| 中文名稱 | 母牛，母羊，母豬及母馬懷孕期過長 |
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| 英文名稱 | Prolonged gestation in cows, ewes, sows, and mares |
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| 建立日期 | 2007/11/01 |
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| 更新日期 | 2007/11/01 |
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| 中文描述 | 懷孕期過長是乳牛最常見得情形而豬跟羊也同樣被證實有這種情形。多數的例子相信是由於有時不是很經常的胎兒不正常。馬兒會發生懷孕期超過一年的情形，甚至是雙胞胎。大部分的馬兒都是正常的體型且不需要太多的照料。 |
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| 英文描述 | Prolonged gestation occurs in most of the common dairy breeds of cattle and also has been reported in pigs and sheep. Most cases are believed to be genetic and are sometimes, although not always, associated with fetal anomalies. Prolonged gestation of over 1 year can occur in horses, even in horses with twins. Most of the foals are of normal size and treatment is unnecessary. |
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