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Different Neuroendocrine Systems Modulate Pulsatile Luteinizing Hormone Secretion in Photosuppressed and Photorefractory Ewes1
1992
Biology of Reproduction
Preserved Fulltext
The objective of this study was to determine whether two photoperiod regimens that induce anestrus in the ewe-shortday photorefractoriness (SDPR) and long-day photosuppression (LDPS)-act by different neuronal mechanisms. In separate experiments, ovary-intact (INTACT), ovariectomized (OVX), and ovariectomized estradiol-treated (OVX + E) ewes were subjected to three different photoperiodic regimens that resulted in reproductive quiescence: (1) exposure to long days (161.: 80), which caused
doi:10.1095/biolreprod46.3.425
pmid:1617016
fatcat:nbqjqtubhbaulnnwdd5zp73zyi