Faecal Egg Counting

For sustainable worm control, sheep should only be wormed if there is a worm burden present. A Faecal Egg Count (FEC) test is used to count the number of worm eggs in a particular dung sample, and can be used to monitor the worm burden. It can also be used to determine which types of worms or other parasites may be present. This then means the right treatment can be used at the right time. 

For further information on testing for wormer resistance visit SCOPS.

Find out how you can help preserve the older three classes of wormer (1-BZ, 2-LV and 3-ML) by replacing one of your normal wormer treatments in the mid-late season with Zolvix™.

Wake Up To Worm Resistance

Wake Up To Worm Resistance

Protect the future of UK sheep farming with industry-led advice

Zolvix orange 4-AD monepantel sheep wormer


Group 4-AD orange wormer for use as a quarantine or mid-late break dose in sheep/lambs.

Rycoben™ SC for Sheep contains 2.5% w/v albendazole oxide (ricobendazole), 1.8% w/v cobalt sulphate and 0.097% w/v sodium selenate. POM-VPS.

Zolvix™ 25mg/ml oral solution is a broad spectrum anthelmintic for the treatment of gastro-intestinal nematode infections and associated diseases in sheep including lambs, hoggets, breeding rams and ewes. POM-VPS.

Information regarding the side effects, precautions, warnings and contra-indications can be found in product packaging and leaflets; further information can also be found in the Summary of Product Characteristics. Advice should be sought from the medicine prescriber. Use medicines responsibly.

Rycoben™, Zolvix™, Elanco and the diagonal bar are trademarks of Elanco or its affiliates..