内蒙古自治区畜禽养殖粪污资源化利用的对策与建议   总被引：1，自引：0，他引：1  

成立新  岳林芳  郑重  郭萱  卢龙  凤英  吴春梅  乔健敏  李蕴华  王志铭  宝华 《畜牧与饲料科学》2019,40(8):68-72

畜牧产业是内蒙古自治区的支柱产业之一,随着畜牧业快速发展,畜禽粪污产量持续增加,导致粪污污染日益严重,因此,畜禽养殖粪污资源化利用显得尤为迫切和重要。调研了内蒙古自治区11个旗（县、区）、95户大中型规模化养殖企业,并通过文献查阅及专家咨询等方式调研了3 700户规模化养殖企业,从内蒙古自治区畜禽粪污的基本特征、畜禽粪污资源化利用主要特征和对策与建议方面分析了自治区畜禽养殖粪污及资源化利用的情况。  相似文献   

不同补播模式对荒漠草原土壤团聚体稳定性的影响     

时龙  郭艳菊  于双  陶利波  许冬梅 《中国草地学报》2019,(3):83-89

针对宁夏荒漠草原退化生态系统,采用地表深翻处理后补播蒙古冰草+沙生冰草+牛枝子、沙生冰草+牛枝子、蒙古冰草+牛枝子3种模式进行改良,以未补播草地为对照,通过团聚体粒径组成、平均重量直径、几何平均直径、破坏率等指标,研究不同补播模式对宁夏荒漠草原土壤团聚体稳定性的影响。结果表明,0~40cm土层,各补播草地机械稳定性及水稳性团聚体均以<0.25mm微团聚体为主,且随土层加深<0.25mm微团聚体含量逐渐减少,土壤结构趋于稳定;0~20cm浅层土壤,蒙古冰草+沙生冰草+牛枝子补播草地的>0.25mm机械稳定性团聚体含量显著高于未补播草地(P<0.05),不同处理草地之间>0.25mm水稳性团聚体含量、平均重量直径、几何平均直径及破坏率差异不显著。综上,深翻后补播蒙古冰草+沙生冰草+牛枝子可改善荒漠草原0~20cm浅层土壤机械团聚体稳定性。  相似文献   

Evaluating the risk of tick‐borne relapsing fever among occupational cavers—Austin,TX, 2017     

Stefanie B. Campbell  Anna Klioueva  Jeff Taylor  Christina Nelson  Suzanne Tomasi  Adam Replogle  Natalie Kwit  Christopher Sexton  Amy Schwartz  Alison Hinckley 《Zoonoses and public health》2019,66(6):579-586

Tick‐borne relapsing fever (TBRF) is a potentially serious spirochetal infection caused by certain species of Borrelia and acquired through the bite of Ornithodoros ticks. In 2017, Austin Public Health, Austin, TX, identified five cases of febrile illness among employees who worked in caves. A cross‐sectional serosurvey and interview were conducted for 44 employees at eight organizations that conduct cave‐related work. Antibodies against TBRF‐causing Borrelia were detected in the serum of five participants, four of whom reported recent illness. Seropositive employees entered significantly more caves (Median 25 [SD: 15] versus Median 4 [SD: 16], p = 0.04) than seronegative employees. Six caves were entered more frequently by seropositive employees posing a potentially high risk. Several of these caves were in public use areas and were opened for tours. Education of area healthcare providers about TBRF and prevention recommendations for cavers and the public are advised.  相似文献   

miR-18a通过靶向结合CTGF调控猪颗粒细胞凋亡   总被引：1，自引：0，他引：1  

郭天亚  黄龙  马梦楠  姚望  潘增祥 《畜牧与兽医》2019,(7):13-18

为探究miR-18a对猪卵巢颗粒细胞凋亡的调控作用,利用生物信息学分析、荧光素酶活性检测和体外培养颗粒细胞试验验证miR-18a对CTGF的靶向作用及其在猪颗粒细胞中对CTGF基因表达的影响,并通过流式细胞技术检测其对猪卵巢颗粒细胞凋亡的调控作用。生物信息学分析结果表明,CTGF是miR-18a的潜在靶基因,荧光素酶活性检测进一步验证了miR-18a与CTGF的结合。在培养的颗粒细胞中转染miR-18a模拟物后,qRT-PCR和Western blot结果显示CTGF的mRNA和蛋白水平均显著降低,流式细胞技术检测表明miR-18a显著促进颗粒细胞的凋亡。而转染miR-18a抑制剂后,猪颗粒细胞的凋亡率显著降低,共转染miR-18a抑制剂和CTGF的干扰RNA后,颗粒细胞的凋亡率呈现回升。试验结果表明miR-18a通过靶向结合CTGF基因调控猪颗粒细胞的凋亡。  相似文献   

