This creation is the pig artificial insemination chock plug and insemination tube that one kind prevents sperm adverse current,Chock plug include an ontology,One guidance unit and a stopper unit,Ontology has a joining hole and an injection orifice at position what both ends,Guidance unit sets what ontology and includes the guiding wing of the neighbouring injection orifice of plural number,Stopper unit sets at least baffle that ontology includes neighbouring joining hole,Insemination tube includes the chock plug and a tube body,Tube body includes a pipe shaft and a connector sleeve,Connector sleeve and chock plug set what pipe shaft both ends,This creation prevents the pig artificial insemination of sperm adverse current close by guidance flapwise ontology with chock plug and ontology is allowed to be easy to protrude into uterus,And stopper unit is popped up against cervix backstop sperm adverse current and insemination tube,Insemination success rate is promoted,Connector sleeve and pipe shaft, which can hold and push away, helps chock plug to protrude into,Accessory pollination operation.本創作係一種防止精液逆流之豬隻人工授精用塞頭及授精管，塞頭包含一本體、一引導單元及一止擋單元，本體具有位於兩端的一組接孔及一注射孔，引導單元設於本體並包含複數鄰近注射孔的引導翼，止擋單元設於本體包含鄰近組接孔的至少一擋片，授精管包含該塞頭及一管體，管體包含一管身及一連接套，連接套與塞頭設於管身兩端，本創作防止精液逆流之豬隻人工授精用塞頭藉由引導翼向本體靠近而讓本體容易伸入子宮，且止擋單元抵靠子宮頸止擋精液逆流及授精管彈出，提升授精成功率，連接套及管身能握持並推助塞頭伸入，輔助授精作業。
