Here's why:
* Life Cycle: Horse lice go through a life cycle that includes eggs (nits), larvae, and adults. The eggs are incredibly resistant and can survive for long periods in the environment, even in old hay.
* Habitat: Horse lice prefer a warm, humid environment, and old hay can provide such conditions.
* Food Source: While they primarily feed on horses, lice can also survive for a while by feeding on any organic matter, including the hay itself.
Important Note: While horse lice might survive in old hay, it's unlikely they will thrive or reproduce there. They need a host animal for a sustainable population.
If you're concerned about lice in your hay, it's best to:
* Store hay properly: Store hay in a dry, well-ventilated area to prevent lice from thriving.
* Inspect your hay regularly: Look for signs of lice infestation, such as nits (eggs) or adult lice.
* Treat your horse: If your horse is infested with lice, contact your veterinarian for treatment options.
Remember, preventing lice infestations is easier than treating them. Practice good hygiene and proper storage to minimize the risk.