07/11/2023
The amber snail π, family Succineidae, is thriving everywhere right now along with other terrestrial gastropods due to the amount of rain we've been having. They are amazing soil health engineers and indicative of healthy soils (feedback loop there). You'll often see them at the top of vegetation πΎ during moist conditions, a behavior somewhat unique to them. This action also means that grazing animals π can reach them. Natural predators include beetles (fireflies!), rodents, some birds, snakes, and frogs.
Amber snails are one group of gastropods that act as intermediate hosts (middle man) for meningeal worm aka brain worm, which comes from white tailed deer π¦. Too many snails on pasture harboring large numbers of worm larvae (πͺ±~10+, I've seen up to 33! πͺ±) can really harm, even kill, livestock when accidentally ingested.
Trying to find the balance of enhancing biodiversity and soil health with animal health risk is so tricky and is something that sustainable farmers need to consider. This is a catch-22 situation.
On our farm, I've determined the risk of illness from brain worm to my animals is typically low, but this year is medium, given the boom in snail population, average size of the snails (~12-15cm) plus frequent visits by deer. If we had more poultry, I'd put them in with the sheep. For now, I plan to keep an eye out for any neurological symptoms and treat accordingly π€.
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