Here’s another pedigree note about inbreeding that I thought you would find interesting. I’ve recently been reading “Horse Breeding In Theory And Practice” by Burchard Von Oettingen which was published in 1909 by Sampson Low, Marston & Co.
In his chapter on Inbreeding on page 318, Oettingen lists the number of male and female winners of the Derby, St. Leger and Oaks arranged according to free generations of inbreeding. Oettingen concludes:
“1. On the whole the most of the classical winners are found among the 4 free generations, next to which follow the 3 and 5 free generations.
“2. Up to the middle of the past century the 4 free generations predominate also. …
“3. From the middle of the past century up to now the whole picture has been changed in favour of a more removed inbreeding. Here the 5 free generations appear to be the most favourable only, after which follow the more removed inbreedings with 6 free generations, and finally that with 7 free generations.
“4. Lastly, it is worthy of note that the winners of two classical races have been more numerously represented with the more removed inbreedings."
I found Oettingen's summary very fascinating that the farther removed inbreeding is from the foal, the better chance you have of producing a quality Thoroughbred.
Although unscientific, I conducted my own survey of modern-day thoroughbreds. The following list illustrates the inbreeding found in the Blood-Horse Top 100 Thoroughbreds of the 20th Century.
1. Man o' War = inbreeding in 5th remove
2. Secretariat = no inbreeding in 5 generations
3. Citation inbreeding in 4th and 5th remove
4. Kelso = inbreeding in 4th and 5th remove
5. Count Fleet = inbreeding in 4th remove
6. Dr. Fager = inbreeding in 3rd, 4th and 5th remove
7. Native Dancer = inbreeding in 4th and 5th remove
8. Forego = inbreeding in 5th remove
9. Seattle Slew = inbreeding in 4th and 5th remove
10. Spectacular Bid = inbreeding in 3rd and 5th remove
11. Tom Fool = inbreeding in 5th remove
12. Affirmed = inbreeding in 4th and 5th remove
13. War Admiral = no inbreeding in 5 generations
14. Buckpasser = inbreeding in 4th remove
15. Colin = no inbreeding in 5 generations
16. Damascus = inbreeding in 4th and 5th remove
17. Round Table = inbreeding in 5th remove
18. Cigar = no inbreeding in 5 generations
19. Bold Ruler = inbreeding in 5th remove
20. Swaps = inbreeding in 4th and 5th remove
21. Equipoise = inbreeding in 4th and 5th remove
22. Phar Lap = inbreeding in 4th and 5th remove
23. John Henry = inbreeding in 4th and 5th remove
24. Nashua = no inbreeding in 5 generations
25. Seabiscuit = inbreeding in 3rd, 4th and 5th generations
26. Whirlaway = inbreeding in 4th and 5th remove
27. Alydar = inbreeding in 4th and 5th remove
28. Gallant Fox = inbreeding in 4th and 5th remove
29. Exterminator = inbreeding in 5th remove
30. Sysonby = inbreeding in 4th and 5th remove
31. Sunday Silence = inbreeding in 4th and 5th remove
32. Skip Away = inbreeding in 4th and 5th remove
33. Assault = inbreeding in 4th and 5th remove
34. Easy Goer = inbreeding 5th remove
35. Ruffian = inbreeding in 4th and 5th remove
36. Gallant Man = inbreeding 3rd and 4th remove
37. Discovery = inbreeding in 4th and 5th remove
38. Challedon = inbreeding in 4th and 5th remove
39. Armed = inbreeding in 4th and 5th remove
40. Busher = inbreeding 3rd and 4th remove
41. Stymie = inbreeding 3rd, 4th and 5th remove
42. Alysheba = inbreeding in 4th and 5th remove
43. Northern Dancer = inbreeding in 4th and 5th remove
44. Ack Ack = inbreeding in 4th and 5th remove
45. Gallorette = inbreeding in 4th and 5th remove
46. Majestic Prince = inbreeding in 5th remove
47. Coaltown = no inbreeding in 5 generations
48. Personal Ensign = inbreeding in 4th and 5th remove
49. Sir Barton = inbreeding 3rd, 4th and 5th remove
50. Dahlia = inbreeding in 4th and 5th remove
51. Susan's Girl = inbreeding 5th remove
52. Twenty Grand = inbreeding 3rd, 4th and 5th remove
53. Sword Dancer = inbreeding in 4th and 5th remove
54. Grey Lag = inbreeding in 5th generation
55. Devil Diver = inbreeding in 4th and 5th remove
56. Zev = inbreeding in 3rd, 4th and 5th remove
57. Riva Ridge = inbreeding in 5th remove
58. Slew o'Gold = inbreeding in 4th and 5th remove
59. Twilight Tear = inbreeding in 5th remove
60. Native Diver = no inbreeding in 5 generations
61. Omaha = inbreeding in 4th and 5th remove
62. Cicada = inbreeding in 5th remove
63. Silver Charm = inbreeding in 4th and 5th remove
64. Holy Bull = inbreeding in 4th and 5th remove
65. Alsab = inbreeding in 3rd, 4th and 5th remove
66. Top Flight = inbreeding in 4th and 5th remove
67. Arts and Letters = inbreeding in 5th remove
68. All Along = inbreeding in 4th remove
69. Noor = inbreeding in 3rd and 4th remove
70. Shuvee = inbreeding in 4th and 5th remove
71. Regret = inbreeding in 4th and 5th remove
72. Go for Wand = inbreeding in the 5th remove
73. Johnstown = inbreeding in 4th and 5th remove
74. Bald Eagle inbreeding in 5th remove
75. Hill Prince = inbreeding in 5th remove
76. Lady's Secret = inbreeding in 3rd, 4th and 5th remove
77. Two Lea = inbreeding in 4th remove
78. Eight Thirty = inbreeding in 3rd, 4th and 5th remove
79. Gallant Bloom = inbreeding in 3rd, 4th and 5th remove
80. Ta Wee = inbreeding in 4th and 5th remove
81. Affectionately = inbreeding in 2nd 4th and 5th remove
82. Miesque = inbreeding in 5th remove
83. Carry Back = inbreeding in 4th and 5th remove
84. Bimelech = no inbreeding in 5 generations
85. Lure = inbreeding in 4th and 5th remove
86. Fort Marcy = no inbreeding in 5 generations
87. Gamely = inbreeding in 4th and 5th remove
88. Old Rosebud = inbreeding in 3rd and 4th remove
89. Bewitch = inbreeding in 4th remove
90. Davona Dale = inbreeding in 4th and 5th remove
91. Genuine Risk = inbreeding in 4th and 5th remove
92. Sarazen = inbreeding in 3rd, 4th and 5th remove
93. Sun Beau = inbreeding in 4th and 5th remove
94. Artful = inbreeding in 4th and 5th remove
95. Bayakoa = inbreeding in 4th and 5th remove
96. Exceller = inbreeding in 3rd, 4th and 5th remove
97. Foolish Pleasure = inbreeding in 4th and 5th remove
98. Beldame = inbreeding in 4th and 5th remove
99. Roamer = inbreeding in 5th remove
100. Blue Larkspur = inbreeding in 3rd, 4th and 5th remove
No comments:
Post a Comment