: CABI
ISBN: 9780851998459
File Size: 9,43 MB
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This comprehensive research book represents the first complete integration of current knowledge in this area. It addresses issues associated with poultry breeding particularly by examining quantitative and molecular genetics and the uses of transgenic technology. A special section covers the important area of disease resistance and transmission.

Population Genetics And Ecology

Autor: Samuel Karlin
Publisher: Elsevier
ISBN: 0323142230
File Size: 18,89 MB
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Population Genetics and Ecology is a collection of papers presented at a 1975 conference-workshop held in Israel and is devoted to topics in population genetics and ecology. Contributors discuss topics related to population genetics and ecology, including the determinants of genetic variation in natural populations; experimental design and analysis of field and laboratory data; and theory and applications of mathematical models in population genetics. The book describes a number of field and laboratory studies that focus on a variety of spatial and temporal character and enzyme frequency patterns in natural populations, along with possible associations between these patterns and ecological parameters. This volume is organized into three sections encompassing 31 chapters and begins by summarizing the results of field and laboratory research that investigated gene frequency patterns in space and time of animal and plant populations. This book then explains the origin of new taxa; animal and plant domestication; variation in heritability related to parental age; and problems in the genetics of certain haplo-diploid populations. The next section offers a combination of data analyses and interpretations of related models, with some papers devoted to the origin of race formation and the interaction between sexual selection and natural selection. Among the theoretical studies presented are facets of selection migration interaction; stochastic selection effects; properties of density and frequency dependent selection; concepts and measures of genetic distance and speciation; aspects of altruism; and kin selection. This book will be of interest to naturalists, experimentalists, theoreticians, statisticians, and mathematicians.

Sex Chromosomes And Sex Linked Genes

Autor: Susumu Ohno
Publisher: Springer Science & Business Media
ISBN: 3642881785
File Size: 25,67 MB
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Natural selection operates among individual organisms which differ in their genetic constitution. The degree of hereditary variability within a species is greatly enhanced by cross-fertilization. Indeed, the mechanism of sexual reproduction occurred very early in evolution, for it is seen today even in bacteria. In Escherichia coli, fertilization occurs by passage of the single chromosome from the male into the female bacterium (LEDERBERG, 1959). In multicellular organisms, the separation of germ from soma, and the production of haploid gametes became mandatory. The gametes were of two types. One, extremely mobile, was designed to seek out and penetrate the other, which loaded with nutrients, received the mobile gamete and intiated the development of a new individual. The foundation for true bisexuality was thus laid. In the primitive state of bisexuality, whether an individual is to be a sperm-producing male or an egg-producing female appears to be decided rather haphazardly. In the worm, Banelia viridis, the minute males are parasites in the female. Larvae that become attached to the proboscis of an adult female become males, while unattached larvae sink to the bottom and become females (BALTZER, 1935). The more sophisticated state of bisexuality was initiated by setting aside a particular pair of chromosomes for specialization and making either the male or the female a heterogametic sex. Sex chromosomes as we know them were thus born.