Increases in the completeness of disease records in dairy databases following changes in the criteria determining whether a record counts as correct

Table 1 The number of farmer-recorded locomotor diagnoses (FD) and the number of veterinarian attended (FD vet) locomotor diagnoses during two 2-month periods in 2008 in four Nordic countries, and the number of recorded locomotor diagnoses from the National Databases (ND) during the same period

Country	Diagnosis	FD	FD vet	ND	FD-/ND+
Denmark	Arthritis	20	20	8	8
	Laminitis	3	3	0	0
	Dermatitis	110	47	103	145
	Hoof abscess/sole ulcer	183	109	0	0
	Lameness other	54	33	82	95
	Disease events without diagnosis	38
	Total	408	212	193
Finland	Arthritis	16	16	21	16
	Laminitis	11	6	6	6
	Dermatitis	4	2	6	2
	Hoof abscess/sole ulcer	18	17	2	17
	Lameness other	62	50	23	50
	Disease events without diagnosis	29
	Total	140	91	58
Norway	Arthritis	5	5	4	5
	Laminitis	12	9	5	9
	Dermatitis	12	12	0	12
	Hoof abscess/sole ulcer	14	10	0	10
	Lameness other	27	15	17	15
	Disease events without diagnosis	8
	Total	78	51	26
Sweden	Arthritis	17	17	2	17
	Laminitis	3	3	5	3
	Dermatitis	13	8	0	8
	Hoof abscess/sole ulcer	48	37	14	37
	Lameness other	80	59	20	59
	Disease events without diagnosis	26
	Total	187	124	41

The FD-/ND + is disease events recorded in the ND but not recorded in the FD The disease events were recorded from 105, 167, 179 and 129 herds in Denmark, Finland, Norway and Sweden respectively and clinical signs and/or a diagnosis were given by the farmer.

ISSN: 1751-0147