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牛发情周期的激素调节

中国牦牛 1987年第3期 59-62+58页

作者： a.r.peters 陈莉

二、药理机制在一定授精期实现控制家畜排卵而获得高度授精率是完全可能的。但目前还不能达到;这因为有一些控制排卵的论文在重复应用上还有些问题。卵巢和内分泌的主要效应如图1所示,

关键词：发情周期人工授精波动排卵前 LH PG 受精率受精繁殖性能成年母牛促孕激素

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母牛产犊后卵巢功能的内分泌调节

国外畜牧科技 1986年第6期 13-16页

作者： a.r.peters 黄少华

一年产一胎的母牛,一般是在产犊后85天怀孕并维持妊娠,而在此之前至少有一次正常的排卵。最近的研究结果表明,百分之九十五的奶牛在产犊后50天就已经恢复卵巢周期,而哺乳肉牛只有百分之四十恢复卵巢周期。延期排卵可视为母牛生存所必需... 详细信息

一年产一胎的母牛,一般是在产犊后85天怀孕并维持妊娠,而在此之前至少有一次正常的排卵。最近的研究结果表明,百分之九十五的奶牛在产犊后50天就已经恢复卵巢周期,而哺乳肉牛只有百分之四十恢复卵巢周期。延期排卵可视为母牛生存所必需。近年来,家畜繁殖科技人员试图用激素如HCG

关键词：母牛奶牛 FSH LH 产犊 GnrH 卵巢功能

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牛发情周期的激素调节一、自然周期

中国牦牛 1987年第1期 44-51页

作者： a.r.peters 张学舜

详细了解卵巢周期的内激素调节对药物处理的设计应用具有极为重要的作用。本文主要回顾了当代对乳牛卵巢机能调节的理解和认识,在适当的地方也涉及到一些其它种牲畜的情况。

关键词：激素调节血浆高潮情节 FSH 黄体期发情周期 LHrH 排卵前 GnrH 雄性激素卵巢动脉黄体溶解波动幅度

母牛产后的生殖活动——内分泌类型和排卵诱导

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草食家畜 1985年第4期 16-18页

作者： a.r.peters 朱国平

产后乏情期的长短,受各种因素的影响,尤其受营养状况、季节、哺乳和奶产量的影响。这些环境因子对生殖系统的抑制作用是通过内分泌系统传导的,可能是通过共同的最终机制传递的。用激素处理使家畜

关键词：母牛排卵诱导催乳素 rH 促乳素卵巢周期黄体化

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β-兴奋剂提高养猪生产效率的作用

国外畜牧科技 1991年第3期18卷 29-33页

作者： a.r.peters 郭年藩

前言长期以来,增重速度和饲料转化效率一直是衡量家畜生产性能的主要指标。然而,由于多种原因,现已转向日益重视家畜胴体成分。首先,家畜体内脂肪沉积效率低于肌肉蛋白质沉积的效率,因此,单位增重需能较多;其次。

关键词：猪饲养生产率 β-兴奋剂饲料

用前列腺素F2α类似物tiaprost溶解母牛黄体及效果检测法

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湖南农学院学报 1985年第2期 54-54页

作者： a·r·peters 盛忠梅

本文报道了用前列腺素F2α类似物tiaprost母牛黄体溶解及其效力检测方法,介绍了治疗量tiaprost对内源性性激素的影响。做了两个实验。实验Ⅰ用13头卵巢黄体生成中期的母牛,皮下注射tiaprost0.75毫克。由颈静脉采血分析了10头牛的血样... 详细信息

本文报道了用前列腺素F2α类似物tiaprost母牛黄体溶解及其效力检测方法,介绍了治疗量tiaprost对内源性性激素的影响。做了两个实验。实验Ⅰ用13头卵巢黄体生成中期的母牛,皮下注射tiaprost0.75毫克。由颈静脉采血分析了10头牛的血样品。处理前4小时,每小时采血一次;处理后每2小时采血一次,每头牛采3次血样品。实验Ⅱ用15头母牛,分三个组,1组（3头）用含30毫克tia-prost的微型泵透入法给药,24小时逐步释放出0.75毫克tiaprost;2组（6头）皮下注射0.375毫克tiaprost加用含30毫克tiaprost微型泵皮下透入给药;3组（9头）皮下注射0.375毫克

