also: ひにゅう
noun
lactation; milk secretion
Technical term used in biology, medicine, and animal husbandry for the production and secretion of milk.
泌乳量は牛の健康状態によって変わる。
Milk yield varies depending on the cow's health.
泌乳期の母体には十分な栄養が必要だ。
Adequate nutrition is necessary for the mother during lactation.
Compound of 泌 (ひつ, 'ooze, secrete') and 乳 (にゅう, 'milk'). The reading ひつにゅう is standard; ひにゅう is a less common variant.