Peppler R D, Stone S C
Lab Anim Sci. 1980 Apr;30(2 Pt 1):188-91.
Blood samples were obtained weekly from 21 pregnant armadillos during the months of June through May and analyzed by radioimmunoassay for progesterone concentration. Following ovulation and mating, the plasma concentration of progesterone remained elevated (greater than 13 ng/ml) during the 3.5 months of delayed implantation. As implantation occurred in October, the plasma concentration of progesterone increased and remained at approximately 20 ng/ml in all animals through March. Ten of the animals delivered during March and April in captivity. The date of the blood sample collection was calculated as the number of days before or after parturition. Progesterone concentration was not decreased prior to delivery and remained elevated for as long as 55 days following parturition.
在6月至次年5月期间，每周从21只怀孕的犰狳身上采集血样，并通过放射免疫分析法分析孕酮浓度。排卵和交配后，在3.5个月的延迟着床期内，孕酮的血浆浓度一直保持在较高水平（大于13纳克/毫升）。随着10月着床的发生，孕酮的血浆浓度升高，并且在所有动物中一直保持在约20纳克/毫升，直至次年3月。其中10只动物于3月和4月在圈养环境中分娩。血样采集日期计算为分娩前或分娩后的天数。分娩前孕酮浓度并未降低，并且在分娩后长达55天内一直保持在较高水平。
