猪人工授精新技术

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1、TitleGoesHereOneortwolinesasneeded猪人工授精新技术（美国南达科达州立大学供稿）施学仕博士美国大豆协会-国际项目上海代表处TrainingBoarsforSemenCollection训练公猪进行采精Selectapersonwhoispatientandenjoysworkingwithanimals.选择一个有耐心并乐于与动物相处的人Begintrainingduringtheisolationprocessbybuildingatrustbetweenyouandtheboar.Spendafewminuteseachdayscratchin

2、g,rubbingandtalkingwiththeboar.训练开始于隔离过程中，这时要在操作者和公猪之间建立信任，每天花几分钟对公猪抓痒、擦拭和“对话”Boarsvaryintheirrateofsexualdevelopment.Some7mooldboarsarereadytobetrainedandothersrequire4-6wkslonger.不同公猪的性成熟速度各异，有些7月龄的公猪就可投入训练，而另一些可能要晚4～6周才行。TrainingBoars(con’t)公猪训练(续)Provideaclean,dry,welllightedareafreeofdis

3、tractions.Abreedingmathelpsprovidefooting.Aboarthatslipsduringmountingmaybeshyaboutattemptingitagain.训练场地应该清洁、干燥、光照良好且无干扰。地上铺上一个防滑垫可有助于公猪站稳，公猪在爬跨时滑倒会羞于再次爬跨。Keeptheareaabout8x10ft,sothattheboarisfocused.训练区域大小应在8×10英尺左右，以便公猪能够集中精力。Ifpossible,collectapreviouslytrainedboarfirst.Theodorandsoundma

4、ystimulatethe“rookie”ifheislocatednexttothecollectionarea.如有可能,先对先前接受了训练的公猪采精。令新公猪站在近旁,采精时的气味和声响会对新公猪产生刺激Adjustthedummysothatitisequaltoorslightlylowerthantheboarbeingtrained.调整假母猪的高度，使其等于或略高于训练公猪的高度。Planforshorttrainingsessions(15-20min).Someboarsmaymountthedummyimmediatelybutothersmaywantto

5、explorethepenanddummyforseveralsession.每次训练时间应该短些(15~20分钟)。有些公猪会立即爬跨假母猪，而有些公猪在开始几次训练中只是探究猪圈和假母猪。TrainingBoars(con’t)公猪训练(续)Someboarsrequirecoaxing.Crouchdownnearthedummy,allowtheboartosmellyourhandandclothesandtalkinareassuringtone.Trypouringsemenfromapreviouscollectiononthedummy.对有些公猪需要哄骗。要在

6、假母猪旁边蹲下，让公猪嗅闻你的手和衣服，采用使公猪安定的声调召唤公猪。Keeptheboarfocusedonthedummy.Ifneeded,usewingedgatestokeephiminfrontofthedummy.要使公猪集中关注假母猪。需要时可用wingedgate使公猪呆在假母猪的前面。TrainingBoars(con’t)公猪训练(续)NewTechnologies新技术Boarsemenextenders公猪精液稀释剂Intra-uterineInsemination子宫内输精Sexingofboarsemen公猪精液性别化Cloningandembryo

7、transfer克隆和胚胎移植Reasonsfordevelopingnewlong-termboarsemenextenders研制长效公猪精液稀释剂的原因Morefavorableworkhoursinboarstud增加人工授精站的有效工时Reductionoreliminationofweekendcollections减少或避免周末采精Reducedtransportationcostofsemen降低精液运输成本TestingofsemenforPRRSbefores