怀孕母鹿在5月初就开始陆续产仔，母鹿能否正常产仔和仔鹿生后能否顺利健康成活，直接关系到鹿群的发展和养鹿的经济效益，因此掌握母鹿的怀孕天数和推算出母鹿的产仔日期，对于做好产前准备工作、及时观察母鹿的产前表现和产仔过程、做好产后仔鹿的护理等具有重要意义，更主要的是可做到心中有数。
Pregnant doe in early May began to litter, whether the normal calving and young deer after birth, whether a healthy and successful survival, is directly related to the development of deer and the economic benefits of deer, so grasp the number of days of the pregnancy of the doe And to calculate the date of farrow calving, do a good job of prenatal preparation, timely observation of the performance of prenatal and calving farrowing, postpartum deer child care do a good job, etc., is more important to do There are several.
茸鹿怀孕期的长短，与茸鹿的种类和类型、胎儿性别的数量、母鹿年龄、饲养方式和营养等因素有关。梅花鹿的怀孕期为229±6天；怀公羔时为231±5天，比怀母羔时的228±6天平均长3天，怀双胎时为224±6天，比怀单胎时短5天，头胎和壮龄鹿的怀孕期较短，老龄鹿较长，但是在前1—10胎间怀孕天数差异不明显。东北马鹿的怀孕期为：243±6天，天山马鹿为244±7天，东北梅花鹿的母鹿与东北马鹿公鹿杂交的后代(F1代)为225±7天，比东北梅花鹿公鹿与东北马鹿母鹿杂交的后代(F1代)的240±7天明显少15天，花马杂交的F1代，其怀孕期为218±5天，比怀单胎时的225±7天明显少7天。
Velvet deer pregnancy length, and deer deer type and type, the number of fetal sex, doe age, feeding methods and nutrition and other factors. Sika deer of the pregnancy was 229 ± 6 days; pregnant lamb when 231 ± 5 days, 228 ± 6 days than the pregnant mother lambs average length of 3 days, when the twins were 224 ± 6 days, Short 5 days, the first and the deer of the first trimester of pregnancy shorter, older deer longer, but the first 1-10 tires between the number of days of pregnancy was not obvious. (F1 generation) was 225 ± 7 days, compared with the northeast sika deer and the sika deer of the southeast deer were 244 ± 7 days, the northeast sika deer's deer was 244 ± 7 days, The progeny (F1 generation) progeny of the northeast red deer hybridization was significantly less than that in the 240 ± 7 days (P <0.05). The F1 hybrid of the F1 hybrid was 218 ± 5 days, which was significantly less than 225 ± 7 days 7 days.
母鹿预产期的推算并不难，只要把配种日期记录准确，就能推算出预产期。梅花鹿预产期的推算公式为：
It is not difficult to deduce the date of birth, as long as the breeding date of the record accurately, you can calculate the expected date of delivery. The prediction formula of expected date of sika deer is:
(1)月减5，日加23，如果日加23后的数值大于30，运算后，则日减30进月，余数为产仔日数。例如：10月13日配种的母鹿，其预产期应为下一年的6月[(10-5)+1]6日[(13+23)-30]。
(1) by 5 months, plus 23, if the day after the value of more than 30, after 30, the day reduced by 30 months, the remaining number of litter number of days. For example: October 13 breeding of the doe, the expected date of the next year should be June [(10-5) +1] 6 [(13 +23) -30].
(2)月减4，日减12，或减日11(怀公羔，或日减14(怀母羔)。马鹿预产期的推算公式为：月减4，日加1(东北马鹿)，或日加2(天山马鹿)。采用上述推算公式推算出的预产期准确率可达90%左右。
(2) the month by 4, by 12, or by 11 (pregnant lamb, or by 14 (pregnant mother lamb.) Red deer expected date of birth formula: month by 4, plus 1 (Northeast red deer) , Or day plus 2 (Tianshan red deer) .Using the above formula to calculate the expected date of birth rate of up to 90%.
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