猪人工授精新技术.ppt

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Oneortwolinesasneeded猪人工授精新技术
（美国南达科达州立大学供稿）TrainingBoarsforSemenCollection训练公猪进行采精TrainingBoars(con’t)公猪训练(续)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).Someboarsmaymountthedummyimmediatelybutothersmaywanttoexplorethepenanddummyforseveralsession.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。
Someboarsrequirecoaxing.Crouchdownnearthedummy,allowtheboartosmellyourhandandclothesandtalkinareassuringtone.Trypouringsemenfromapreviouscollectiononthedummy.对有些公猪需要哄骗。要在假母猪旁边蹲下，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。NewTechnologies新技术Reasonsfordevelopingnewlong-termboarsemenextenders研制长效公猪精液稀释剂的原因NewLong-TermExtenders新的长效稀释剂Intra-uterineInsemination子宫内输精Suggestedbeneficialaspectsofintra-uterinebodyAI:子宫体内输精的好处PercentageofsowsinseminatedthathavebackflowwithtraditionalAI传统输精法的精液回流情况Proportionoftotalvolume(80mL)thatwaslostduringandaftertraditionalAi
传统输精法总输精量80毫升中
输精中和输精后的损失比例8inchesUterusishostiletospermDeepIntra-uterineHornInsemination深部子宫角内输精FirFlex®Catheter
(PatentedbyUniversityofMurcia)
FirFlex®输精管(专利权Murcia大学)DNAdifferencesbetweenX-&Y-chromosome-bearingspermatozoaX精子和Y精子之间的差异Currentproblemswithsexingboarsemen:公猪精液性别化中的问题Stimulating/PrimingUterus刺激/敏化子宫Farrowingrateandnumberofpigletsbornaliveperlitterwhenoxytocinwasinjectedpriortoinseminatingwith“old”spermcells.用老精子输精前注射催产素时母猪的分娩率和窝产仔数AddingLutalysetoadoseofsemenincreasedfarrowingrateandlittersize在精液中加入律胎素可提高分娩率和窝产仔数MR-APredilincreasedfarrowingrateandlittersizeofgilts[Summaryofthreestudies]
合成精浆MR-APredil可提高分小母猪的娩率和窝产仔数(三个研究综述)
Matinggiltsatpubertywithavasectomizedboarincreasedfarrowingrate用输精管切除的公猪与初情期小母猪交配可提高分娩率Matinggiltsatpubertywithavasectomizedboarincreasedlittersize
用输精管切除的公猪与初情期小母猪交配可提高窝产仔数PregnancyDiagnosis妊娠诊断SynchronizationofEstrus同期发情