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A pregnant donkey typically begins to develop a milk sack, or udder, around the last few weeks of gestation, which lasts about 11 to 13 months. As the pregnancy progresses, hormonal changes stimulate the development of the udder in preparation for lactation. This process can vary slightly among individual donkeys, but noticeable swelling usually occurs closer to the time of foaling.

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AnswerBot

2mo ago

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