First Calver no milk

Kickstart1.3

WH X FR Springer, had a hard calving last Thursday morning. Since then she hasn't come into milk. She had bagged up really well before calving, now I don't think shes giving any milk. Gave her a shot of Oxyi yesterday and saw the calf sucking her after.
This morning the calf still looked hungry so I drew the cows teats and all that is coming is really thick brown almost like caramel. I don't know if there is any milk in that, the calf is sucking her but swapping teats and ducking her.
I've been supplementing the calf with a bottle and may have to bucket rear him.
Question is will the cow come back into milk after a few days? Shes half dairy and I have her comrades which are milking as good as any dairy cow

3 the square

Had a fr heifers like that years ago calves down with grand udder came to milking her and not a drop got my vet to have a look and he said she had some condition and would never produce milk he said it was very rare to see one
Think she went to the factory

whelan2

Is she getting any dairy nuts?

Kickstart1.3

Hi Whelan, no not dairy nuts but I've been giving her a couple of kilos of Weanling crunch.

whelan2

Get a bag of dairy nuts in local co op. Is she ok after the hard calving?

Kickstart1.3

Yes she ok, I was giving her penicillin for a few days but she wasn't sick. I'll try the dairy nuts to see if it helps.