Table 1 The mean heart rate and prevalence of third and fourth heart sounds
From: The prevalence of the third and fourth heart sounds in clinically healthy Holstein cattle
Age groups (month) | The mean of HR (mean ± SE) | S3 (%) | S4 (%) |
|---|---|---|---|
1–12 (n = 55) | 115.36 ± 2.18 a | 0 a | 3.6 a |
13–24 (n = 42) | 99.88 ± 2.63 b | 2.4 a | 4.8 a |
25–48 (n = 98) | 84.39 ± 2.05 c | 18.4 b | 37.8 b |
>48 (n = 105) | 81.52 ± 1.66 c | 6.7 a | 44.8 b |
Total (n = 300) | 91.23 ± 2.18 | 8.7 | 29.3 |