Lactation is the final phase of the reproductive cycle of mammals. 泌乳是哺乳動(dòng)物繁殖周期的最后階段。
This is particularly a problem for first litters gilts which typically have low lactation feed intakes. 對于初產(chǎn)母豬來(lái)講這尤其是個(gè)問(wèn)題,因為它們在泌乳時(shí)采食量很低。