Welcome to the world of hogs! Your life will never be the same again…
If you look on the vale wildlife website under the rehabillitators area there are links to charts of drugs, fluids and various other stuff of interest.
You haven’t said above what the weights are for your 5 – are they babies or juveniles? As long as weight gain is consistant in juveniles it’s ok. Babies need to be putting on a min of 5gms per day.
I’m going to strongly suggest that you contact the BHPS and find your nearest carer and have a chat with them.
It is alway’s useful to have access to help and advice from someone with experience as no 2 hogs are alike and you will also find feeding needs may alter with hogs in captivity at the beginning.
Everyone on here feeds different things – I personally use Royal Canin Puppy and small dog food and Vitalin ferret food – but this also gets added to with various cat/dog foods donated by the vets and other people. Some hogs only like wet food and I use dog pate and with some fussy eaters Natures menu until I get them onto dried food.
Babies get kitten or puppy mousse ( Royal Canin ) and also A/D
As for weighing them that will depend on the hogs so you really need to speak to someone on the phone and not just rely on help on this site
Hope that helps