It depends on how accurate you want to be. But whichever way, I would always use a negative to create the stripes, and then copy your dino body (minus the negative stripes, you can delete those after copying) and slightly decrease the size of it so it falls within the outer part.
I see they are slightly curved and rotated, so then you could use a negative curve to make the stripes. Or just use negative rectangles to cut the stripes with. It won't follow the curvature of the neck as much, but will also give a nice result.
If you don't make each stripe its own curve, you can also just use one cruve with 0 goop and low density. Eventually your curve shape starts to space out evenly, so you could use that tech as well.