Irish Veterinary Journal

Table 1 Effect of breed, age and year on horn bud diameter and height of male dairy-bred and suckler-bred calves at disbudding (n = 181)

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

Variable	HF	CH	LIM	SI	SE	14–28 d	29–60 d	SE	2018	2019	SE	Breed	Age	Year	Breed × age	Year × age	Year × Breed × Age
Diameter (mm)	16.97^a	15.09^b	13.76^b	14.41^b	0.62	14.31	15.81^b	0.44	14.31	15.80*	0.44	**	*	*	NS	NS	NS
Height (mm)	7.79^a	5.10^b	4.69^b	5.39^b	0.62	4.88	6.60^b	0.44	5.91	5.57	0.44	**	**	NS	NS	NS	NS

^a,b Within rows, Lsmeans differ between breed, age categories and year (P < 0.05)
HF Holstein-Friesian, CH Charolais, LM Limousin, SI Simmental
d days old at disbudding, NS not significant (P > 0.05). * P < 0.05, ** P < 0.01
SEM pooled standard error

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ISSN: 2046-0481

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