Limping, dirty bum pullet. Possible injury after hawk attack?

[SurferchickinSB]

I do not have tums. The crumbles I mix in the with groovy mix has oyster shells in it. But not realizing the importance of it when I bought grit a month or so ago, it was just the little rocks, not the crushed shells. So although they are getting some, maybe not enough? I was going to use up the rocks, then buy the she'll grit. Perhaps I should go ahead and switch?

Grit and oyster shell serve two completely different purposes. Grit is to help them digest their food and oyster shell is to replace the calcium that is lost when they make an egg shell.

 

[SurferchickinSB]

AH, so I need both grit and the shells?
How do I control the lice and their eggs? I gave her and the flock a dust bath of diatameceous earth yesterday evening. She was the only one with the eggs like that.
I was thinking it was a strain, but it is odd to be progessive.. Any way to help her with the strain? She does not have bumblefoot.

Unfortunately if she has mite eggs on her vent, the rest of your flock will most likely get them if they don’t have them already

 

[FarmeRoach]

Yes, Grit & Oyster Shells in separate dishes.

DE is controversial, I was told/read to use on mites/lice however, now believe it's more a preventative. My notes say for lice - Think there's 2 types, bird lice (attacks the chicken) and deplumbing lice (affects the feathers)

Ivermectin (round, thread gape worms & external parasites) - 1 drop at neck/chicks, 3 drops/bantam, 4 drops lite weight, 5 drops/lrg bird, 6 drops/heavy bird, repeat 14 days, 8wk withdrawal

Depluming - 1oz liquid soap, 2oz sulphur, 1 gal warm water, submerge chicken, spray coop/roosts/nest, remove all shavings.

Let me tag some help on this ....
@azygous @casportpony @dawg53

Thank you greatly for sharing your knowledge! Where can I find ivermectin?

 

[FarmeRoach]

Update : still no egg as of 6 this morning, still has limp, although she did hop off the roost herself this morning. I am not home right now, so she could be nesting but I won't know anything until late this evening

 

[ChickNanny13]

I've seen "ivermectin" at the feed stores, maybe Walmart ...