2008年春季北方蚕区桑蚕新品种实验室鉴定(山东点)报告

对2008年春参加北方蚕业科研协作区鉴定的8对桑蚕新品种进行了山东点实验室鉴定,各项目调查时间、内容和方法均按《北方蚕区桑蚕品种共同鉴定工作细则》进行,结合蚕期的饲养观察、茧期调查、丝质鉴定等相关项目的调查,了解其饲育成绩及饲育特点,并对各品种进行简要的概评和分析。     

2006年春季北方蚕业协作区桑蚕新品种实验室鉴定(山东点)鉴定报告

2006年春对参加北方蚕业协作区鉴定的九对蚕品种进行了实验室鉴定,各项目调查的时间、内容和方法均按《北方蚕区桑蚕品种共同鉴定工作细则》规定进行,结合蚕期的饲养观察、茧期调查、丝质鉴定等,了解其饲育成绩及饲育特点,并对各品种进行简要说明和分析。     

2006年春季北方蚕业协作区及全国桑蚕新品种实验室鉴定(陕西点)报告

2006年春对参加北方蚕业协作区桑蚕新品种鉴定的8对品种进行了实验室鉴定,试验操作按《北方蚕区桑蚕品种共同鉴定工作细则》规定进行,结合蚕期饲育观察,调查了各个品种饲育成绩及饲育特点,并对其进行了概述及分析。     

2005年春季北方蚕业协作区桑蚕新品种实验室(山东点)鉴定报告

2005年春对参加北方蚕业协作区鉴定的八对蚕品种进行了实验室鉴定,各项目调查的时间、内容和方法均按《北方蚕区桑蚕品种共同鉴定工作细则》规定进行,结合蚕期的饲养观察、茧期调查、丝质鉴定等,了解其饲育成绩及饲育特点,并对各品种进行简要说明和分析。     

2007年春季北方蚕区桑蚕新品种实验室鉴定(山东点)试验鉴定报告

2007年春对参加北方蚕业协作区鉴定的10对蚕品种进行了实验室鉴定,各项目调查的时间、内容和方法均按《北方蚕区桑蚕品种共同鉴定工作细则》规定进行,结合蚕期的饲养观察、茧期调查、丝质鉴定等,了解其饲育成绩及饲育特点,并对备品种进行简要说明和分析。     

2011年春季北方蚕业科研协作区桑蚕新品种实验室鉴定（河南点）报告

2011年春季河南省蚕业科学研究院对北方蚕业科研协作区的3对桑蚕新品种进行了实验室鉴定,调查了其饲育成绩及饲育特点,并对品种进行了概述和分析。     

2010年春季北方蚕业科研协作区桑蚕新品种实验室鉴定(河南点)报告

2010年春对北方蚕业科研协作区的3对桑蚕新品种进行了实验室鉴定,调查了其饲育成绩及饲育特点,并对品种进行了概述和分析。     

北方蚕区2015年春季桑蚕新品种实验室鉴定(山东点)报告

2015年春季,山东蚕区试验点对来自北方蚕业科研协作区4家育种单位的5对桑蚕品种进行了实验室鉴定试验.以现行生产用种菁松×皓月为对照种,结合试验室蚕期饲养、茧期调查、缫丝检验,总结分析各试验蚕品种在山东蚕区试验点的性状表现、蚕期饲育特点及茧丝质综合成绩,并进行简要的评价和分析.     

2005年北方蚕区桑蚕品种鉴定陕西点鉴定报告

2005年春对参加北方蚕业协作区桑蚕新品种鉴定的7对品种进行了实验室鉴定,调查了其饲育成绩及饲育特点,并对各个品种进行了初步分析。     

2003年北方蚕区桑蚕新品种实验室(陕西点)鉴定报告

20 0 3年春对参加北方蚕业协作区桑蚕新品种鉴定的 5对品种进行了试验室鉴定 ,调查了其饲育成绩及饲育特点 ,并对各个品种进行了简要说明及分析。     

河西地区农户耕地流转现状及对策——以武威市凉州区为例

从河西地区农地流转这一视角出发，以武威凉州区38个乡镇、101个农村土地流转示范点为主要调研样本点，在深入调研及广泛收集、整理相关调研资料和调查问卷的基础上，借鉴国内外相关研究成果，归纳和总结了凉州区农地流转的发展现状，较为详细地分析了凉州区农地流转存在的问题，并结合凉州区的实际情况提出了相关对策。     

嘉峪关市肉牛产业发展的对策建议

嘉峪关市位于甘肃省西端,是一座工业旅游城市,城镇化率94.43%。近年来,嘉峪关市坚持用工业化思维谋划现代农业,紧紧围绕草食畜牧业发展,积极争取燕麦草种植基地建设、粮改饲工程等项目,培育了一批肉牛养殖及育肥示范户,为调整畜牧产业结构、提升农产品市场竞争力做出了极大贡献。实际生产中还存在着一些不容忽视的问题,通过调查研究,提出了相应的对策建议。     

岩溶地区发展生态畜牧业的潜力、问题和支撑体系

中国工程院关注岩溶地区生态修复和扶贫开发,部署了西南草地畜牧业咨询项目.本文是该项目专题调研组在任继周院士带领下赴渝、桂、粤、黔、滇、湘6省的考察报告.调研组发现岩溶地区存在发展生态畜牧业的巨大潜力,发展生态畜牧业可解决生态修复和脱贫致富方面的难题,还分析了岩溶地区生态畜牧业发展存在的问题和应建立的支撑体系.     

