Sheep farmers are set to receive enhanced support to boost flock health and productivity by tackling iceberg diseases.

The Wales Veterinary Science Centre (WVSC) has partnered with the National Sheep Association (NSA) Wales to provide this new assistance.

Iceberg diseases in sheep, such as Maedi Visna and Johne's disease, pose various health, welfare, and economic challenges. They can also significantly impact farm productivity and profitability.

Dr Kate Hovers, WVSC director, noted: “Iceberg diseases are so named because it is likely that the majority of infected stock remain hidden under the surface and that sheep with visible signs or symptoms represent just the tip of the problem.

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“By their very nature, iceberg diseases are difficult to control, and it can be very hard to identify infected animals.”

Initial signs and symptoms of iceberg diseases are often subtle and non-specific. Animals may not show illness until the disease has become severe and spread through the flock, leading to production inefficiencies due to persistent subclinical infections.

Dr Hazel Wright, WVSC centre manager, emphasised the centre’s commitment to helping sheep producers maximise their flock returns.

“The significant funding we received from NSA Cymru has allowed the WVSC to perform and validate Enferplex testing for sheep flocks and we are delighted to be able to add this vital service to our currenting testing repertoire.”

She added: “Data from other EU countries shows us that using Enferplex testing for iceberg diseases can lead to significant improvements in flock health and productivity; both at individual farm level and nationally.

"However, awareness and routine screening amongst the industry remains rather low.”

Helen Roberts, NSA Cymru development officer, highlighted the pressing nature of iceberg diseases in the sheep industry.

"Having first-class facilities to test for them is great news for the sector and will help combat the productivity and health issues that arise when these diseases have taken hold.

"These tests are an extremely important management tool and will benefit and protect the whole sheep industry going forward."