Sougen no Ko Tenguri
Genres: Adventure, Drama
Type: Movie, Episodes: 1
Aired: 1977
Studio: Shin-Ei Animation
Source: Original
Rating: G - All Ages
Synopsis:
The story surrounds a boy and a cow who have always lived their lives together. One winter, a famine strikes their village. The villagers resolve to the cow, but the boy secretly helped the cow escape. A few years ago, the boy (now grown-up) and the cow meet again...

(Source: AniDB)