How can you explain that the intestinal tract of the lynx is much shorter than that of the domestic goat?

The lynx is a predator. Eats meat. Goat as we know it is herbivore. It feeds on grass. Grass is a tough, coarse food with a lot of hard fibers. Therefore, it is absorbed much harder and longer than meat. In order to properly break down the grass and extract nutrients from it, it is necessary that it stays in the intestines longer and is processed there longer. That is, the long intestine of a goat is intended for the full digestion of the grass that it feeds on.