BHC Newsletter Winter FINAL

BEEF HEALTHCHECK PROGRAMME UPDATE

Seasonal variations were also evident, both in the prevalence of live fluke and of fluke damage overall. In heifers, steers and young bulls, the prevalence of live fluke was higher earlier in the year (Figure 3), when cattle were presumed to have been housed and suggesting inadequate or ineffective treatment around housing and subsequently. Further information on parasite control at housing and of liver fluke generally, are available click here . In each of these classes, the trend over time was of decreasing prevalence. In contrast, the trend in the overall prevalence of liver damage in heifers and steers was upwards, the trend in young bulls was downwards.

15.00%

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7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45

% LIVE FLUKE YB % LIVE COMBINED ST % LIVE FLUKE ST % LIVE COMBINED H Figure 3. Prevalence of live fluke and of fluke damage overall (live combined) in heifers (H), steers (S) and young bulls (YB) over the first 46 weeks of 2017. Trend lines are dashed. % LIVE COMBINED YB % OVERALL (LIVE COMBINED)

As reported previously, marked geographical variation was recorded between counties (Figure 4). The highest level of fluke damage (60.3%) was recorded in Leitrim, while the lowest (11.9%) was in Carlow. The highest prevalence of live fluke (13.6%) was also recorded in Leitrim, while the lowest (1.0%) was in Wexford.

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FLUKE DAMAGE LIVE FLUKE

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Figure 4. Liver fluke results from the Beef HealthCheck programme by county.

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BEEF HEALTHCHECK NEWSLETTER WINTER EDITION

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