Effects of photoperiod, melatonin administration and thyroid block on spontaneous daily torpor and temperature regulation in the white-footed mouse,Peromyscus leucopus

Effects of 18 weeks of daily melatonin i

Effects of 18 weeks of daily melatonin injection on reproduction and temperature regulation in the mouse,Peromyscus leucopus

✍ Heath, Harley W. ;Lynch, G. Robert 📂 Article 📅 1981 🏛 John Wiley and Sons 🌐 English ⚖ 246 KB

## Abstract Mice injected daily with 50 μg of melatonin, 12 hr after lights on, for 18 weeks, underwent gonadal regression after 4–7 weeks and reproductive recrudescence after 15 weeks. Most treated animals molted to a winter pelt after 9–11 weeks of injections, and 2 of the 10 mice experienced bou