The Courier & Advertiser (Perth and Perthshire Edition)

New rules to take force in attempt to eradicate BVD

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New rules in the campaign to eradicate bovine viral diarrhoea (BVD) from Scotland’s cattle herd come into force next Monday, when farmers are required to house all animals identified as being persistent­ly infected (PIs) separately from the core herd.

The expectatio­n is that the new requiremen­t to isolate PIs will not just protect the national herd against further infection, but will also serve as a deterrent against holding on to infected stock.

Official inspection­s are suspended due to Covid-19, but farmers have been warned those herds retaining PI animals will be subjected to unannounce­d visits in the future to ensure that suitable isolation facilities and protocols are place.

The latest figures indicate 48 of 10,061 Scottish holdings being tested and screened for BVD still retain PI cattle, and they own the 122 PIs out of 535,000 cattle tested.

While PIs need to be isolated, the rules allow for a low-risk non-PI animal to be housed alongside a PI for reasons of animal welfare.

Farmers are also required to practise good biosecurit­y between PI animal(s) and the rest of the herd, with cleaning and disinfecti­on of outerwear and equipment between the different groups.

NFU Scotland’s animal health and welfare manager Penny Middleton said great strides have already been made by Scottish cattle keepers in eradicatin­g the costly disease from herds.

She added: “However, persistent­ly infected animals are the biggest cause of spreading BVD and best practice involves removing them from a herd as soon as they are identified.”

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