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In sheep, both beta (β)-endorphin (1 and 2 μg kg -1 ) and gamma (γ)-endorphin (2 μg kg -1 ) administered into the third cerebral ventricle caused a significant depression of rumen motility. The amplitude of the first rumen contraction appearing immediately after the end of infusion was diminished and the average amplitude of primary rumen contractions was decreased. In...
Domański, Ś., Przekop, F., Chomicka, L. and Ostrowska, A.: Effect of stress on the course of oestrous cycle and the release of luteinizing hormone; the role of endorphin in these processes. Acta physiol. pol., 1989, 40 (1); 64-73. It has been postulated that stress induces discoirelafions of the hypothalamoHpituitary and pituitary gonadal axis. In our experiments on the effect of stress on the reproductive...
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