林麝生殖生理和繁殖性能观察研究

在上海新杨养麝实验场,对1998～2003年饲养繁殖的林麝进行繁殖生理和繁殖性能的观察研究。结果表明,人工饲养条件下,林麝15～18月龄可达性成熟,性成熟时体重5～6kg,雌性性成熟比雄性早1～2个月;30～36月龄时可达体成熟,成龄林麝体重7～8kg。雌雄林麝繁殖特点均具有明显季节性,每年9月下旬开始发情,至次年3月下旬后逐渐进入休情期,雄林麝繁殖季节略早于雌林麝;雌林麝1个发情周期为18～23d,发情持续期32～48h,1年1胎,每胎1～3仔,妊娠期为178～183d,饲养林麝年平均繁殖率为152.05%,年断乳仔麝平均成活率为74.04%。

Study on reprodution physiology and repoduction performancein musk deer (Moschus berezovskii)

This study was carried out to investigate the reproduction physiology and reproductive performance of forest musk deer on the Shanghai Xinyang experimental farm of musk deer.The results showed that the age of sexual maturity is 15 to 18 months and with live weight of 5 to 6 kilogram under the musk farm conditions.The male musk will reach puberty 1 to 2 months later than that of the females.Mature body is attained in 30 to 36 months and the weight is 7-8 kilogram at this age.The female and male musk deer both exhibit a distinct breeding season from every year in September to March of the next year.The female musk occurs estrous later than the male during the breeding season.The length of estrous cycle averages 18 to 23 days and the duration time of estrous is 32 to 48 hours.Forest musk deer has one pregnancy and bear 1 to 3 offsprings annually.The pregnant period averages between 178 and 183 days.The annual reproductive rates and survival rats were 152.05%,74.04%,respectively.