猪人工授精新的技术.ppt

Title Goes Here One or two lines as needed;猪人工授精新技术 （美国南达科达州立大学供稿）;Training Boars for Semen Collection训练公猪进行采精;Training Boars (con’t)公猪训练(续);Adjust the dummyso that it is equal to or slightly lower than the boar being trained.调整假母猪的高度，使其等于或略高于训练公猪的高度。 Plan for short training sessions (15 -20 min). Some boars may mount the dummy immediately but others may want to explore the pen and dummy for several session.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。 ;Some boars require coaxing. Crouchdown near the dummy, allow the boar to smell your hand and clothes and talk in a reassuring tone. Try pouring semen from a previous collection on the dummy.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。 Keep the boar focused on the dummy. If needed, use winged gates to keep him in front of the dummy.要使公猪集中关注假母猪。需要时可用winged gate使公猪呆在假母猪的前面。;New Technologies新技术;Reasons for developing new long-term boar semen extenders研制长效公猪精液稀释剂的原因;New Long-Term Extenders新的长效稀释剂;Intra-uterine Insemination子宫内输精;Suggested beneficial aspects of intra-uterine body AI:子宫体内输精的好处;Percentage of sows inseminated that have backflow with traditional AI传统输精法的精液回流情况;Proportion of total volume (80 mL) that was lost during and after traditional Ai 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;8 inches;Uterus is hostile to sperm;Deep Intra-uterine Horn Insemination深部子宫角内输精;FirFlex? Catheter (Patented by University of Murcia) FirFlex?输精管(专利权Murcia大学);DNA differences between X- Y-chromosome-bearingspermatozoaX精子和Y精子之间的差异;Current problems with sexing boar semen:公猪精液性别化中的问题;Stimulating/Priming Uterus刺激/敏化子宫;Farrowing rate and number of piglets born alive per litter when oxytocin was injected prior to inseminating with “old” sperm cells.用老精子输精前注射催产素时母猪的分娩率和窝产仔数;Adding Lutalyse to a dose of semen increased farrowing rate and litter size在精液中加入律胎素可提高分娩率和窝产仔数;MR-A Predil increased farrowing rate and litter size of gilts[Summary of three studies] 合成精浆MR-A Predil可提高分小母猪的娩率和窝产仔数(三个研究综述) ;Mating gilts at puberty with a