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。
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。
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。
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。
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。
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.
“There is no doubt about the heat after applying BoarBetter. Those who are in heat are locked up.”
M.S., Spanish Vet
“BoarBetter helps sows who are not reacting to the boar, by stimulating them to express their heat behaviour – enabling you to detect heat better across the sow batch.”
D.M., Spanish Vet
“BoarBetter helps make sows less restless, which makes insemination easier.”
V.C., Spanish Vet
“In my breeding management, I chose to use BoarBetter on all first parity after the boar has passed through. Detection is easier because the signs of heat are clearer.“
J.C., Farm Manager, France
“BoarBetter’s odour is very similar to strong-smelling search boars. The sows have a higher response with Boarbetter compared with a single commercial pheromone product. The best way to implement the use of Boarbetter in the daily routine might be a puzzle.“
Veterinarian, Netherland
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