Hulsey T K, Palotay J L, Dhindsa D S
Biol Neonate. 1975;27(3-4):177-83. doi: 10.1159/000240774.
This study describes the postnatal growth and development of the opossum (Didelphis virginiana). Measurements were made weekly on 6 young opossums between 50 and 189 days following birth. These measurements included: total length, length of ear and tail, and length of front and rear appendages. Body weight measurements were extended to 233 days. The mean body weight at 50 days was 14.1 g, which increased rapidly to 2,560 g at 233 days.
本研究描述了负鼠（弗吉尼亚负鼠）出生后的生长和发育情况。在6只幼负鼠出生后50至189天期间每周进行测量。这些测量包括：全长、耳长、尾长以及前后肢长度。体重测量延长至233天。50天时的平均体重为14.1克，到233天时迅速增加至2560克。
