Congratulations on your piglets

1. You don't want to register
all your litter. What you need to do is 'birth notify' them. Only register the very best piglets which meet the breed standard (and I'd only do it when you sell them or start to show/breed them) You can still produce meat certificates for birth notified piglets using the BPA website.
2. We notch at around 7 - 10 days old, when they are still young and small enough to be easily held. Sharp notchers, a can of purple or anti-biotic spray and your notching chart & pen & paper to record everything are the tools you'll need. You only take a tiny notch (less than 5mm) and they heal in no time without any kind of bloodloss. We start with the boars first then move on to the gilts.
3. Yes, the numbering continues - we had Large Blacks numbering 1 - 21 and OSB's numbering 22 - 28 - it just keeps going and you note the notch number and ear tag number on the registration form for any pigs that you do register. Although young pigs don't need tags to move between holdings and you might not want to tag meat weaners, it's definately worth putting the tags in (to any that will be registered) at the same time as you notch - going back 6 months later to try and figure out who's who, then apply tags then when you've got bigger, faster pigs that you can't pick up and restrain isn't easy (trust me - I
know

)
HTH
Karen