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Practical Color Genetics for Livestock Breeders [Minkštas viršelis]

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  • Formatas: Paperback / softback, 200 pages, aukštis x plotis: 243x172 mm, weight: 702 g
  • Serija: Animal Breeding
  • Išleidimo metai: 31-Aug-2021
  • Leidėjas: 5M Books Ltd
  • ISBN-10: 1789181356
  • ISBN-13: 9781789181357
Kitos knygos pagal šią temą:
Practical Color Genetics for Livestock BreedersDidesnis paveikslėlis
  • Formatas: Paperback / softback, 200 pages, aukštis x plotis: 243x172 mm, weight: 702 g
  • Serija: Animal Breeding
  • Išleidimo metai: 31-Aug-2021
  • Leidėjas: 5M Books Ltd
  • ISBN-10: 1789181356
  • ISBN-13: 9781789181357
Kitos knygos pagal šią temą:
Pastovi nuoroda: https://www.kriso.lt/db/9781789181357.html
For animal breeders colour coat genetics is one of the fundamental elements of breeding, along with health and conformation. Breeders need to know about colour coats for showing purposes and where the fibre is used in industry, for example sheep and alpaca wool.









The science behind breeding for genetic traits is complex because of dominant and recessive traits. Because animals inherit two alleles for the base coat colour, it is possible that their phenotype, or visual appearance, does not reflect their underlying genotype.









This book is a practical guide for breeders on the biology behind colour coats in large animals directing breeders on how to implement breeding strategies to achieve desired results.
Preface viii
Figure Attributions
xi
1 Introduction
1(25)
1.1 How to Use This Book
1(1)
1.2 How Color Works in Livestock
2(2)
1.3 Basics of Genetics
4(6)
1.3.1 Genetic Nomenclature
9(1)
1.4 Basics of Pigmentation
10(4)
1.5 Basics of White Spotting
14(2)
1.6 Basic Hair and Wool Biology
16(3)
1.7 Basic Color Identification
19(1)
1.8 General Principles Across All Species
20(6)
1.8.1 Extension Locus
20(1)
1.8.2 Agouti Locus
21(3)
1.8.3 Further Modifications
24(1)
1.8.4 General Overview of Color Control
24(1)
1.8.5 White Spotting
25(1)
2 Goat Color
26(27)
2.1 Extension Locus
27(2)
2.2 Agouti Locus
29(9)
2.3 Dilution
38(3)
2.4 Moon Spots
41(1)
2.5 White Spotting
41(9)
2.6 Modifications Adding Color into White Spotting
50(3)
3 Goat Agouti Locus Details
53(23)
3.1 Predominantly Tan Patterns
57(2)
3.2 Tan Patterns with Black Trim
59(2)
3.3 Tan Patterns with Black Periphery
61(3)
3.4 Patterns with Tan Front and Black Rear
64(2)
3.5 Patterns with Black Front and Tan Rear
66(4)
3.6 Black Patterns with Tan Stripes
70(3)
3.7 Black or Nearly Black Patterns
73(2)
3.8 Combinations of Patterns
75(1)
4 Putting Knowledge to Work: Goats
76(21)
4.1 Strategies for Color Production in Shorthaired Goats
76(4)
4.2 Strategies for Color Production in Cashmere Goats
80(1)
4.3 Introducing and Selecting for a Recessive Allele
81(1)
4.4 Introducing and Selecting for a Dominant Allele
82(1)
4.5 Rare New Colors
83(1)
4.6 Strategies for Color Production in Angora Goats
84(13)
4.6.1 Truly Black and Red Angora Goats
94(1)
4.6.2 Brown Angora Goats
95(2)
5 Sheep Color
97(30)
5.1 Extension Locus
100(3)
5.2 Agouti Locus
103(4)
5.3 White Sheep Versus Black Sheep
107(1)
5.4 Transverse Stripes
108(1)
5.5 Dilution
108(6)
5.6 Moon Spots
114(1)
5.7 Australian Piebald
114(1)
5.8 Sur
115(1)
5.9 Dark Points on Down Breeds
116(1)
5.10 White Spotting
117(7)
5.11 Modifications of White Spotting
124(2)
5.12 Terminology Specific to Shetland Sheep
126(1)
6 Sheep Agouti Locus Details
127(30)
6.1 Patterns That Are Mostly Tan or White
131(4)
6.2 Patterns That Are Mostly Tan with Black Trim or Periphery
135(4)
6.3 Grey Patterns That Lighten After Birth
139(4)
6.4 Patterns with Mixed Areas of White/Tan and Black
143(1)
6.5 Patterns with an Interplay of Tan and Black Areas
143(5)
6.6 Patterns That Are Mostly Black or Have White or Tan Trim
148(9)
7 Putting Knowledge to Work: Sheep
157(22)
7.1 Strategies for Wool Sheep
157(17)
7.1.1 Multicolored Breeds: Shetland and Icelandic
158(2)
7.1.2 Managing Variation in Multicolored Breeds: Navajo-Churro Sheep
160(1)
7.1.3 Color Expression in Finewool Breeds
161(1)
7.1.4 Color Expression in Longwool Breeds
162(5)
7.1.5 General Strategies for Moorit and Mioget
167(1)
7.1.6 Moorit Romeldale Sheep
168(5)
7.1.7 General Quality of Colored Wool Sheep
173(1)
7.2 Strategies for Color Production in Hair Sheep
174(2)
7.3 Rare New Color or Pattern
176(3)
8 Cattle Color
179(33)
8.1 Extension Locus
180(2)
8.2 Dominant Red Locus
182(1)
8.3 Agouti Locus
182(4)
8.3.1 Brindle
185(1)
8.4 Dilution
186(4)
8.5 Albino and "Near Albino" Colors
190(1)
8.6 White Spotting
191(18)
8.6.1 Roan
204(3)
8.6.2 Combinations of White Spotting Patterns
207(2)
8.7 Modifications of White Spotting
209(3)
9 Putting Knowledge to Work: Cattle
212(8)
9.1 Solid Colors
213(2)
9.2 Spotted Colors
215(2)
9.3 Trademarking Crossbreds
217(3)
10 Alpaca and Llama Color
220(19)
10.1 Extension Locus
222(1)
10.2 Agouti Locus
223(5)
10.3 Mosaics of Tan and Black
228(1)
10.4 Dilution
229(1)
10.5 Harlequin / Appaloosa
230(1)
10.6 White Spotting
231(8)
10.6.1 Grey
235(1)
10.6.2 Roan
236(1)
10.6.3 White
237(2)
11 Putting Knowledge to Work: Alpacas and Llamas
239(5)
12 Hog Color
244(11)
12.1 Extension Locus
244(3)
12.2 Agouti Locus
247(2)
12.3 Dilution
249(1)
12.4 White and Related Colors
249(3)
12.5 White Spotting
252(3)
13 Putting Knowledge to Work: Hogs
255
D. Phillip Sponenberg, DVM, PhD is Professor of Pathology and Genetics at the Virginia Maryland College of Veterinary Medicine. His breed conservation endeavors include techincal adviser for the Livestock Conservancy as well as extensive work in Latin America.