Livestock Parasite Control and Welfare: Balancing Treatment with Animal Health

Parasites cause significant welfare and production losses in livestock. Effective, welfare-conscious parasite management reduces suffering while maintaining drug efficacy.

Key Facts

Gastrointestinal nematodes are among the most economically significant parasites of sheep, cattle, and goats
Resistance to anthelmintic drugs is widespread and growing, threatening long-term parasite control
Ectoparasites including mites, lice, and flies cause chronic irritation, skin damage, and disease transmission
Integrated parasite management reduces drug use while maintaining control through strategic treatments
Genetic selection for parasite resistance offers a long-term welfare and sustainability solution

Welfare Considerations

Parasite burdens cause significant animal suffering including diarrhoea, weight loss, anaemia, skin irritation, and reduced immunity to other diseases. Without adequate parasite control, animals experience chronic welfare impairment. However, over-reliance on anthelmintics has driven resistance, threatening future control options. Welfare-conscious parasite management uses targeted selective treatment based on clinical signs and faecal egg counts rather than blanket prophylactic treatment. Refugia-based strategies, rotational grazing, and genetic selection for resistance maintain drug efficacy while improving sustainability. Good parasite control is both a welfare and a long-term livestock management imperative.

What You Can Do

Support farmers adopting integrated parasite management approaches
Advocate for research funding into parasite resistance and control alternatives
Choose meat and dairy from farms with responsible antiparasitic use policies
Learn about the welfare impact of parasites and the importance of sustainable control