Sounds to me like she’s wanting a boyfriend which means she’s wanting to mate so I’d say eggs will come probably in April. Congrats on them putting themselves to bed! That’s always nice!
Here is info and Penicillin is on the list at the very bottom. If this duck has an infection I don't think this will do anything to help. https://www.backyardchickens.com/articles/antibiotic-article-from-a-dog-blog.73452/
I’d keep up the b complex it won’t hurt. And the support may help over time. With this most likely going on for a while it may take a while to see improvement. Do you happen to have any antibiotics and or meloxicam left over from other pets or yourself?
Probably not completely but hopefully enough he can get around better. But don’t get discouraged. Also swimming will help build leg muscles too. Just make a way from them to get In an out of the pool safely don’t want to hurt those legs any more than they are.
I wouldn’t till they lay the first egg or at least 4 months old. So just hold off on oyster shell too until then. My ducks eat layer but I still offer oyster shell.
Okay so not the best diet bro wonder they are over weight just feed flock raiser and give greens for snack if you can give them shredded romaine lettuce it’s good for them and is not fattening you can even put the 1 ml liquid b complex over it so it doesn’t get watered down putting it in their...
Looks like bumble. Soak in warm Epsom salt water to soften the scabs apply some tripe antibiotic ointment and just keep doing this till you can get those scans soft enough to pull off. Bumble is staff infection so it’s important you take care of this ASAP. They all look good though. Is that foot...