Rummer H J, Elze K
Arch Exp Veterinarmed. 1980;34(4):515-26.
Uterus tissue samples were taken from 31 sows which had been under regimes of extremely shortened nursing periods and differentiated medication to control their puerperium. The samples were taken following laparotomy during the first postpartum oestrus as well as in subsequent phases of the cycle and histologically tested for puerperal involution and regeneration. The endometrium and myometrium of sows in oestrus were found to be in a condition which widely corresponded to normal oestrus condition of the uterus wall, when their piglets had been weaned in the third postpartum week. However, untreated sows in oestrus, whose piglets had been weaned extremely soon, that is in the second postpartum week, displayed numerous signs of inadequate postpartum involution and regeneration. Oxytocin was found to work well in speeding up regeneration of both the endometrium and myometrium. Intramuscular injection of twice nine International Units per die, from the first through ninth days postpartum, helped to complete largely all regeneration processes up to the first oestrus, when piglets had been weaned in the second postpartum week. Oral antibiotic medication (chlortetracycline) and parenteral application of vitamins failed to produce any substantive and histologically recordable effect on puerperal involution processes.
从31头母猪身上采集子宫组织样本，这些母猪处于极短哺乳期和不同药物治疗方案下以控制产褥期。样本在产后第一次发情期剖腹手术时以及随后的周期阶段采集，并进行组织学检查以检测产褥期 involution 和再生情况。当仔猪在产后第三周断奶时，发情期母猪的子宫内膜和肌层状况与子宫壁正常发情期状况广泛相符。然而，仔猪在产后极早即第二周断奶的未治疗发情期母猪，表现出许多产后 involution 和再生不足的迹象。发现催产素在加速子宫内膜和肌层再生方面效果良好。从产后第一天到第九天，每天肌肉注射两次，每次9国际单位，有助于在仔猪于产后第二周断奶时，在很大程度上完成直至第一次发情期的所有再生过程。口服抗生素药物（金霉素）和肠胃外应用维生素对产褥期 involution 过程未产生任何实质性的、可组织学记录的效果。
