Horn bud size of dairy-bred and suckler-bred calves at time of disbudding

Table 4 Correlation matrix of diameter with height for dairy-bred and suckler-bred M and F calves at disbudding, coefficient of determination (R square) and level of significance (P-value)

Variable (mm)	Breed and number	Sex	Intercept	R square	P value
Diameter	HF (n = 88)	M	−3.5055	0.483	< 0.0001
Height	HF (n = 88)	M
Diameter	LM (n = 32)	M	−4.541	0.593	< 0.0001
Height	LM (n = 32)	M
Diameter	LM (n = 35)	F	−2.7102	0.446	< 0.0001
Height	LM (n = 35)	F
Diameter	CH (n = 39)	M	9.79865	0.652	< 0.0001
Height	CH (n = 39)	M
Diameter	CH (n = 47)	F	−0.68857	0.268	0.0002
Height	CH (n = 47)	F
Diameter	SI (n = 22)	M	−2.7102	0.446	< 0.0001
Height	SI (n = 22)	M
Diameter	SI (n = 16)	F	−3.1919	0.550	0.0007
Height	SI (n = 16)	F

HF Holstein-Friesian, CH Charolais, LM Limousin, SI Simmental. d days old at disbudding. M male. F female. Correlation (effect size and the strength of the correlation) was described using the following: 0.00–0.19 “very weak”; 0.20–0.39 “weak”; 0.40–0.59 “moderate”; 0.60–0.79 “strong”; 0.80–1.0 “very strong”

ISSN: 2046-0481