The ontogeny of salt preference in rats.
The ontogeny of salt preference in rats.
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大鼠盐偏好的个体发育。
DOI:
10.1002/dev.420190305
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发表时间:
1986
影响因子:
2.2
通讯作者:
Moe,KE
中科院分区:
文献类型:
--
作者:
Moe,KE
Many mammals eat salt irrespective of need. This behavior, called salt preference or appetite, is studied primarily in adults. Little is known about its ontogeny. In these experiments, 3–18‐day‐old rat pups were offered saline, quinine, or ammonium chloride solutions by infusion through an anterior oral catheter, and intake was measured. At 6–18 days, pups showed the inverted U‐shaped preference‐aversion curve for NaCl that is characteristic of adult rats. Thus, rats express a preference for salt at a very early age. However, the curves were broader than the typical adult curve and were shifted along the concentration gradient in an age‐related fashion. Consumption of quinine and ammonium chloride showed similar age‐related changes. These changes may reflect the postnatal timing of the development of the rat gustatory system.