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1.
垃圾渗滤液的处理关系到城市发展,水资源建设,乃至生态平衡,文章分析了当前国内垃圾渗滤液处理技术并提出了以下发展建议:探索深度处理新技术;探索减少渗滤液产生量的新技术;因地制宜探索多种方法并行处理的新技术;探索渗滤液回收再利用的新技术。  相似文献   

2.
“十三五”以来,我国将牡蛎产业作为十大富农产业之一重点培育,并取得显著成效,当前牡蛎产业已跨上高质高效发展的快车道,但仍然面临资源环境约束加剧、产业链条相对较短、产业集约化程度偏低、风险抵御能力不强等问题。未来一段时期,尤其是在我国乡村振兴战略和农业供给侧结构性改革的加快推进的新形势下,要推动牡蛎产业高质量发展,建议进一步强化牡蛎养殖规划布局,增强产业可持续发展能力,推进一二三产业融合发展,积极培育拓展消费市场,建立全产业链监测预警体系,完善风险防控制度体系。  相似文献   

3.
谭冲  王笑  李琨 《微生物学杂志》2018,38(3):98-102
在近30年来,我国在生物医药产业领域的发展取得了较为显著的成绩,但与发达国家相比,我国在技术研发、人才资源、科研投入及产业化水平等方面还存在明显差距。针对辽宁省生物医药产业的现状和问题进行分析,就辽宁省生物医药产业今后的发展提出对策建议。  相似文献   

4.
带血与排血梅花鹿茸骨片游离氨基酸含量的比较分析   总被引:2,自引:0,他引:2  
选用6对带血与排血梅花鹿茸骨片对其游离氨基酸的含量进行了对比测定,结果表明含有7种必需氨基酸,必需氨基酸所占比例约30%,必需与非必需游离氨基酸之比约0.4。对两者进行方差分析,两种样品游离氨基酸总量和必需游离氨基酸总量差异不显著(P(0.05)。  相似文献   

5.
北京市天敌昆虫产业的发展现状与对策   总被引:2,自引:0,他引:2  
环境、生态和食品安全问题使以释放天敌为主的生物防治措施在有害生物综合治理中的重要性日益提升,为天敌产品提供了重要市场机遇,天敌的产业化正成为使传统植物保护工作优化升级的新型产业。本文综述了北京市天敌昆虫产业化发展的现状,分析了天敌昆虫产业的发展优势及存在的问题,并提出了今后发展应采取的对策。  相似文献   

6.
从青海省青稞产业发展现状出发,在分析青海省青稞生产、成本收益和销售情况的基础上,进一步探究青海省青稞产业发展存在的主要问题,并提出相应的政策建议。  相似文献   

7.
2011年,“台山鳗鱼”被国家质检总局评为全国出口食品农产品质量安全典型示范区和国家地理标志产品,是国内拥有国际定价权的一种农产品。本文介绍了国内外鳗鱼产业的发展情况,分析了台山鳗鱼产业的发展现状。台山鳗鱼产业发展壮大的同时,也存在优质鳗苗资源紧缺、鳗鱼养殖风险加大、国内市场开拓进展缓慢和传统养殖模式受到挑战等问题。最后,提出了建立完善质量安全体系、借助产品质量优势和地理标志产品效应、大力开拓国内外市场、创建国际名牌以及加强产学研合作等对策与建议。  相似文献   

8.
茸角是鹿科动物特有的器官,具有重要的生物学意义。鹿茸生长是一个复杂的生物代谢过程,其重量与遗传因素有一定关联。本研究对饲养条件基本一致的5个梅花鹿(Cervus nippon)群体进行调查,获得高产和低产梅花鹿个体共100只,利用全基因组重测序分析这些个体与鹿茸重量相关的遗传变异。结果表明,共得到94个与鹿茸重量可能相关的遗传变异,其中有2个变异位点分别定位于OAS2ALYREF/THOC4基因的外显子区,且ALYREF/THOC4基因在鹿茸中表达量很高。功能富集分析发现,这些遗传变异与鹿茸生长发育密切相关,可作为潜在的鹿茸重量相关遗传变异。本研究首次通过全基因组重测序直接筛选与鹿茸重量相关的遗传变异,并分析关联基因的生物学功能,对揭示鹿茸生长发育和鹿茸重量差异形成的遗传机制具有重要意义。  相似文献   

9.
泰国是农产品生产和出口大国,政府十分重视生物产业的发展,通过建立高层管理机构、出台优惠政策、制定发展规划,在生物农业、生物医药和生物能源等产业方面取得了较好的进展。未来泰国将更加重视政府指导作用,进一步完善法规建设,加大人才引进力度,实施产业优惠政策,加强生物资源和知识产权保护,重点发展生物农业、生物医药和生物能源产业。  相似文献   

10.
对中国有机农业和有机产业发展基本情况及在全球有机农业和有机产业发展中所处地位进行分析,认为中国有机农业和有机产业由于经济发展取得成就、有机发展政策氛围、有机消费群体和有机市场发展潜力等具有较广阔的发展前景,但由于发展基础薄弱、政府推动作用不明显、有机农业基础研究相对滞后、有机生产推广体系缺失、有机标准制定国际话语权不高和有机市场机制不健全等,中国有机农业和有机产业发展面临严峻挑战。为确保中国有机农业和有机产业持续健康发展,要正视中国有机发展所处阶段、统筹中国有机发展、重视有机市场建设、加强有机基础研究工作和建立完善的监督约束机制。  相似文献   

11.
    