关键词：前列腺素 tiaprost 效果检测类似物颈静脉采血透入内源 Prost 卵泡刺激素耳根部

Critiquing and Joining Intersections of Disaster,Conflict,and Peace research

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International Journal of Disaster risk Science 2020年第5期11卷 555-567页

作者： Laura E.r.peters Ilan Kelman College of Earth.Ocean and Atmospheric SciencesOregon State UniversityCorvallis.OR 97331USA Institute for risk and Disaster reduction and Institute for Global HealthUniversity College LondonLondon WC1E 6BT.UK University of Agder.4630 Kristiansand Norway

Disaster research,conflict research,and peace research have rich and deep histories,yet they do not always fully intersect or learn from each other,even when they investigate if and how disasters lead to conflict or *** has tended to focus on investigating causal linkages between disaster(including those associated with climate change)and conflict,and disaster diplomacy emerged as a thread of explanatory research that investigates how and why disaster-related activities do and do not in fluence peace and ***,definitive conclusions on the disaster-conflict-peace nexus have evaded scientific consensus,in part due to conceptual,methodological,and interpretive differences among *** article highlights that this nexus would benefit from a more robust engagement with each field's foundational research that explores beyond binary and crude *** are concepts of destructive and constructive conflict;direct,structural,and cultural violence,and their relationships to vulnerability;negative and positive peace;and the ideals and realities of peacebuilding and conflict *** article demonstrates how integrated scholarship could open up and advance new lines of questioning,with implications for developing cohere nt research,policy,and *** article concludes by offering recommendations for how to better connect disaster,conflict,and peace research.

关键词： Climate change Conflict research Disaster diplomacy Disaster risk reduction Peace research

Emerging potential of progranulin-dependent SorCS2 signaling in healthy and diseased nervous systems

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Neural regeneration research 2025年第9期20卷 2591-2593页

作者： Alena Salasova Anders Nykjær Danish research Institute of Translational Neuroscience DANDrITE-Nordic EMBL Partnership for Molecular Medicine and Centre of Excellence PROMEMODepartment of BiomedicineAarhus UniversityAarhusDenmark

The formation of the mammalian nervous system and its maturation into sensory,motor,cognitive,and behavioral circuits is a complex process that begins during early embryogenesis and lasts until young *** neurodevelopm... 详细信息

关键词： progr jointly CS2

Assessing suitability of modified center pivot irrigation systems in corn production using low altitude aerial imaging techniques

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Information Processing in Agriculture 2020年第1期7卷 41-49页

作者： Momtanu Chakraborty Lav r.Khot rTroy peters Center for Precision and Automated Agricultural Systems Department of Biological Systems EngineeringWashington State UniversityProsserWA 99350USA

This study evaluated corn(Zea mays ***)canopy vigor and temperature variations using small unmanned aerial system(UAS)based spatiotemporal imagery *** key objective was to develop understanding on site-specific suitability of the Mid Elevation Spray Application(MESA)and Low Elevation Spray Application(LESA)sprinkler systems in irrigating corn crop and potential water as well as energy *** data was collected through small UAS flights at 100m height above ground level and on 49,59,65,77,105,114,134 days after planting(DAP).Small UAS had 5-band multispectral and radiometric thermal imager on-board the *** image processing algorithms were developed to extract various vegetation indices(Normalized difference vegetation index[NDVI],Green NDVI[GNDVI]and Normalized difference red edge[NDrE])and canopy temperature maps from the imagery *** sample T-test was performed on extracted data to understand significant difference,at 5%level,within the LESA and MESA *** both the irrigation techniques,the crop vigor increased in the early growth stage(49,65 DAP),peaked in the mid growth stage(77,105,114 DAP)and then decreased in the late growth stage(134 DAP).The MESA irrigated sections had higher vigor(NDVI,GNDVI,NDrE),but not significant,compared to LESA throughout the ***,the MESA irrigated areas had significantly(0.61–2.07C)cooler canopies than *** results were anticipated,in part due to the issues with the sprinkler heads used in *** heads were being pulled off in the corn field,causing the weighted hose to damage the crop.A different kind of sprinkler head was used after this ***,some strips of corn had already been ***,this study results confirm suitability of aerial imagery data in evaluating pertinent irrigation *** season’s data would be needed to clearly understand which technique(LESA or MESA)is more suitable for irrigating corn crop in the central part

关键词： Mid Elevation Spray Application Low Elevation Spray Application Crop vigor Crop water stress Multispectral imaging Thermal imaging