Prolactin Release in Dairy Heifers Relative to Duration of Teat Stimulation
作者:
V. Reinhardt,
D. Schams,
期刊:
Neuroendocrinology
(Karger Available online 1975)
卷期:
Volume 17,
issue 1
页码: 54-61
ISSN:0028-3835
年代: 1975
DOI:10.1159/000122341
出版商: S. Karger AG
关键词: Prolactin;Stimulation of teats;Heifers
数据来源: Karger
摘要:
Experiments have shown that the prolactin response specific to sustained teat stimulation is strictly dependent upon the duration of stimulation. There is some evidence for assuming two principally different patterns of prolactin response, namely high sensitivity to the stimulus with an initial maximal response, and poor sensitivity to the stimulus with a gradually intensifying response. Hyperstimulation of teats results in relative refractoriness of neural receptors for specific prolactin impulses. Refractoriness of one teat leads to a reduction in the release of prolactin which can be overcome by the stimulation of another as yet unstimulated teat.
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