The animal's weight is
(mass) x (gravity)
= (0.05 kg) x (9.8 m/s²) = 0.49 newton.
That's the minimum force you can use to pick it up.
That's the force applied by the person to pick up the pig
at a nice gentle constant speed.
Then the net force on the pig is zero. The upward and downward
forces add up to zero, and that's why the animal is moving at a
constant speed, and not accelerating up or down.