how do we feed the pig with its proper measurement........starting from piglet to sow and also what vaccine do we have to give them and in what day, weeks or month. tnx.
the proper measurement of feeding.

It depends on the recommendation of the feed manufacturer. Every feed manufacturer have a feeding program that you should follow.

As a rule of thumb give first small quantities. If they can easily finish it then give again.
As long as they want to eat then give them feeds.

To give you an idea:

This is taken from the pamphlet of ACE FEEDS feeding program

Type of feeds booster pre starter starter grower finisher

age of animal 6-35 36-60 61-90 91-120 121-up to market

kg of feed per day 0.10 0.60 1.20 2.2 2.8

it depend also on what breed are you feeding