What can livestock eat that humans can't?

Livestock can consume a variety of feedstuffs that are not suitable for human consumption, such as certain types of grasses, hay, silage, and agricultural byproducts like corn husks and soybean meal. Additionally, ruminants like cows can digest cellulose from plant materials due to their specialized stomachs and microbial fermentation processes. This allows them to derive nutrients from fibrous plants that humans cannot effectively digest. Moreover, livestock can also eat certain food scraps and waste products that may be unsafe or unpalatable for humans.