母梅花鹿性成熟期一般在生后16个月龄以后，初配适龄为28个月龄。公鹿为40个月龄。发情规律有以下几点：
Mature sika deer sexual maturity is generally in the post-natal 16 months of age, the initial match age is 28 months of age. The bucks are 40 months old. Oestrus law has the following points:
发情期：梅花鹿的正常发情交配期为9月15日～11月15日两个月，旺期为9月25日～10月25日约一个月时间。在整个发情交配期里，可经历3～5个发情周期。
Estrus: sika deer of normal estrus mating period is September 15 ~ November 15 two months, Mong period for September 25 ~ October 25 about a month. Throughout the estrus mating period, can experience 3 to 5 estrus cycle.
发情高峰日的发情率：在第一个发情期里，发情高峰日的发情率为11％～15％。由于地理、气候因素的影响，个别年景发情交配日期可提前或延后7～15天。
Estrus rate at the peak estrus: In the first estrus, the estrus peak of estrus rate of 11% to 15%. Due to geographical and climatic factors, the individual date of estrus mating date can be advanced or delayed 7 to 15 days.
发情周期：在发情季节里，每经过一定的间隙时间出现1次发情现象，即相邻两次排卵的间隙时间视为发情周期。梅花鹿一般为12～16天。健康、壮龄、体膘好的发情周期稍短，老龄和体膘差的稍长。
Estrus cycle: in the estrus season, after a certain gap time 1 estrus phenomenon occurs, that is, the interval between two adjacent ovulation estrus cycle. Sika deer is generally 12 to 16 days. Health, age, body fat good estrous cycle is shorter, aging and body fat difference is slightly longer.
发情持续时间：发情持续时间是指母鹿在每次发情时持续的一段时间。该段时间又分为初期、盛期和末期。其中，盛期指母鹿性欲亢进并接受交配的一段时间。梅花鹿的发情持续时间一般为24～36小时，发情11～12个小时进入盛期。一般有90％左右的母鹿是在发情盛期接受交配的，此期交配的受孕率在95％左右。发情的初期和末期，母鹿一般都拒绝交配。对于初配母鹿的追配和老弱鹿的强配，以及趁母鹿只顾采食草料时的偷配，均属不正常的交配。
Estrus duration: The duration of the estrus is the period of time the doe lasts at each estrus. The time is divided into initial, peak and end. Among them, the peak refers to the sexual activity of hives and accept mating for some time. Sika deer estrus duration is generally 24 to 36 hours, estrus 11 to 12 hours into the peak period. Generally about 90% of the doe is in the heat of mating, the mating of the pregnancy rate of about 95%. At the beginning and end of estrus, doe generally refuse to mate. For the early allocation of deer with the old and the deer with the strong distribution, and to take advantage of the feed when the deer stole with feed, are not normal mating.
产后第一次发情：梅花鹿一般为130～140天。个别在8～9月份，甚至10月初产仔的健康壮龄母鹿，如果仔鹿死亡或断乳，仍可在11月15日以前发情、受配、妊娠。
Postpartum first estrus: deer generally 130 to 140 days. Individual 8 to 9 months, or even early October, the health of the healthy age of the doe deer, if the young deer dead or weaned, can still be in the November 15 before estrus, by allocation, pregnancy.
异常发情：梅花鹿有间歇1～6天发情的，约占4％；有安静状态下发情（即隐性发情）的，约占1％，多见于配种初期和初配的青年母鹿；也有短促发情和孕后发情的。
Abnormal heat: sika deer intermittent 1 to 6 days of estrus, accounting for about 4%; a quiet state estrus (ie, recessive estrus), accounting for about 1%, more common in early breeding and early allocation of young doe; Estrus and post-pregnancy estrus.
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