ABSTRACT Debate within the popular and technical literature regarding predictability of antler size at maturity based on 1.5-year antler size in white-tailed deer (Odocoileus virginianus) has led to confusion and uncertainty within constituent groups. Koerth and Kroll (2008) provided measures of age-related antler development using recaptures of known-age males from 12 deer populations in southern Texas. Several design and analysis issues reduce the scope and validity of their conclusion that amount of growth in the first set of antlers was a poor predictor of antler growth at maturity. Although unstated, the statistical hypothesis they tested did not coincide with their specific conclusions. Using a simulation, we show that their methods were susceptible to measurement bias. Their results are applicable only to populations with similar culling and management programs. Additionally, we provide recommendations for future research projects that evaluate predictability of antler size at maturity based on antler size at younger ages.  相似文献   

12.
梅花鹿鹿茸不同产品中氨基酸含量的比较   总被引:1,自引:0,他引:1  
通过对二杠鹿茸、三杈鹿茸、鹿茸片、鹿茸血、鹿角、鹿角盘等鹿茸产品中氨基酸含量的测定研究,结果表明:鹿茸血中氨基酸含量最高,鹿茸片中的氨基酸含量次之,三杈鹿茸中的氨基酸含量高于二杠鹿茸中氨基酸含量,鹿花盘中的含量高于鹿角中的氨基酸含量,从而为鹿茸这一动物性中药材资源的功能评价、药理作用提供科学理论依据。  相似文献   

13.
14.
    
Abstract: Past studies using penned deer provide conflicting results on the age when reliable predictions about antler growth potential in white-tailed deer (Odocoileus virginianus) can be made. We captured wild whitetail males via aerial net gun on 12 ranches in 5 counties in south Texas, USA, from 1999 to 2007 to determine if a reliable juvenile-to-adult relationship in antler development existed. We individually marked and released captured animals at the trap site after we took antler and body measurements. We recaptured marked animals as possible in subsequent years or until we obtained final measurements after legal harvest. Amount of growth in the first set of antlers in whitetail males was a poor predictor of antler growth at maturity. By 4.5 years of age there were no differences (P > 0.05) in antler measurements regardless of the amount of development of the first set of antlers at 1.5 years. We concluded culling of yearling males based on number of antler points would have little positive effect on overall antler quality in future years.  相似文献   

15.
    
ABSTRACT Demarais and Strickland presented several questions about the scope and validity of conclusions regarding predictability of mature antler size based on yearling antler size and produced a simulation model reported to demonstrate measurement bias in our 2008 study. We believe our conclusions were appropriate with our research hypothesis and demonstrated the assumed differential selection bias by hunters used in Demarais and Strickland was unwarranted. Demarais and Strickland provided no metadata to document the provenance of data used in their model and did not account for location, year, cohort, nutrition of research animals, or loss of individuals from their sample population by accidents or death: the same questions raised in their critique. Additionally, selection and experimental design problems in a portion of their sample population indicate their model results are questionable. Our responses to Demarais and Strickland will aid wildlife managers in making future culling decisions in white-tailed deer management.  相似文献   

16.
梅花鹿生长激素基因单核苷酸多态与产茸量性状的相关性   总被引:8,自引:0,他引:8  
杜智恒  白秀娟 《遗传》2007,29(3):337-342
以梅花鹿的生长激素基因(GH)作为候选基因, 分析该基因对梅花鹿产茸量性状的影响。以吉林农业大学鹿场提供的梅花鹿为实验群体, 采用单链构象多态性(PCR-SSCP)和DNA测序的方法检测了GH基因单核苷酸多态性(SNPs), 针对该群体的特点建立合适的统计分析模型, 并进行了GH基因多态性与产茸量的相关分析。结果表明, GH基因对梅花鹿的产茸量有一定影响。G→A突变产生的3种基因型间的第五锯产茸量存在一定的差异(P<0.2), BB基因型个体在第五锯的产茸量与AA基因型个体之间有一定的差异(P<0.2)。  相似文献   

17.
18.
This study combines finite element method and animal studies, aiming to investigate tissue remodelling processes around dental implants inserted into sika deer antler and to develop an alternative animal consuming model for studying bone remodelling around implants. Implants were inserted in the antlers and loaded immediately via a self-developed loading device. After 3, 4, 5 and 6 weeks, implants and surrounding tissue were taken out. Specimens were scanned by μCT scanner and finite element models were generated. Immediate loading and osseointegration conditions were simulated at the implant-tissue interface. A vertical force of 10 N was applied on the implant. During the healing time, density and Young’s modulus of antler tissue around the implant increased significantly. For each time point, the values of displacement, stresses and strains in the osseointegration model were lower than those of the immediate loading model. As the healing time increased, the displacement of implants was reduced. The 3-week immediate loading model (9878 ± 1965 μstrain) illustrated the highest strains in the antler tissue. Antler tissue showed similar biomechanical properties as human bone in investigating the bone remodelling around implants, therefore the use of sika deer antler model is a promising alternative in implant biomechanical studies.  相似文献   

19.
    
To investigate the activity of fermented deer antler on exercise endurance capacity, we evaluated endurance capacity in five-week-old male BALB/c mice by administering the fermented deer antler extract (FA) or the non-fermented deer antler extract (NFA) and then subjected the mice to exercise in the form of swimming. The mice administered 500?mg/kg/day of FA showed a significant increase in swimming time compared with mice administered placebo (16.55?min vs. 21.64?min, P?<?0.05). Serum lactate dehydrogenase (LDH), the marker of the liver and muscle damage, was significantly lower in FA groups. However, NFA groups did not show significantly different swimming time or serum LDH from that of the control group. Moreover, the FA-500 group had significantly higher hepatic superoxide dismutase (SOD) activity after forced swimming than the control and NFA groups (P?<?0.05). These findings suggest that fermentation may increase the exercise endurance capacity of the deer antler.  相似文献   

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