14-Month-Old Domestic Cat     

Mesher CI 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》1997,26(1):4-4

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南疆杏李园梨小食心虫成虫消长动态及迷向防治效果          下载免费PDF全文

曹华毅  杨龙  潘云飞  王亚桥  冯宏祖  陆宴辉 《植物保护学报》2024,51(1):170-177

为明确南疆新兴特色水果杏李上梨小食心虫Grapholita molesta（Busck）的发生规律和迷向防治效果,于2021—2022年在新疆维吾尔自治区阿克苏地区杏李园采用性诱剂诱集法监测梨小食心虫种群动态,评估性信息素迷向丝对梨小食心虫的防治效果。结果表明,梨小食心虫在阿克苏杏李园1年发生4代,其中越冬代羽化高峰期在4月上中旬,第1代羽化高峰期在5月下旬至6月上旬,第2代羽化高峰期在7月上旬,第3代羽化高峰期在8月上中旬,存在世代重叠现象。2022年农户常规防治区内梨小食心虫的蛀果率为2.46%,性信息素迷向防治区内蛀果率为0.06%; 2021年和2022年使用性信息素迷向丝对梨小食心虫的蛀梢减退率为98.13%和88.65%,2022年的蛀果减退率为98.40%;对不同世代梨小食心虫的雄成虫迷向率在2021年为92.87%~100.00%,雌、雄成虫虫口减退率在2022年为58.75%~81.37%。表明采用梨小食心虫性信息素迷向丝为主的综合防控技术,可有效控制南疆杏李园梨小食心虫的发生与为害。  相似文献   

Mermithid nematode infection in a colony of blue-winged grasshoppers (Tropidacris collaris)     

Lydia M Attard  Ramon A Carreno  Jean A Paré  Andrew S Peregrine  Christopher J Dutton  Thomas R Mason 《Journal of zoo and wildlife medicine》2008,39(3):488-492

A die-off occurred in a captive colony of blue-winged grasshoppers (Tropidacris collaris) at the Toronto Zoo. One fourth of the colony died within a year due to infection with worms initially mistaken for nematomorphs but later identified as nematodes belonging to the Mermithidae, genus Mermis. Mortality persisted and the grasshopper population dwindled over the following years. Mermithid larvae developed in the hemocoel of the insects until they eventually emerged from a hollowed-out exoskeleton. Circumstantial evidence suggests that the parasites were introduced with raspberry browse that was grown on site and contaminated with mermithid eggs.  相似文献   

Effect of human tissue factor pathway inhibitor gene transfection in vein grafts on thrombus formation and early patency rate     

ZHANG Kai-lun  LI Quan  JIANG Xiong-gang  WU Long  ZHOU Cheng  CHEN Shu 《园艺学报》2008,24(6):1051-1055

AIM: To reduce thrombus formation after coronary artery bypass graft,we investigated the antithrombotic effect of human tissue factor pathway inhibitor (TFPI) gene delivery on vein grafts. METHODS: The eukaryotic expressed plasmid vector pCMV-(Kozak)TFPI was constructed. Through pressurizing infusion,vein endotheliocytes were transfected with cationic liposome containing the plasmid vector pCMV-(Kozak)TFPI. After operation, vein grafts were harvested at third day for immunohistochemical, RT-PCR and Western blotting analysis of exogenous gene expression and for observation of thrombus formation by pathological method and scanning electron microscopy. At 30th days, the patency rate was recorded by vessel Doppler ultrasonography. RESULTS: Human TFPI mRNA and protein were detected in TFPI gene transferred vein grafts. Thrombosis was found in 8 animals of empty plasmid control group and in 7 animals of empty control group, but in only 1 of the TFPI group (P<0.05). Thirty days after operation, 5 vein grafts were occluded in both empty plasmid control group and empty control group, but none of vein grafts were occluded in TFPI group (P<0.05). The endothelial surfaces of the vein grafts in both control groups were covered with aggregated erythrocytes and platelets, but not in TFPI group. CONCLUSION: Human tissue factor pathway inhibitor gene transfection reduces thrombus formation and improves early patency rate in vein grafts.  相似文献   

Correction to: Multi-level,multi-scale habitat selection by a wide-ranging,federally threatened snake     

Javan M. Bauder  David R. Breininger  M. Rebecca Bolt  Michael L. Legare  Christopher L. Jenkins  Betsie B. Rothermel  Kevin McGarigal 《Landscape Ecology》2018,33(9):1645-1646

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Habitat amount and quality,not patch size,determine persistence of a woodland-dependent mammal in an agricultural landscape     

Riana Gardiner  Glen Bain  Rowena Hamer  Menna E. Jones  Christopher N. Johnson 《Landscape Ecology》2018,33(11):1837-1849

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