Bell F R, Dennis B, Sly J
Physiol Behav. 1979 Nov;23(5):919-24. doi: 10.1016/0031-9384(79)90201-4.
The importance of taste and smell in discrimination of sodium salts was examined in normal and anosmic sheep. To test for anosmia, faeces of pig, calf and sheep were used as noxious odours. Intact sheep, and sheep with one olfactory bulb removed avoided the aversive stimulus whereas following total bulbectomy, the faecal odour was no longer a deterrent. Olfactory bulbectomy did not affect food intake but changes in fluid intake, urinary loss and electrolyte excretion were apparent. In two-choice preference tests, normal sheep showed a marked aversion for 0.48 M NaHCO3 and 0.51 M NaCl when compared to water. Following either unilateral or bilateral olfactory bulbectomy the aversion for sodium salts persisted but was less extreme. This suggests that in the final discrimination of sodium salts the sense of taste is dominant but olfaction or the olfactory bulb may have a minor role.
研究了正常和嗅觉缺失绵羊中味觉和嗅觉在钠盐辨别中的重要性。为了测试嗅觉缺失，使用猪、小牛和绵羊的粪便作为有害气味。完整的绵羊以及摘除一个嗅球的绵羊会避开厌恶刺激，而在完全摘除嗅球后，粪便气味不再具有威慑作用。摘除嗅球不影响食物摄入量，但液体摄入量、尿液流失和电解质排泄明显改变。在双选偏好测试中，与水相比，正常绵羊对0.48M碳酸氢钠和0.51M氯化钠表现出明显的厌恶。单侧或双侧摘除嗅球后，对钠盐的厌恶仍然存在，但程度较轻。这表明在钠盐的最终辨别中，味觉起主导作用，但嗅觉或嗅球可能起次要作用。
