WhatIsThatMovie

So I'm from Poland and I remember that when I was maybe 7 yo, I watched some odd animation on TV . The film itself looked like from the 80s or maybe 90s, the characters were drawn in colours contrasting with the brown and navy blue background, I remember that. There was something about Noah's Ark in it, a large wooden ship sailed for many days across the seas, there were talking animals and a boy. I remember feeling uncomfortable watching it, but the worst was the scene where a lion was very hungry and the boy decided to cut off a goat's leg to feed him, and before that he injected something into the goat. I even remember a little what this scene looked like, all the animals were standing around a white, crying, panicking and screaming goat, and then I felt sick and turned it off. I couldn't find anything similar anywhere, but I shared the story with a friend and he said he remembered something like that too. o_O What the hell could it be?