Some animals, such as deer, goat and pig, are the food that are eaten by lion, tiger and other predators in the food chain of nature.

鹿、羊、山猪等动物在食物链中，就是作为狮子、老虎、花豹等掠食性动物的财富。

youdao

Specifically, large prey such as Samba deer and wild pig that the tigers need to survive and that the people are killing not just for their own survival, because that would be acceptable, but actually for the commercial market.

NPR: Q&A: Conservationist Alan Rabinowitz