Animal health research in the Small Ruminant Collaborative Research Support Program

Disease is a major constraint in small ruminant production systems in lesser-developed countries throughout the world. Animal health projects have been an integral part of the Small Ruminant Collaborative Research Support Program (SR-CRSP) from its inception. At the onset, these projects were oriented toward herd health care and veterinary extension activities. Later, all the projects developed a sharper focus in that they were directed to more basic studies of infectious disease. Diseases currently being investigated include caseous lymphadenitis, contagious caprine pleuropneumonia, caprine arthritis-encephalitis, ovine pulmonary carcinoma, ovine progressive pneumonia and neonatal mortality of alpaca. Continued, sharply focused studies are projected for the future to take advantage of recombinant technology in the development of multivalent vaccines.     

张掖市规模化肉牛场疫病防控体系的建立和推广

张掖市百万头肉牛基地建设工程是张掖市确立的十大工程之一。为了有效控制规模肉牛场的疫病,使工程建设顺利实施,张掖市动物疫病预防控制中心对全市规模肉牛场基本情况和主要发生的疫病情况开展了普查,掌握了防疫工作中主要存在的问题,提出了完善技术规程、加强饲养管理、狠抓消毒灭源、坚持预防为主等防控措施。通过在全市规模肉牛场大力推广...     

畜牧学科遗传育种与动物营养学面上项目申请和资助情况分析

畜禽遗传育种学和动物营养学是国家自然科学基金委员会生命科学部六处畜牧学科面上项目的重要组成部分,本文对2004—2007年畜牧学科面上项目中的遗传育种学、动物营养学和饲料资源学的申请和资助情况进行了总结,对申请和资助项目快速增长情况进行了分析,并针对2008年基金委资助格局发生变化的状况,建议项目申请者明确定位,撰写申请书时要在突出创新思想的基础上,以提出的科学问题为主线,阐明拟解决科学问题的方法和手段。本文旨在为从事该专业的科研人员申报科学基金提供参考。     

Pathologic findings in reintroduced Przewalski's horses (Equus caballus przewalskii) in southwestern Mongolia.

The Przewalski's horse (Equus caballus przewalskii) was extinct in the wild by the mid 1960s. The species has survived because of captive breeding only. The Takhin Tal reintroduction project is run by the International Takhi Group; it is one of two projects reintroducing horses to the wild in Mongolia. In 1997 the first harem group was released. The first foals were successfully raised in the wild in 1999. Currently, 63 Przewalski's horses live in Takhin Tal. Little information exists on causes of mortality before the implementation of a disease-monitoring program in 1998. Since 1999, all dead horses recovered (n = 28) have been examined and samples collected and submitted for further investigation. Equine piroplasmosis, a tick-transmitted disease caused by Babesia caballi or Theileria equi, is endemic in Takhin Tal and was identified as the cause of death of four stallions and one stillborn foal. In December 2000, wolf predation was implicated in the loss of several Przewalski's horses. However, thorough clinical, pathologic, and bacteriologic investigations performed on dead and surviving horses of this group revealed lesions compatible with strangles. The extreme Mongolian winter of 2000-2001 is thought to have most probably weakened the horses, making them more susceptible to opportunistic infection and subsequent wolf predation. Other occasional causes of death since 1999 were trauma, exhaustion, wasting, urolithiasis, pneumonia, abortion, and stillbirth. The pathologic examination of the Przewalski's horses did not result in a definitive diagnosis in each case. Several disease factors were found to be important in the initial phase of the reintroduction, which could potentially jeopardize the establishment of a self-sustaining population.     

Genetic diversity studies in farm animals – a survey

During the past decade a large number of genetic diversity studies in domestic livestock based on microsatellite loci was carried out all over the world. A survey among research groups reveals that in 50% of 87 projects more than eight breeds are investigated. Breeds are chosen mainly because of their long history of isolation, unique phenotypic qualities or an evolution within a unique environment. In half of the projects the average planned sample size per breed is higher than 50. Small ruminants are investigated in the majority of projects. The most preferred type of sample is blood and the most preferred markers are microsatellite loci. To combine results from different diversity studies, the adherence to recommendations, e.g. which loci to genotype or required sample sizes per breed, is necessary. The so called International Society for Animal Genetics (ISAG)/FAO recommendations, which were developed for that purpose, are well known, but the use of recommended microsatellite loci varies between species. The highest acceptance was found in pig, and the lowest in chicken.     

神经生长因子及其受体TrKA在山羊脊髓发育中的表达特点

运用免疫组织化学超敏 SP法对山羊胎儿脊髓发育中神经生长因子 (nerve growth factor,NGF)及其高亲和力受体 Tr KA的表达及其功能进行了系统的研究和探讨。结果显示 ,山羊胎儿脊髓灰质中存在 NGF及其受体 Tr KA,于 6周龄胚就可检测到 ,随胚龄增加 ,其表达范围及免疫反应着色程度逐渐增强。 NGF主要分布于腹角和背角的神经细胞 ,反应产物主要定位于胞质和突起 ;Tr KA的分布主要以腹角及胶状质为主 ,反应产物主要定位于胞核 ,后期胞质及突起也可见到阳性反应。在山羊胎儿脊髓白质中也可观察到 NGF及 Tr KA免疫阳性反应 ,其发育后期更为显著 ,阳性反应主要分布于神经胶质细胞核、神经纤维的轴索及雪旺氏细胞。结果提示 ,NGF不仅对交感和感觉神经元的发育起作用 ,而且还与腹角运动神经元的发育有关