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性成熟的公猪可以提供一系列的性刺激， 嗅觉刺激在其中发挥着主要的作用。
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信息素是一种外分泌性的化学因子， 可在同物种间触发社交反应。
数十年来，人们一直认为引起发情母猪产生性行为反应的公猪嗅觉物质仅
包含两种分子：雄烯酮和雄烯醇。最新的研究表明，公猪唾液中存在第三
种挥发性信息素分子，即喹啉。喹啉协同雄烯酮和雄烯醇一起，刺激发情母猪产生最大的性行为反应。
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性成熟公猪的唾液中会释放三种信息素分子。
这些分子会通过口鼻接触被母猪吸收。
信息素分子被吸入鼻腔后，会被鼻腔内的嗅觉上皮细胞上特定的受体识别吸收。
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嗅觉神经元会将化学信号转化成电波信号，并迅速传递至中枢神经系统。
不同嗅觉受体会特异性的识别对应的信息素分子。当三种信息素分子受体均识别到刺激时，则会产生最大的
性刺激信号发送给大脑。
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特定因素会影响公猪传递性刺激信号的能力，以使母猪表现出发情迹象，或者母猪自己对公猪的存在做出反应。这些风险会严重影响农场的繁育表现和盈利能力。
转至下一页，了解更多查情检测效果不佳带来的风险。
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REFERENCES: 1. Signoret & du Mesnil du Buisson. 1961. Etude du comportement de la truie en oestrus. IVth Congr. int. Reprod. Anim., La Haye, 171-5. 2. McGlone et al. 2019. A novel boar pheromone mixture induces sow estrus behaviors and reproductive success. Appl. Anim. Behav. Sci.;219:104832. 3. May Matthew. 2016. Use of solid-phase microextraction to detect semiochemicals in synthetic and biological systems. Master dissertation, Texas Tech University, 78p.
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J.C., Farm Manager, France
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