Multi-select problem: How does the next paragraph end?

How to prevent lice and mites infesting your pigs
Cull and repopulate your herd with pest-free livestock.
Chronically infected pigs should be culled from the rest of your pig population. This is the best way to keep the bulk of your livestock healthy and free of pests or disease.

pick from the following.
[-] However, it's important that you use only healthy pigs that are free of pests to restock your pig population so that you do not usher in a new wave of pest infestation. Restock your pig population with pest-free stock..
[-] Enrich your pigs' diet with compost, fertile soil, and fresh water. Provide your pigs with fresh manure during the summer, and check with your local government to see if you can get your pigs' feces and droppings the way they need to be..
[-] Your pavers, piles and sheds should also be moved to reduce the need for other structures that could actually contain lice. You should also periodically take out any plants that may be attracting lice..
[-] Keep these animals that belong to you as pets. Your local farming or farm supply store should have pest-free animals on hand for experiment..
However, it's important that you use only healthy pigs that are free of pests to restock your pig population so that you do not usher in a new wave of pest infestation. Restock your pig population with pest-free stock.