noun
milk yield; milk production
Technical term used in dairy farming and animal science to refer to the amount of milk produced by an animal over a given period.
この品種の牛は泌乳量が多い。
This breed of cow has a high milk yield.
泌乳量を増やすためには、栄養管理が重要だ。
Nutritional management is important to increase milk production.
搾乳量 refers to the amount of milk actually obtained by milking, whereas 泌乳量 is the total milk produced by the animal.
Compound of 泌乳 (ひつにゅう, 'milk secretion') and 量 (りょう, 'amount').