Hi there, lucky you to have some gorgeous babies - how old are they now? I have had a few from babies, and have taken things quite slowly with new foodstuffs to start with - it is a good idea for them to try new things, but not all at once if that makes sense. They will of course be used to chomping on hay and nuggets, but these are very 'dry' and it is good for them to have roughage and a good variety of fruit and veg with vitamin C - if you check on these threads there are lists of food recommended, and lots of good advice from guinea forums as well, giving you advice. I started the girls with a small amount of greens - cucumber and broccoli were favourites, cut into cubes. Give them this and see how they react and if there are any adverse reactions (!) as you don't want them getting the runs. Will they be going outside? Guineas love grass and dandelion leaves as well, but make sure initially this is for a reasonably short time, and build it up so their tummies get used to having it. Many eat such things as bananas, tomatoes, peppers, but basically anything green should get eaten quite quickly, and things like celery leaves, spinach, parsley, etc should perhaps be given in moderation to start with, just to see what they can tolerate. They will get very picky quite quickly, and can go off things as well. Have fun!
like Fernie our boys were lardy arsed adults fully grown when we got them. DD looks on Gumtree and Pets@Home to see if they have any babies like her pigs would have looked like. (The P@H often have agouti pigs like GP1 but rarely little JetBlacks like GP2. He's spesshull )
When I did have baby pigs as a child (home grown accidents) we gave little bits of everything. I tend to give morning and evening veg because they are most active eating at dusk/dawn. Pellets can be scoffed at anytime. Mine are relishing "Fruity Pellets" at the moment mixed in with their Burgess Excell.
There's loads of GP food lists on here lostproperty, give you some ideas. I'd just advice - make sure it's room temperature to avoid chilled tummies.
I got Fruity Pellets from The Range. "Country Value Fruity Pellets". I don't know how much fruit is in them but they smell like banana so I'm just putting maybe 20% of the pellet content then 80% Burgess Excell.
The bag is beige/orange with a photo of two smug tri-colours on the front (which is probably what attracted DD )