Parent Category:
OFA offers voluntary databases on radiographic evaluations. The data presented in these two tables are published in "The use of health databases and selective breeding", 4th edition, 2003, OFA 2300 E. Nifong Blvd, Columbia, MO 65201.
Based on 152,589 progeny in the OFA Hip database with known sire and dam hip scores.
| Excellent | Good | Fair | Dysplastic | |
|---|---|---|---|---|
| Excellent | T = 5,8325 N = 5,630 (96.5%) D = 205 (3.5%) |
T = 16,315 N = 15,481 (94.9%) D = 834 (5.1%) |
T = 1,931 N = 1,782 (92.3%) D = 149 (7.7%) |
T= 362 N = 308 (85.1%) D = 54 (14.9%) |
| Good | T = 17,281 N = 16,291 (94.3%) D = 990 (5.7%) |
T = 69,041 N= 63,346 (91.8%) D = 5,695 (8.2%) |
T = 12,008 N = 10,566 (88.0%) D = 1,442 (12.0%) |
D = 301 (16.5%) T = 1,826 N = 1,525 (83.5%) |
| Fair | T = 3,146 N = 2,888 (91.8%) D = 258 (8.2%) |
T = 15,475 N = 13,581 (87.8%) D = 1,894 (12.2%) |
T = 3,957 N = 3,311 (83.7%) D = 646 (16.3%) |
T = 632 N = 456 (72.2%) D = 176 (27.8%) |
| Dysplastic | T = 595 N = 528 (88.7%) D =67 (11.3%) |
T = 2,941 N = 2,394 (81.4%) D = 547 (18.6%) |
T = 935 N = 698 (74.7%) D = 237 (25.3%) |
T = 309 N = 197 (63.8%) D = 112 (36.2%) |
| <6Mths. | 7-12 Mths. | 13-18Mths. | Total | |
|---|---|---|---|---|
| Number | 278 | 714 | 808 | 1,800 |
| No Change | 249 | 670 | 769 | 1,688 |
| Norm to Dys. | 25 | 43 | 31 | 99 |
| Norm to Borderline | 4 | 1 | 8 | 13 |
| Reliabilty | 89.6% | 93.8% | 95.2% | 93.8% |
| Cl Upper | 92.9% | 95.5% | 96.5% | 94.8% |
| Cl Lower | 85.4% | 91.6% | 93.5% | 92.6% |
About the Author
Carmen L Battaglia holds a Ph.D. and Masters Degree from Florida State University. As an AKC judge, researcher and writer, he has been a leader in promotion of breeding better dogs and has written many articles and several books.Dr. Battaglia is also a popular TV and radio talk show speaker. His seminars on breeding dogs, selecting sires and choosing puppies have been well received by the breed clubs all over the country.