Downey B R
Can Vet J. 1980 Nov;21(11):301-6.
Neuroendocrine and endocrine factors involved in the regulation of reproductive cycles in domestic animals are discussed. Although research data from many species are considered, emphasis is placed on their relevance for the cow, sow, ewe and, to a lesser extent, the mare. Literature cited is not designed to be complete, but rather to be representative of the large volume of material which has been written on the subject.Gonadotropin-releasing hormone is synthesized and secreted in response to various exteroceptive stimuli, but both its release and its effects on the anterior pituitary are modified by feedback of target gland hormones. A modulating role for nonsteroidal regulators such as inhibin has yet to be proven. Prostaglandins are important for corpus luteum regression and ovulation. The relative roles of the gonadotropins and the above substances in hypothalamic, adenohypophyseal and ovarian function are considered. General mention is made of mechanisms of hormonal action.
本文讨论了参与家畜生殖周期调节的神经内分泌和内分泌因素。尽管考虑了许多物种的研究数据，但重点是它们与奶牛、母猪、母羊以及在较小程度上与母马的相关性。所引用的文献并非旨在完整无缺，而是旨在代表关于该主题已撰写的大量材料。促性腺激素释放激素是在各种外感受性刺激的作用下合成和分泌的，但其释放及其对垂体前叶的作用都受到靶腺激素反馈的调节。抑制素等非甾体调节剂的调节作用尚未得到证实。前列腺素对黄体退化和排卵很重要。文中考虑了促性腺激素和上述物质在下丘脑、腺垂体和卵巢功能中的相对作用。还一般性地提及了激素作用的机制。
