Audiogram of domestic cattle (Bos taurus)
Ìý
Data from: Heffner, R., and Heffner, H. (1983) Hearing in large mammals: The horse (Equus caballus) and cattle (Bos taurus). Behavioral Neuroscience, 97, 299-309.
Ìý
Absolute thresholds (in dB re 20 µN/m2) for two domestic cattle
(designated A and B)
|
Ìý Frequency (in kHz) |
Individual Thresholds (in dB) |
Ìý Average |
|
|
A |
B |
||
|
.0167 |
>69 |
65 |
~70 |
|
.020 |
76 |
53 |
62 |
|
.0315 |
58 |
53 |
56 |
|
.062 |
41 |
45 |
43 |
|
.125 |
38 |
28 |
33 |
|
.250 |
24 |
21 |
23 |
|
.500 |
13 |
9 |
11 |
|
1 |
4 |
9 |
7 |
|
2 |
-2 |
0 |
-1 |
|
4 |
-7 |
-5 |
-6 |
|
8 |
-13 |
-10 |
-11 |
|
16 |
13 |
12 |
12.5 |
|
32 |
40 |
46 |
43 |
|
40 |
82 |
70 |
76 |
Ìý
Lowest and highest frequencies audible at sound
pressure levels (SPL) ranging from 30 to 70 dB SPL
|
SPL (in dB) |
Lowest audible frequency (in kHz) |
Highest audible frequency (in kHz) |
|
70 |
.017 |
37 |
|
60 |
.023 |
35 |
|
50 |
.043 |
33 |
|
40 |
.076 |
30 |
|
30 |
.150 |
24 |
Ìý
Additional Parameters:
Body weight = 450 kg
Functional interaural distance= 1281 µs
(Time required for sound to travel around the head from one auditory meatus to the other.)
Ìý
Comments: Threshold values taken from original data.