Gapeworm worry

[kellysmall87]

I have just had a browse at a webpage that lists the symptoms of Gapeworm. The symptom is gaping their mouths and stretching their necks. I have seen my hens do this on more than one occasion, and they eat a lot of earthworms which can give gapeworm apparently. Should I treat or leave it alone? Am I just worrying?

 

[kellysmall87]

I have just seen a video of a hen with gapeworm and i think im worrying, my hens only occasionally gape their beaks, not struggle for breath! However, is there a prevention?