also: まやだし
noun
spring release of livestock to graze
Rare term referring to the traditional practice of letting livestock out of the stable in spring to graze freely.
昔は春になると厩出しを行い、牛や馬を野に放った。
Long ago, when spring came, they would perform umayadashi, releasing the cattle and horses into the fields.
Compound of 厩 (umaya, 'stable') and 出し (dashi, 'taking out'). The exact historical derivation is uncertain.