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猪子宫深部授精技术的研究应用进展

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摘要 猪人工授精技术是用人工的方法采集公猪的精液,经过检验、稀释、分装、保存、运输等一系列处理后,再将精液输入到发情母猪的生殖道内,以代替公母自然交配的一种配种方法。人工授精技术自上世纪50年代广泛应用生产以来,其输精材料先后由最初的胶皮半软管输精管发展到塑料硬管输精管,后来人们又发现堵住子宫颈时可以避免精液倒流,于是又在塑料硬管前设置了一个塑料膨胀囊[1]。这些技术改进,使猪人工授精的生产成绩已接近甚至优于自然交配的水平。本世纪初期,人们又研究出一种新的人工授精方法,即子宫深部输精法,以期望在达到较高受胎率及产仔数的同时,还能降低输精量,提高经济效益。子宫深部输精是指使用比常规输精管内部多一根细长软管的特制导管进行输精,当输精器外管堵头到达子宫颈并锁紧后,再将内管延长10~15cm,以通过子宫颈到达子宫体内或子宫颈前端接近子宫体的部位进行输精的一种方法。
出处 《猪业科学》 2014年第6期100-102,共3页 Swine Industry Science
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