Table 4
Association of patches with hearing in Dalmatians
Researchers |
Patch |
Bilaterally deaf |
Unilaterally deaf |
Normal |
Number of
dogs |
Strain et
al |
Present |
2.0% |
9.2% |
88.8% |
98 |
(1992) |
Absent |
8.2% |
23.1% |
68.8% |
906
|
Strain &
Tedford
(1996)* |
Present
Absent
|
2.0%
8.4%
|
8.5%
23.3%
|
79.5%
68.3%
|
4596
|
|
|
|
|
|
|
* May include data of Strain et al (1992)
Table 5
Selective breeding in Dalmatians
|
|
Progeny |
|
|
|
Reference |
Parents |
Bilaterally
deaf |
Unilaterally
deaf |
Total affected |
Normal |
Number tested |
Yuzbasiyan-
Gurkan
(1994)
|
Normal x Normal
Unilat x
Normal
|
3.9%
13.3%
|
15.8%
14.2%
|
>19.7%+
>27.5%+
|
<80.3%+
<72.5%+
|
>800
|
Strain &
Tedford (1996) |
Normal x Normal
|
5.9% |
21.3% |
27.2% |
72.8% |
4596 |
|
Affected x
Affected*
|
11.3%
|
30.3%
|
41.6%
|
58.4%
|
|
Wood &
Lakhani (1997) |
Normal x Normal
|
4.1% |
11.3% |
15.4% |
84.5% |
458
|
|
Unilat x
Normal |
2.3% |
18.6% |
20.9% |
79.1% |
43
|
* Affected =
bilaterally or unilaterally deaf
+
not BAER tested
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