Infectious Diseases 2022

Infectious Diseases 2022

Treatment strategy for the control of roundworm infections in laying hens

Vet Rec Open . 2022 May 30;9(1):e37. doi: 10.1002/vro2.37 11 June, 2022

Ascaridia galli is a widespread problem in cage-free egg production. Sustainable control of nematode infections is a key component in this sector. A primary concern about the use of anthelmintics is always the risk of the development of resistance to these compounds. A new study investigates the effect of a treatment strategy against A. galli, aiming to propose a guideline for anthelmintic use on commercial poultry farms.
According to the study monitoring for A. galli should start at approximately 7 weeks post-placement and should be repeated every 8 weeks until hens are 50 weeks old. Treatment should be given only if moderate to high faecal egg counts are observed. Treatments after this point may be repeated every 8 weeks without eventually performing a faecal test.
These findings provide practical support to veterinarians and egg producers dealing with ascarid worm infection in laying hens in their production stage.