Porcine ear necrosis in weaned piglets: prevalence and impact on daily weight gain

Table 1 Weekly prevalence (%) of porcine ear necrosis

Weaning batch	1	2^a	3^a	4	5	6^a	All batches
Number of piglets at weaning	588	565	687	678	751	629	3898
Week post-weaning	Prevalence (%)						Average
1	0.0	0.2	0.1	0.0	0.3	0.2	0.2
2	0.3	0.9	0.1	0.9	0.8	0.3	0.6
3	0.9	2.0	0.7	0.9	0.7	0.3	0.9
4	1.9	10.1	4.7	4.6	4.0	4.8	4.9
5	12.5	20.3	7.2	10.2	9.3	17.7	12.5
6	23.8	23.6	10.7	16.8	14.2	28.8	19.2
7	21.8	31.6	11.1	23.7	20.0	32.0	22.9
Total	61.2	88.7	34.6	57.1	49.3	84.1	38.3

Prevalence of PEN in weaned pigs during the nursery period. Values indicate the relation between affected piglets and the total number of pigs at the end of each week for each weaning batch
^aA mycotoxin detoxifier was added to the feed of weaning batches 2, 3 and 6

ISSN: 2055-5660