Table 3 Linear regression analysis describing the line of best fit for the relationship between age with diameter (mm), and age with height (mm) for dairy-bred M calves and suckler-bred M and F calves at disbudding (showing R square and level of significance (P-value))
From: Horn bud size of dairy-bred and suckler-bred calves at time of disbudding
Variable (mm) | Breed and number | Sex | Linear regression | R square | P-value |
|---|---|---|---|---|---|
Diameter | HF (n = 88) | M | y = 0.2044x + 10.2470 | 0.320 | < 0.0001 |
Height | HF (n = 88) | M | y = 0.2249x + 0.2481 | 0.410 | < 0.0001 |
Diameter | LM (n = 32) | M | y = 0.0374x + 12.990 | 0.093 | 0.0903 |
Height | LM (n = 32) | M | y = 0.0512x + 3.679 | 0.073 | 0.1343 |
Diameter | LM (n = 35) | F | y = 0.0742x + 10.613 | 0.091 | 0.0786 |
Height | LM (n = 35) | F | y = − 0.0512x + 3.679 | 0.073 | 0.1343 |
Diameter | CH (n = 39) | M | y = 0.0507x + 13.932 | 0.073 | 0.0872 |
Height | CH (n = 39) | M | y = 0.0507x + 13.932 | 0.073 | 0.0872 |
Diameter | CH (n = 47) | F | y = 0.0752x + 11.73 | 0.175 | 0.0031 |
Height | CH (n = 47) | F | y = 0.0049x + 3.5037 | 0.003 | 0.7209 |
Diameter | SI (n = 22) | M | y = 0.0606x + 13.02 | 0.279 | 0.0097 |
Height | SI (n = 22) | M | y = 0.0606x + 13.02 | 0.279 | 0.0097 |
Diameter | SI (n = 16) | F | y = − 0.00091x + 12.392 | 0.088 | 0.2482 |
Height | SI (n = 16) | F | y = − 0.0413x + 3.8698 | 0.036 | 0.4672 |