Giammanco S, Ernandes M, Paderni M A
Boll Soc Ital Biol Sper. 1989 Mar;65(3):211-7.
The aim of this research is to study the effects of different modalities of environment lighting on the appearance of the muricide behaviour in the Wistar male Rat. Indeed it is known that the exposition of Rats in environment to continuous light determine a reduction of the cerebral content of serotonin, which is known to unchain the muricide behaviour in naturally not muricide Rats. The animals are kept in different situations of environment lighting: 1) L/D = the natural light of the day alternated with the dark of the night; 2) L/L sodium = continuous light emitted by a sodium steam lamp; 3) L/L neon = continuous light issued from fluorescent neon tubes. The muricide behaviour is studied by comparison Rat-Mouse. The results obtained show that the continuous sodium steam light (L/L, sodium) remarkably increase the percentage of the animals which become muricide compared to the control animals bred in natural environment with a normal succession day-night (L/D). On the contrary the percentage is remarkably reduced compared to the control animals in Rats of the same group when these animals are exposed to continuous light issued from fluorescent neon tubes (L/L, neon).
本研究的目的是探讨不同环境光照模式对雄性Wistar大鼠杀鼠行为表现的影响。事实上，已知将大鼠置于持续光照的环境中会导致血清素脑含量降低，而血清素会引发原本不具有杀鼠行为的大鼠产生杀鼠行为。将动物置于不同的环境光照条件下：1）L/D = 白天自然光与夜晚黑暗交替；2）L/L钠灯 = 钠蒸汽灯发出的持续光照；3）L/L霓虹灯 = 荧光霓虹灯管发出的持续光照。通过大鼠与小鼠的比较来研究杀鼠行为。所得结果表明，与在自然环境中正常昼夜交替（L/D）饲养的对照动物相比，持续钠蒸汽光照（L/L，钠灯）显著增加了出现杀鼠行为的动物百分比。相反，当同一组大鼠暴露于荧光霓虹灯管发出的持续光照（L/L，霓虹灯）下时，与对照动物相比，这一百分比显著降低。
